目录摘要
1.声表面波单电子输运器件的频率响应研究
编辑:李燕 许佳平1, 路 川2, 赵建君1, 李 玲3, 高 洁1,2 (1.四川大学物理科学与技术学院,四川
成都 610064;2.中国测试技术研究院,四川 成都
610021;3.四川师范大学物理学院&低维结构物理实验室,四川 成都 610066)
摘
要:为减少样品盒的电磁效应对声表面波单电子输运的影响,需要优化器件的样品盒结构。我们用全波法模拟不同样品盒的声表面波单电子输运器件的频率响应,同时测试该频率响应。模拟结果与测试结果较为一致。二者表明,电磁馈通效应对声表面波单电子输运器件的频率响应影响显著。通过适当改进器件的样品盒可以较有效地抑制电磁馈通效应。这将有助于提高量子化声电电流的精度。
关键词:声表面波单电子输运器件;频率响应;耦合模模型;全波法;电磁馈通
中图分类号:O469;TN65
文献标识码:A 文章编号:1672-4984(2008)02-0001-05
Frequency
responses of the surface-acoustic-wave driving
single-electron-transport device XU Jia-ping1, LU Chuan2,
ZHAO Jian-jun1, LI Ling3, GAO Jie1,2 (1.College of Physical
Science and Technology,Sichuan University,Chengdu
610064,China; 2.National Institute of Measurement and
Testing Technology,Chengdu 610021,China; 3.College of
Physics and Lab for Low-dimensional Structure Physics,Sichuan
Normal University,Chengdu 610066,China)
Abstract: To
restrain the influence of electromagnetic effects of package
on the single electron transport driven by the surface
acoustic wave, the structure of device’s package should be
optimized. In this paper, the frequency responses of the
surface-acoustic-wave driving single-electron-transport
devices with different packages are investigated both
numerically and experimentally. The measured results agree
well with the numerical simulations based on the usual
full-wave method. Specifically, by using properly-designed
packages we show that the electromagnetic feedthrough,
strongly affecting the frequency-response quality of the
devices, could be suppressed efficiently. This would be
helpful to improve the precision of quantized current driven
by the surface acoustic wave.
Key words: SAW/SET
device; Frequency response; COM model; Full wave method;
Electromagnetic feedthrough
2. 基于多极板电容传感器测量原油含水率的研究
编辑:李燕 高晓丁1, 高 鹏2, 王 旭1 (1.西安工程大学机电学院,陕西 西安
710048;2西安理工大学自动化与信息工程学院,陕西 西安 710048)
摘
要:设计了测量原油含水率的多极板式电容传感器及测量电路;建立了多极板式电容传感器测量原油含水率的数学模型,得到了原油含水率变化量与多极板式电容传感器等效电容变化量之间的函数关系。进行了五极板式电容传感器和单极板式电容传感器测量油水混合物含水率的对比实验。实验结果表明采用五极板式电容传感器测量油水混合物的含水率,相对于采用单极板式电容传感器测量油水混合物的含水率的测量精度有大幅度的提高;而且采用五极板式电容传感器测量油水混合物的含水率,无论是在低含水率端还是在高含水率端其测量结果都比较稳定。
关键词:多极板电容传感器;原油;含水率;测量电路;测量精度
中图分类号:TP272;TP212
文献标识码:A 文章编号:1672-4984(2008)02-0006-03
Research of
measuring containing water ratio in crude oil based on
multi-electrode capacitance sensor GAO Xiao-ding1, GAO
Peng2, WANG Xu1 (1.College of Mechanic Electrical
Engineering,Xi’an Polytechnic University, Xi’an
710048,China; 2.College of Automation and Information
Engineering,Xi’an University of Technology,Xi’an
710048,China)
Abstract: A Multi-electrode capacitance
sensor for measuring containing water ratio in crude oil and
its circuit was designed. The multi-electrode capacitance
sensor was designed for the structure of combining. By setting
up the mathematic model of the measuring method, the function
of the changing rate of containing water ratio in crude oil
and the equivalent capacitance of multi-electrode capacitance
sensor were achieved. An experiment to contrast the measuring
containing water ratio in crude oil with pent-electrode
capacitance sensor and mono-electrode capacitance sensor has
been carried out and proved that comparing with the result of
experiments, the precisions of fifth-electrode capacitance
sensor in measuring the containing water ratio in crude oil
has been greatly improved. Furthermore, whether the containing
water ratio in crude oil is high or low, the measuring result
by using fifth-electrode capacitance sensor is
stable.
Key words: Multi-electrode capacitance sensor;
Crude oil; Containing water ratio; Measuring circuit;
Measuring precisio
3. 茶叶中无机阴离子测试与标准的研究进展
编辑:李燕 谭和平, 周黎黎, 王 智, 孙登峰 (中国测试技术研究院,四川 成都
610021)
摘
要:在检索了1966年以来国内外关于无机阴离子分析方法研究文献和标准的基础上,对茶叶中无机阴离子及其测试与标准的研究现状进行了系统的介绍,对滴定法、比色法、离子选择电极法以及离子色谱法等主要分析方法进行了分析讨论,并对目前茶叶中无机阴离子的限量标准作了介绍和比较,最后展望了茶叶中无机阴离子测试与标准的研究趋势和前景。
关键词:茶叶;无机阴离子;测定;标准
中图分类号:TS272.5;TS272.7
文献标识码:A 文章编号:1672-4984(2008)02-0009-04
Review on
inorganic anion determinations and method standards for
tea TAN He-ping, ZHOU Li-li, WANG Zhi, SUN
Deng-feng (National Institute of Mearsurement and Testing
Technology,Chengdu 610021,China)
Abstract: According to
those literatures and standards for inorganic anion
determinations since 1966, researches of inorganic anions in
tea, their corresponding determinations and standards were
systematically introduced. Those major methods for inorganic
anion determinations including titration, colorimetry, ion
selective electrode method(ISE) and ion chromatography(IC)
etc. were investigated and discussed, at the same time, limits
for inorganic anion in tea were described and compared. At
last, the research focuses and development trends of inorganic
anion determinations for tea and those of their standards were
proposed.
Key words: Tea; Inorganic anion;
Determination; Standard
4. 3MN叠加式力标准机的研制 编辑:李燕 唐纯谦1,
高富荣2, 陈明华2, 陈世超1, 徐尹杰1, 谭洪辉2, 易 伟1 (1.中国测试技术研究院,四川 成都
610021;2.广东省计量科学研究院,广东 广州 510405)
摘
要:运用“平面二次包络环面蜗杆传动”原理,研制一种“轴向可调隙蜗轮蜗杆传动副”,将它应用到机械力源动力传动的伺服电机减速机构中,驱动精密滚珠丝杠上的动横梁来完成对参考力传感器的粗加载。运用物理学中的“逆压电效应”原理,采用压电陶瓷材料和专门的工艺方法制作成的力传感器微变形补偿装置—压电陶瓷力发生装置,并将它应用到机械力源的精加载闭环控制中,实现了大载荷下参考传感器微小力值变化的精确控制。研制最大负荷为3MN的叠加式力标准机。
关键词:平面二次包络环面蜗杆传动;压电陶瓷;逆压电效应;压电陶瓷力发生装置;参考传感器;机械力源;叠加式力标准机
中图分类号:TP212.12;TB931
文献标识码:A 文章编号:1672-4984(2008)02-0013-03
Preparation
of 3 MN build-up force standard machine TANG Chun-qian1,
GAO Fu-rong2, CHEN Ming-hua2, CHEN Shi-chao1, XU Yin-jie1, TAN
Hong-hui2, YI Wei1 (1.National Institute of Measurement and
Testing Technology,Chengdu 610021,China; 2.Guangdong
Institute of Metrology,Guangzhou
510405,China)
Abstract: Based on“plane double
enveloping hourglass worm gearing” technology, one kind
of“axial clearance adjustable warm wheel and worm transmission
pair” was developed. In the reducing mechanism of servomotor
which was the power transmission of mechanical forcing device,
the transmission pair could drive the crossbeam on the precise
ball screw. This could be used to load the reference force
transducer roughly. According to the “converse
piezoelectric effect” principle in physics, piezoelectric
ceramic force generator was prepared with piezoelectric
ceramic materials and special technological methods, which was
a micro-deformation compensator set. In the close-loop control
system for precision loading of the forcing device, it could
be used to precisely control the tiny force change of the
reference force transducer under large load. At present, one
build-up force standard machine with the maximum load capacity
of 3MN was prepared.
Key words: Plane double enveloping
hourglass worm gearing; Piezoelectric ceramic; Converse
piezoelectric effect; Piezoelectric ceramic force generator;
Reference tronsducer; Mechanical forcing device; build-up
force standard machine
5. 基于机器视觉与等倾干涉术的平面度测量装置
编辑:李燕 汤昌社, 潘嘉声, 周建友, 胡润洪 (广东省计量科学研究院,广东 广州
510405)
摘
要:为实现平晶平面度的快速测量,运用机器视觉技术对等倾干涉仪进行改造。计算机对CCD采集的干涉图进行实时处理,再利用所有像素样本点(约4
000个)的最小二乘法同时拟合出多条干涉环直径并计算标准干涉环直径D0。对平晶表面不同的检定点,测量软件均能根据其实测D0值计算平面度。改造后的干涉仪不但显著提高了工作效率,且大大降低了劳动强度。
关键词:平晶;CCD;等倾干涉仪;最小二乘拟合;标准干涉环
中图分类号:TH741.3;TH821
文献标识码:A 文章编号:1672-4984(2008)02-0016-02
Flatness
measuring apparatus based on machine vision and isoclinic
interferometry TANG Chang-she, PAN Jia-sheng, ZHOU
Jian-you, HU Run-hong (Guangdong Institute of
Metrology,Guangzhou 510405,China)
Abstract: Isoclinic
interferometer was rebuilt with machine vision technology to
realize fast flatness measurement of optical flat.
Interferogram captured by CCD was real-timely processed with
computer and then standard interference ring diameter D0 was
calculated through using least square fitting method based on
all sample points(about 4000 pixels). Flatness of every
verification point on optical flat surface could be calculated
with real-time D0 calculated through this measuring software.
The rebuilt interferometer improves working efficiency
apparently and reduces workload greatly.
Key words:
Optical flat; CCD; Isoclinic interferometer; Least square
fitting; Standard interference ring
6. 测绘仪器测量不确定度中的灵敏系数
编辑:李燕 黄 稣, 庞 耘 (广东省计量科学研究院,广东 广州 510405)
摘
要:灵敏系数的计算是不确定度计算的关键。在测绘仪器的计量检定中,常对多个目标进行多测回的测量来采集的数据(输入量),通过公式间接求出测量结果(输出量)。因而在测量不确定度的评定中,数学模型繁杂,致使求取(输入量到输出量的)灵敏系数困难,方法也各不相同。采用强行偏导法;传递继承法;方差比例法计算出几个典型的测绘仪器(经纬仪,经纬仪检定装置和全站型电子速测仪)的灵敏系数。解决了测绘仪器测量不确定度评定中的技术难题。
关键词:测绘仪器;测量不确定度;输入量;输出量;灵敏系数
中图分类号:TH761;TM930.115
文献标识码:A 文章编号:1672-4984(2008)02-0018-04
Sensitivity
coefficient in measurement uncertainty components of surveying
instruments HUANG Su, PANG Yun (Guangdong Institute of
Metrology,Guangzhou 510405,China)
Abstract: Sensitivity
coefficient calculation is the key point of uncertainty
evaluations. In surveying instrument verifications, input
values, data were collected through measuring multi-target for
many times, and output value, surveying result was calculated
with mathematical formula indirectly. But in measurement
uncertainty evaluation, the mathematical model often was
complex and was difficulty to calculate sensitivity
coefficient (from input value to output value), furthermore,
the evaluation methods were different too. Herein, the
sensitivity coefficients were calculated with partial
derivative, iterative method and deflection ration for some
typical surveying instruments including theodolite, theodolite
verification device and electronic tachometer total station.
And the technique problem for surveying instrument uncertainty
evaluation was resolved.
Key words: Surveying
instrument; Measurement uncertainty; Input value; Output
value; Sensitivity coefficient
7. 电动振动台扩展台面校准的研究
编辑:李燕 乔新愚 (信息产业部电子五所计量中心,广东 广州 510610)
摘
要:作为振动台重要的组成部分,扩展台面在振动试验中起着举足轻重的作用,但它却是当前电动振动台校准检定的空白。该文就振动校准检定中存在的问题,依据多年从事振动台校准检定的实践,运用大量详实的数据,论证了扩展台面对各种振动参数的影响并进行了深入的理论分析,在此基础上提出了扩展台面标准化的思想及相应的切实可行的校准检定方法,对振动台校准检定的完善有积极的指导意义。
关键词:振动;校准;扩展台面;标准化;检定规程
中图分类号:TH825;TB936
文献标识码:A 文章编号:1672-4984(2008)02-0022-02
Research on
calibration of dynamoelectric vibration extending
table Qiao Xin-yu (Center of Calibration and Testing
,CEPREI,Guangzhou 510610,China)
Abstract: Extending
table play a prominent role in vibration experiment in
vibration system. However, calibration of extending table is
blank currently. Problems in calibration of vibration was
introduced. Influence of extending table to vibration
experiment was analyzed thoroughly by large mount of data. At
the same time, it put forward to idea of standardizing
extending table and corresponding calibration method which can
improve calibration of vibrator.
Key words: Vibration;
Calibration; Extending table; Standardizing; Verification
regulation
8. 车载网络通讯协议软件自动诊断测试系统 编辑:李燕 彭忆强, 黎
薇 (西华大学交通与汽车工程学院,四川 成都 610039)
摘
要:基于CAN总线技术,以模拟实时操作系统OSEK的任务调度算法为基础,采用德国大众公司的TP2.0传输协议作为网络传输层,以KWP2000关键字协议作为网络应用层,利用面向对象的方法,构建了车载网络通讯协议的自动诊断测试系统的UML软件模型,并用VC++6.0实例化了此诊断测试系统。通过使用建立的诊断用例库,此系统能很好地进行网络协议的自动检测。该系统已经在某型轿车组合仪表ECU的软件开发过程中得到了应用,收到了良好的效果。
关键词:CAN总线;TP2.0;KWP2000关键字协议;UML;协议诊断
中图分类号:TN919.2;TP206+.1
文献标识码:A 文章编号:1672-4984(2008)02-0024-05
Automatic
diagnostic system for the automotive network communication
protocol PENG Yi-qiang, LI Wei (School of Traffic and
Automotive Engineering,Xihua University,Chengdu
610039,China)
Abstract: Based on the CAN-bus and the
simulated OSEK real-time scheduling algorithm, using the TP2.0
transport protocol as transport layer and the KWP2000 as
application layer, the software model of an automatic
diagnostic system was built with UML and the system was
realized with VC++6.0. With the help of the test cases, which
are built in the software, the automatic diagnostic system can
be used for automotive ECU’s transport protocol test in its
early development phase.
Key words: CAN bus; TP2.0;
KWP2000 keyword Protocol; UML; Protocol diagnostic
9.
基于虚拟仪器的振动台综合参数测试系统开发 编辑:李燕 黄吉涛1, 周伦彬2,
马博群3 (1.宁夏电能计量检定中心,宁夏 银川 750001;2.广州市计量检测技术研究院,广东 广州
510030;3.广州市特种设备检测研究院,广东 广州 510400)
摘
要:介绍了振动台综合参数测试系统的开发。设计采用了虚拟仪器的设计理念,以虚拟软件开发平台LabWindows/CVI和基于USB接口的外挂式数据采集装置建立了一套适合于便携测试的振动数据采集与分析系统,系统简化了测试的流程、降低了测试成本、提高了系统的集成度、方便了数据的管理与维护,具有高性能、低价格、强扩展、易携带特点,系统经测试证明完全达到设计要求。
关键词:虚拟仪器;振动台综合参数测试;数据处理;LabWindows/CVI
中图分类号:TH825;TP319
文献标识码:A 文章编号:1672-4984(2008)02-0029-03
Development
of multi-parameter vibration testing system based on virtual
instruments HUANG Ji-tao1, ZHOU Lun-bin2, MA
Bo-qun3 (1.Ningxia Verification Center of Electric Energy
Metering,Yinchuan 750001,China; 2.Guangzhou Institute of
Measurement and Test,Guangzhou 510030,China; 3.Guangzhou
Special Equipment Inspection College,Guangzhou
510400,China)
Abstract: The development of
multi-parameter testing system for vibrators was presented.
Based on virtual instrument technology, one portable vibrator
DAQ and analysis system was designed with LabWindows/CVI as
the software development platform and with USB technology as
exterior DAQ device. This system simplified the testing
process, reduced the testing costs, improved the integration
of the system and facilitated the management and maintenance
of data. It has specialties in high performance, low price,
strong expansion and portability. Test results proved that
this system fully meet the design requirements.
Key
words: Virtual instruments; Multi-parameter vibration test
system; Data processing; LabWindows/CVI
10.
电力系统监控软件性能测试 编辑:李燕 朱杰媛, 朱 岩, 管晓静 (国电南京自动化股份有限公司,江苏 南京
210003)
摘
要:以Mercury公司的LoadRunner负载压力测试工具为例,介绍其工作原理与内部流程。分析电力系统监控软件与C/S、B/S架构系统软件性能测试差异。针对电力系统监控软件的实时性特点与性能测试要素,提出一种切实可行的负载压力测试方案,解决性能测试工具录制脚本困难问题,并成功应用于电力系统监控软件产品性能测试当中。
关键词:电力系统监控软件;性能测试;负载压力测试;LoadRunner;脚本录制
中图分类号:TP206+.1;TM744
文献标识码:A 文章编号:1672-4984(2008)02-0032-04
Performance
test of supervisory control software for electric power
system ZHU Jie-yuan, ZHU Yan, GUAN Xiao-jing (Guodian
Nanjing Automation Co. Ltd.,Nanjing
210003,China)
Abstract: Load pressure test tool,
LoadRunner produced by Mercury Company was regarded as an
example to illustrate the operational principle and process
for test tools. The performance test difference between the
supervisory control software for electric power system and C/S
and B/S truss software was investigated. According to the
real-time characteristic and performance-testing essentials of
supervisory control software for electric power system, one
feasible load-testing mean was brought forward, which resolved
the difficulty in script transcribing. And it could be
successfully applied into supervisory control software
tests.
Key words: Supervisory control software of
electric power system; Performance test; Load pressure test;
LoadRunner; Script transcribe.
11. SIP协议在一种通信软件测试中的应用
编辑:李燕 赵会娟, 胡鹏飞 (西南交通大学电气工程学院,四川 成都 610031)
摘
要:Magic是西门子通信技术(北京)有限公司正在开发的一个通信软件,为了测试Magic功能的正确性,利用了SIP(Session
Initiation
Protocol)协议的工作原理以及所获得的SIP协议的数据信息,对其进行测试。采用了网络信息包分析工具,分析该工具所获得的SIP协议的数据信息,可以了解Magic各项功能的工作流程,以完成测试工作。实践结果表明,该方法可以完成Magic的各项功能测试。
关键词:SIP;通信软件;Magic;软件测试;网络信息包分析工具
中图分类号:TN915.04;TP311.52
文献标识码:A 文章编号:1672-4984(2008)02-0036-04
Application
of sip in one communication software testing ZHAO Hui-juan,
HU Peng-fei (School of Electric Engineering,Southwest
Jiaotong University,Chengdu 610031,China)
Abstract: In
order to test the functional validity of one communication
software named Magic which was developed by Beijing SIEMENS.
Ltd., the principle of SIP (Session Initiation Protocol) and
its received information were used. This method using network
packet analyzer and analyzing the SIP information received by
the analyzer could be used to know the working process for
each function of Magic and complete the testing. The results
showed this method could complete each function testing of
Magic.
Key words: SIP; Communication software; Magic;
Software testing; Network packet analyzer
12.
通用嵌入式测控系统开发平台研究 编辑:李燕 唐 华, 毛 磊, 何仁伦 (中国西南电子设备研究所,四川 成都
610036)
摘
要:针对目前工业控制领域应用的嵌入式测控产品大多存在技术落后、通用性差的问题,提出基于ARM和DSP的通用嵌入式测控系统开发平台,将DSP的强大运算能力和新型单片机ARM处理器的强大控制能力结合在一起,能满足大多数中低速嵌入式测控系统的应用要求,由于其良好的通用性,在多个项目应用中均取得了较好的效果。
关键词:测控系统;ARM;DSP;CAN;USB
中图分类号:TP273+.5;TP311.52
文献标识码:A 文章编号:1672-4984(2008)02-0040-04
Embedded
system development kit for testing and controlling based on
ARM and DSP TANG Hua, MAO Lei, HE Ren-lun (Southwest
China Research Institute of Electronic Equipment,Chendu
610036,China)
Abstract: At present, most embedded
products for testing and controlling applied in the industry
are not advanced and universal enough. The embedded system
development kit for testing and controlling based on ARM and
DSP was presented in this paper. This development kit combined
the high-speed computational capability of DSP with the strong
controlling capability of ARM, which could fulfill most
application requirements of middle or low speed embedded
system for testing and controlling. With its good capability,
this development kit has been applied in several projects
successfully.
Key words: Testing and controlling
system; ARM; DSP; CAN; USB
13. 基于CAN总线的电梯远程监控系统设计
编辑:李燕 毛建明, 宋启敏 (上海大学,上海 200072)
摘
要:分析了CAN总线技术的优点,提出了基于CAN总线组建电梯远程监控系统的方法,并通过对系统的数据采集,适配器软硬件设计,监控软件设计等方面论述了系统的实现。同时也讨论了使用USB2.0对系统扩展能力的影响。该系统运行稳定高效,大大缩短电梯故障维修的反应时间,人机界面友好,具有良好的可扩展性。
关键词:CAN总线;电梯远程监控系统;电梯监控软件;USB
2.0;USB-CAN适配器
中图分类号:TU857;TP277 文献标识码:A
文 章编号:1672-4984(2008)02-0044-04
Design of remote
elevator monitoring system based on CAN bus MAO Jian-ming,
SONG Qi-min (Shanghai University,Shanghai
200072,China)
Abstract: This paper presented the
feasibility of a Remote Elevator Monitoring System(REMS),which
was mainly based on the technology of CAN bus. It analyzed the
advantages of CAN bus technology and then introduced the
system including data collecting, the design of soft-hardware
and monitoring software. Meanwhile this paper also discussed
the effect upon the system’s extendibility by applying of
USB2.0 technology. This system possesses high stability,high
efficiency,friendly interface and good extendibility. It can
greatly reduce the reaction time of elevator failure
maintenance.
Key words: CAN bus; REMS; Monitoring
software; USB 2.0; USB-CAN adapter
14.
多线程技术在虚拟仪器软件开发中的应用 编辑:李燕 成凤敏, 苏小光 (南京航空航天大学航空宇航学院,江苏 南京
210016)
摘
要:多线程技术是Win32操作系统的一项重要软件技术,能够更好地开发并行性任务和提高系统性能,在避免阻塞、减少运行时间和最大程度利用多处理器的性能方面具有明显的优点。在简要介绍虚拟仪器的基础上,对LabWindows软件开发平台下利用多线程技术实现数据采集进行了研究。将多线程应用到虚拟仪器软件设计中,大大提高了系统的性能和CPU的利用率。
关键词:多线程;线程池;异步定时器;数据采集;LabWindows/CVI
中图分类号:TP311.11;TP316.7
文献标识码:A 文章编号:1672-4984(2008)02-0048-03
Application
of multi-threading in virtual instrument software
development CHENG Feng-min, SU Xiao-guang (College of
Aerospace Engineering,Nanjing University of Aeronautics and
Astronautics,Nanjing 210016,China)
Abstract: The
multi-threading technology is an important software technology
of Win32 operating system. It can develop the parallel tasks
well and enhance the system performance. It also has the
obvious merit in avoiding blocking, reducing the running time
and making most of multi-processor performance. After
introducing the virtual instrument in brief, data acquisition
using multi-threading technology based on CVI software was
researched and designed. According to the application of
multi-threading in virtual instrument software design, system
performance and CPU efficiency are enhanced
greatly.
Key words: Multi-thread;Thread
pool;Asynchronous timer;Data
acquisition;LabWindows/CVI
15. 基于CAN总线的智能抄表系统的设计
编辑:李燕 李科勇, 冉蜀阳, 史 一 (四川大学电气信息学院,四川 成都 610065)
摘
要:智能化住宅小区是为了适应飞速发展的信息时代要求而提出的全新概念,它是新兴的高科技产物。将CAN总线技术运用于小区的抄表系统,将促进小区智能化建设的发展。介绍了一种基于CAN总线的智能抄表系统的结构和工作原理,对该系统的关键部分CAN智能节点和嵌入式网关的软硬件设计给出了详细说明。该系统具有控制简单、扩展能力强、系统成本低等诸多优点,因而有着广阔的应用前景。
关键词:CAN总线;局域网;嵌入式网关;CAN智能节点;检测装置;智能抄表 中图分类号:TP274.2;TN915.5
文献标识码:A 文章编号:1672-4984(2008)02-0051-03
Design of
intelligent meter system based on CAN bus LI Ke-yong, RAN
Shu-yang, SHI Yi (School of Electrical Engineering and
Information,Sichuan University,Chengdu
610065,China)
Abstract: Intelligent Residential Quarter
was a totally new concept according to the requirements of the
rapidly developing information age.It still was the product of
emerging science and high technology.The development of
intelligent residential quarter-building would be promoted
with the application of metring system based on CAN bus.The
structure and principle of intelligent metering system based
on CAN bus were introduced,and these key points,CAN
intelligent node plus software/hardware design of embedded
gateway,wer stated in detail.Broad application prospects of
this system were also believed due to its many merits such as
simple control,strong expand capacity,and low cost.
Key
words: CAN bus; LAN; Embedded gateway; CAN intelligent node;
Detecting device; Intelligent metering
16.
基于MATLAB/SIMULINK交流变频调速系统的仿真研究 编辑:李燕 马 举, 刘齐宏, 冷
静 (四川大学电气信息学院,四川 成都 610065)
摘
要:交流变频调速是目前热门的研究学科之一,依据矢量控制的基本原理和方法,用MATLAB/SIMULINK模块搭建了一个转速闭环、磁链开环的交流调速系统,并对控制系统进行仿真研究,通过仿真实验得到了转速、定子线电压、定子电流、电磁转矩4个关键性能指标随时间变化的波形图,仿真结果表明了该设计的可行性,并为交流变频调速的研究开拓了新的方法。
关键词:变频调速系统;MATLAB软件;SIMULINK工具;矢量控制;正弦脉宽调制
中图分类号:TP271+.4;TP391.9
文献标识码:A 文章编号:1672-4984(2008)02-0054-03
AC frequency
conversation and timing system simulation research based on
MATLAB/SIMULINK MA Ju, LIU Qi-hong, LENG Jing (School of
Electrical Engineering and Information Science,Sichuan
University,Chengdu 610065,China)
Abstract: AC frequency
conversation timing technique is getting a lot of attentions
now. According to vector control’s principle and method, we
used MATLAB/SIMULINK module to build an AC speed regulation
system which had rotor speed closed loop and flux open loop.
Through the simulation results we obtained speed, stator line
voltage, stator current and electromagnetic torque four key
performance indicators that vary followed by the change of
time. The validity of proposed method is testified though
MATLAB simulation. New approach have exploited in the field of
technique research.
Key words: AC frequency
conversation timing system; MATLAB; SIMULINK; Vector control;
SPWM(sine pulse wide modulate)
17. 嵌入式系统的U-Boot移植分析
编辑:李燕 朱 博, 孙运强 (中北大学信息与通信工程学院,山西 太原 030051)
摘
要:U-Boot软件是一款功能强大的嵌入式系统Bootloader开发工具,Bootloader用来在启动时引导嵌入式系统,是进行嵌入式系统开发的基础。以UP_NETARM3000开发板为基础,结合移植的实践过程,分析了U-Boot移植到三星S3C44B0微处理器的详细操作。实验结果表明,移植的U-Boot可以在目标板上成功运行。通过它可以与主机通过串口通信,查看目标板内存,进行操作系统内核及文件系统的烧写等。
关键词:Bootloader;U-Boot;嵌入式系统;移植;S3C44B0
中图分类号:TP311.54;TP311.52
文献标识码:A 文章编号:1672-4984(2008)02-0057-04
U-Boot
transplantation analyses for embedded system ZHU Bo, SUN
Yun-qiang (School of Information and Communication
Engineering,North University of China,Taiyuan
030051,China)
Abstract: U-Boot software was introduced
firstly. It is a powerful developing instrument of Bootloader
in embedded system. And Bootloader is used for loading the
embedded system when the system is started up and it is the
foundation for developing embedded system. Then, taking the
UP_NETARM3000 developing board as basis, detail procedures for
transplanting U-Boot to Samsung S3C44B0 microprocessor were
analyzed with combining the practical transplant process. The
experimental results indicate that the transplanted U-Boot can
run on the target board successfully. It can communicate with
host by serial port, watch the memory on target board, and
write the kernel of operation system and file
system.
Key words: Bootloader; U-Boot; Embedded system;
Transplantation; S3C44B0
18. 基于PCI总线和CPLD的高速数据采集卡
编辑:李燕 俞忠恒, 赵世平 (四川大学测试控制工程系,四川 成都 610065)
摘
要:为了实现对传感器信号的采集和数据分析,根据PCI总线的数据采集系统的设计思想,采集系统以PCI9054和CPLD相结合来实现信号的连续采集与数据传输的控制,PCI9054实现本地端与PCI端的桥接使用户接口设计简洁,CPLD实现数据缓存控制和读取控制,实验结果表明,该数据采集系统操作简单、实时性强、性能稳定,可实现对所需信号高速连续的数据采集。
关键词:PCI总线;高速数据采集;CPLD;DMA
中图分类号:TP336;TP334.7
文献标识码:A 文章编号:1672-4984(2008)02-0061-03
A high-speed
data acquisition card based on PCI and CPLD YU Zhong-heng,
ZHAO Shi-ping (Department of Measuring and Control,Sichuan
University,Chengdu 610065,China)
Abstract: For the
purpose of sampling the signal of sensor and analyzing the
data, based on the design method of the data acquisition
system of PCI bus, the design adopted the PCI9054 and CPLD to
achieve the signal sampling and the data transfers
controlling. PCI9054 achieved the local side and the PCI side
connecting which makes the interface simple. CPLD controlled
the data reading and writing. The result of experiments show
that PCI bus data acquisition system is easy to operate, can
carry out real-time data sampling, and transfers and
performance is stable. It can realize high speed continuous
data acquisition for needed signal.
Key words: PCI bus;
High speed data acquisition; CPLD; DMA
19.
基于电话网的远程数据传输系统设计 编辑:李燕 邓 波1, 黄 劼2,
吴金蔓2 (1.电子科技大学自动化学院,四川 成都 610054;2.四川大学制造学院,四川 成都
610065)
摘
要:网络技术的高速发展深刻地改变着现代社会的生产生活方式,针对某些具体应用要求,因特网也并非最佳选择。根据某企业信息发布/查询系统的具体要求,设计了一套基于公用电话网的数据传输装置,用于传输企业内部消息等短小信息。该系统具有硬件投入小,安全性高和实时性好等特征。对于经济尚不发达的我国来说有较好的经济价值和应用前景。
关键词:数据传输装置;公用电话网;通讯协议;单片机;MT8880
中图分类号:TN916.2;TN919.6
文献标识码:A 文章编号:1672-4984(2008)02-0064-03
Data
transmitting system based on telephone network DENG Bo1,
HUANG Jie2, WU Jin-man2 (1.College of Automation,
University of Electronic Science and Technology,Chengdu
610054,China; 2.College of Manufacturing Science and
Engineering,Sichuan University,Chengdu
610065,China)
Abstract: The rapid development of
network technology has profoundly changed the way of
production and lifestyle in modern society. However, as to
some certain applications, internet is not the best choice.
Respect to a certain application, system of
publishing/inquiring information for a company,we designed a
data transmitting system based on public switched telephone
network and could be used for short message transmission in a
company. The advantages of this system are the lower
investment of hardware, much higher security and better
real-time characters. This system has a good reference value
and prospect in developing country.
Key words: Data
transmitting system; Public switched telephone network;
Communication protocol; Single chip micro-Computer;
MT8880
20. PCIe接口高速数据传输卡的驱动程序开发 编辑:李燕 杨阿锋, 吴 帅, 刘 凯,
徐 欣 (国防科技大学电子科学与工程学院,湖南 长沙 410073)
摘 要:结合自行开发的PCI
Express接口高速数据传输卡,讨论了一般PCI
Express设备驱动程序编写时所面临的主要问题和解决方案,重点从驱动程序、硬件接口以及应用程序等几个方面进行分析阐述,并比较详尽的介绍了使用WinDriver开发具有简单数据传输和DMA传输功能的驱动程序的有效方法。
关键词:PCI
Express接口;驱动程序;WinDriver;高速数据传输;DMA
中图分类号:TP334.7;TP311
文献标识码:A 文章编号:1672-4984(2008)02-0067-02
Development
of driver program for high speed data transmission adapter on
PCIe port YANG A-feng, WU Shuai, LIU Kai, XU Xin (School
of Electronic Science and Engineering,National Defence
University of Science and Technology,Changsha
410073,China)
Abstract: Some key problems and
resolutions were discussed on developments of general PCI
express device driver based on the image board of PCI Express
bus developed. Emphasis was on the analysis and explanations
of device driver, hardware port and application programs. It
also introduced an effective method of developing the device
driver with simple transmission and DMA function using
WinDriver.
Key words: PCI express port; Driver program;
WinDriver; High speed data transmission; DMA
21.
MT8880与单片机直接接口方法探讨 编辑:李燕 沈传兵, 黄 劼 (四川大学制造科学与工程学院,四川 成都
610065)
摘
要:针对双音多频信号收发芯片MT8880与单片机时序不匹配的问题,介绍了单片机与MT8880的直接接口设计方法。其特点是利用单片机的I/O接口模拟产生MT8880的特殊信号时序,直接驱动收发芯片。以单片机89C2051为实例,给出了MT8880与其连接时的硬件和软件设计。经调试,方案实现了预期的功能要求。
关键词:MT8880;接口;时序匹配;双音多频;单片机
中图分类号:TP334.7;TP368.2
文献标识码:A 文章编号:1672-4984(2008)02-0069-03
Discussion
of technique of direct interface of MT8880 and single-chip
microcomputer SHEN Chuan-bing, HUANG Jie (School of
Manufacturing Science and Engineering,Sichuan
University,Chengdu 610065,China)
Abstract: The
technique of direct interface between single-chip
microcomputer and MT8880 which could receive and send
dual-tone multifrequency signal was introduced. The feature of
the technique was that I/O port of single-chip microcomputer
was designed to simulate the time scheduling of MT8880 chip to
drive the chip directly. The hardware circuit which included
89C2051 chip and software design were given .The design
realizes the prospective functions in debugging.
Key
words: MT8880; Interface; Matching of time scheduling; DTMF;
SCM
22. μC/OS-II在SST89E564RD上的移植 编辑:李燕 李潇潇,
伍川辉 (西南交通大学机械工程学院,四川 成都 610031)
摘
要:论述了在51系列单片机中采用嵌入式实时操作系统的必要性。移植采用完整的、可移植、可固化、可裁减、源码公开的嵌入式实时操作系统μC/OS-Ⅱ,以51系列单片机SST89E564RD为例,介绍了μC/OS-Ⅱ在51系列单片机上的移植,并进行了可移植性分析,给出了详细的移植步骤和测试移植的例子。移植后的系统在成本和性能上有很强的优势,实践证明该系统运行稳定,抗干扰能力强,实时性好,具有较高的实用价值。
关键词:μC/OS-Ⅱ;嵌入式;实时;SST89E564RD;移植;
中图分类号:TP311.54;TP368.2
文献标识码:A
文章编号:1672-4984(2008)02-0072-03
Transplanting
μC/OS-Ⅱonto SST89E564RD LI Xiao-xiao, WU
Chuan-hui (College of Mechanical Engineering, Southwest
Jiaotong University,Chengdu 610031,China)
Abstract: The
necessary to apply the embedded real-time operation system to
51series single-chip computer was described. Taking 51 series
single-chip computer, SST89E564RD as an example, the
transplant of the embedded real-time operation system
μC/OS-Ⅱwhich was integrated, transplantable, curable,
reducible and open-source was introduced. The portability of
the system was analyzed, and detail transplant steps and test
example were showed. The system after transplantation had very
strong predominance in cost and capability. And it run
steadily and had strong anti-jamming ability, good real-time
ability and higher practical value, which was proved by
practices.
Key words: μC/OS-Ⅱ; Embedded; Real-time;
SST89E564RD; Transplant
23. 液体表面张力测试仪的研究
编辑:李燕 王万岗1,3, 宋文武2, 张剑虹4 (1.西南交通大学电气工程学院,四川 成都
610031;2.西华大学能源与环境工程学院,四川 成都 610039; 3.成都纺织高等专科学校,四川 成都
611731;4.成都东盛包装材料有限公司,四川 成都 611731)
摘
要:针对传统液体表面张力测试仪的不足,研发了一种基于虚拟仪器技术的液体表面张力测试仪,并详细阐述了测量原理及其系统的实现方法。测试结果表明该测试仪可实现液体表面张力自动测试,读数时间短,有效避免了人为读数误差的影响,测量结果的一致性较好。
关键词:表面张力;虚拟仪器;传感器;数据采集;低通滤波
中图分类号:TP274;O552.4+21
文献标识码:A 文章编号:1672-4984(2008)02-0075-03
Design of
liquid surface tension tester WANG Wan-gang1,3, SONG
Wen-wu2, ZHANG Jian-hong4 (1.School of Electrical
Engineering,Southwest Jiaotong University,Chengdu
610031,China; 2.School of Power and Environment,Xihua
University,Chengdu 610039,China; 3.Chengdu Textile
College,Chengdu 611731,China; 4.Chengdu Dongsheng Packing
Materials Co., Ltd,Chengdu 611731,China)
Abstract:
Based on virtual instrument technology, one kind of liquid
surface tension tester was developed to overcome those
deficiencies of traditional liquid surface tension testers.
And its measuring principle plus the method to construct this
system were described in detail. The measurement results
indicated that this instrument could be used to automatically
test liquid surface tension. And its reading time was very
short, which would reduce those errors induced by human
reading effectively. In addition, the consistency of
measurement results was very well too.
Key words:
Surface tension; Virtual instrument; Sensor; Data acquisition;
Low-pass filter
24. 智能测斜仪的设计 编辑:李燕 于艳军,
伍川辉 (西南交通大学机械工程学院,四川 成都 610031)
摘
要:采用三轴正交加速度传感器测量地球重力矢量和三轴正交磁强传感器测量地磁场矢量的测斜原理,推导出了倾斜角、方位角和工具面角的计算公式;从硬件和软件两方面对智能测斜仪进行了研究和误差分析,并对主要的误差源作了软件补偿;采用Delphi语言作为软件平台,利用多线程开发了地面监控程序。
关键词:测斜仪;加速度传感器;磁强传感器;单片机;钻井
中图分类号:TE243;TP212.12
文献标识码:A 文章编号:1672-4984(2008)02-0078-03
Design of
intelligent inclinometer for drilling measurement YU
Yan-jun, WU Chuan-hui (School of Mechanical
Engineering,Southwest Jiaotong University,Chengdu
610031,China)
Abstract: The inclinometer theories of
earth gravity vector measured by three-axis orthogonal
accelerometers and earth magnetic vector measured by
three-axis orthogonal magnetic sensors were introduced. Based
on these theories, the calculation methods of rake angle,
azimuth and tool angle were deduced. The intelligent
inclinometer was investigated from hardware aspect and
software aspect separately, its error was analyzed, and the
main errors were compensated by the software. The ground
monitor system was designed through using multithreading
technology and employing Delphi as the software
platform.
Key wards: Inclinometer; Accelerometer;
Magnetic sensor; Single chip; Drilling
25.
基于计算机的新型干簧管检测仪 编辑:李燕 袁 扬, 廖俊必 (四川大学制造学院测量与控制工程系,四川 成都
610065) 摘
要:提出了一种基于计算机的干簧管检测技术。本方法的特点是采用计算机自动检测干簧管,设置待检测的干簧管的支数,根据有效的算法判别并读取干簧管的电性能参数,并对检测得到的结果进行分析,筛选出不合格的干簧管,给出其不合格的原因。这种检测方法比传统的人工检测更加可靠,大大提高了检测效率和检测精度,具有广阔的应用前景。
关键词:干簧管;检测技术;计算机;有效的算法;电性能参数
中图分类号:TP274+.4;TM585.4
文献标识码:A 文章编号:1672-4984(2008)02-0081-04
New reed
switch inspector based on computer YUAN Yang, LIAO
Jun-bi (Department of Measuring Technology and Control
Engineering,Sichuan University,Chengdu
610065,China)
Abstract: A new inspecting technology
based on computer for reed switches was proposed. The
advantage of this technology is that the computer can inspect
the reed switch automatically. The total number of reed
switches to be measured can be set, the electronic parameter
of them can be discerned and read based on effective
arithmetic, and the measurement results can be analyzed to
filter unqualified reed switches and provide the reasons for
unqualified. This technology is more reliable than the
traditional manual inspection, it has improved the inspecting
efficiency and precision obviously, and it is with brilliant
future.
Key wards: Reed switch; Inspecting technology;
Computer; Effective arithmetic; Electronic
parameter
26. 茶叶中稀土元素的电感耦合等离子体质谱检测方法研究 编辑:李燕 谭和平,
张苏敏, 陈能武 (中国测试技术研究院,四川 成都 610021)
摘
要:针对目前茶叶中稀土检测方法中存在的样品前处理复杂、灵敏度低等问题,
研究了茶叶中15种稀土元素的检测方法。该方法采用微波消解方法处理茶叶样品,用电感耦合等离子体质谱同时测定15种元素,测定茶叶标准物质GBW
07605和GBW
10016表明,各元素结果与标准值一致。对茶叶中稀土元素的实际应用显示,使用该方法简单、快捷、准确,可以获得满意结果。
关键词:茶叶;稀土元素;检测;ICP-MS
中图分类号:TS272.5;TH843
文献标识码:A 文章编号:1672-4984(2008)02-0085-04
Rear earth
element determination in tea by inductively coupled plasma
mass spectrum TAN He-ping, ZHANG Su-min, CHEN
Neng-wu (National Institute of Measurement and Testing
Technology,Chengdu 610021,China)
Abstract: One new
method has been developed for the determination of trace rare
earth elements in tea by ICP-MS to overcome the problems such
as complex sample preparation, low sensitivity and so on when
other present methods were used. This method uses microwave to
digest tea samples, and uses inductively coupled plasma mass
spectrum (ICP-MS) to determine fifteen rear earth elements
simultaneously. The analysis results of certified tea
reference materials, GBW 07605 and GBW10016 showed that the
results of all elements were in good agreement with their
certified values. Also, it could get satisfactory results when
this proposed method was applied to tea analysis. All of the
above indicates that this method is simple, rapid and
reliable.
Key words: Tea; Rare earth elements;
Determination; ICP-MS
27. 应用一种微波消解液直接测定食品中7种元素
编辑:李燕 李 波1, 崔杰华1, 王颜红1, 王俊伟2, 王 伟3 (1.中国科学院沈阳应用生态研究所,辽宁
沈阳 110016;2.沈阳农业大学,辽宁 沈阳 110161;3.沈阳药科大学,辽宁 沈阳
110016)
摘
要:针对食品检测前处理时间和检测周期过长的难题,用硝酸及双氧水作为消解溶剂,在设定的微波消解条件下,可以将样品消解完全,消解液中加入硫脲和L盐酸,不需任何处理可直接进行砷等7种元素的测定。硫脲将高价砷和汞离子还原为三价砷和汞原子,而对其它元素无影响,从而实现氢化物发生原子荧光法同时测定食品中砷、汞的含量,原子吸收火焰法测定食品中铜、锌、铁、镁、锰的含量。通过测定标准物质和加标回收实验,对方法进行验证,结果表明,方法简便快速、准确度与精密度令人满意。
关键词:食品;微波消解;原子荧光光谱法;原子吸收光谱法;金属元素
中图分类号:TS207.3;TS207.5+1
文献标识码:A 文章编号:1672-4984(2008)02-0089-03
Direct
determinations of seven elements in food with one microwave
digestion solution LI Bo1, CUI Jie-hua1, WANG Yan-hong1,
WANG Jun-wei2, WANG Wei3 (1.Institute of Applied
Ecology,Chinese Academy of Sciences,Shengyang
110016,China; 2.Shenyang Agricultural University,Shengyang
110161,China; 3.Shenyang Pharmaceutical
University,Shengyang 110016,China)
Abstract: According
to the problem of the long processing time and testing cycle
for food measurement, the feasibility of using one microwave
digestion solution to investigate seven elements in food was
discussed. with the microwave digesting procedure of this
study, the samples were digested completely with nitric acid
and hydrogen peroxide. After thiourea and hydrochloric acid
were added to the digestion solution, seven elements can be
determined without any other pretreatments.Thiourea could
reduce highly charged As and Hg ions into As(Ⅲ) and Hg atoms
respectively, and it didn't affect other element
determinations. Thus, the contents of As and Hg in food could
be determined with hydride generation-atomic fluorescence
spectrometry(HG-AFS) simultaneously, and those of
Cu、Zn、Fe、Mg、Plus Mn could be determined with atomic absorption
spectrometry(AAS). The method accuracies were confirmed by
standard samples analysis and recovery experiments. The
results indicate this method is simple, rapid, accuracy and
repeatable,and it is suitable for the content determinations
of these seven elements in food.
Key words: Food;
Microwave digestion; HG-AFS; AAS; Metallic element
28.
高效液相色谱法测定食醋中苯甲酸和山梨酸 编辑:李燕 张卫佳, 蒋其斌, 夏天兰 (西华大学生物工程学院,四川
成都 610039)
摘
要:研究了一种用蒸馏法提取、高效液相色谱法测定食醋中苯甲酸和山梨酸的方法。用蒸馏法提取食醋中的苯甲酸和山梨酸。收集蒸馏液直接进行液相色谱分析。苯甲酸和山梨酸标准溶液在0.25
mg/L~100 mg/L内线性良好,其线性相关系数分别为0.999 9和0.999
8,加标回收率为95.0%~105.2%,测量结果的相对标准偏差为2.46%~3.45%。该方法用于测定食醋样品中的苯甲酸、山梨酸,检测下限均为0.5
mg/L。
关键词:高效液相色谱法;食醋;苯甲酸;山梨酸;蒸馏
中图分类号:TH833;TS264.2+2
文献标识码:A
文章编号:1672-4984(2008)02-0092-03
Determination of
benzoic acid and sorbic acid in vinegar by high performance
liquid chromatography ZHANG Wei-jia, JIANG Qi-bin, XIA
Tian-lan (College of Biology Engineering,Xihua
University,Chengdu 610039,China)
Abstract: Benzoic acid
and sorbic acid in vinegar were extracted by distillation and
determined by high perform liquid chromatography(HPLC). The
calibration curves presented good linear relationship in the
range of 0.25 mg/L~100 mg/L and the correlation coefficients
were 0.9 999 and 0.9 998 for benzoic acid and sorbic acid
respectively. Recoveries of benzoic acid and sorbic acid added
were 95.0%~105.2%. The opposite deviation of testing results
is 2.46%~3.45%. Detection limit of the method for benzoic acid
and sorbic acid was 0.5 mg/L.
Key words: High
performance liquid chromatography; Vinegar; Benzoic acid;
Sorbic acid; Distillation
29. 分光光度法测定野蒜中硒和锗的含量
编辑:李燕 王安亭, 潘吉平 (洛阳理工学院环境与化学系,河南 洛阳 471023)
摘
要:在盐酸介质中,硒(IV)可氧化Iˉ生成I3ˉ进而与结晶紫形成离子缔合物。而在浓盐酸中,以苯基荧光酮为显色剂,苯基荧光酮与锗(IV)离子生成络合物。以此为依据,用分光光度法测定野蒜中硒与锗的含量。此方法具有较高的灵敏度和选择性,操作快速简便,试剂较安全易得,测定结果可靠,加标回收率在99.27%~99.68%,具有很大的发展空间。
关键词:盐酸;野蒜;硒;锗;分光光度法
中图分类号:O657.3;S633.4
文献标识码:A
文章编号:1672-4984(2008)02-0095-02
英文版出问题了,无法显示网页。 Content
determinations of Se and Ge in wild garlic by
spectrophotometry WANG An-ting, PAN Ji-Ping (Department
of Environment and Chemistry,Luoyang University of Science and
Technology,Luoyang 471023,China)
Abstract: In the
medium of hydrochloric acid, I- can be oxidized into I3- by
Se(IV), and I3- reacts with crystal violet to form ion
complex. And in concentrated hydrochloric acid, when
phenylfluorone is used as chromogenic reagent, the chromogenic
reagent reacts with Ge (IV) ions to form complex. According to
the above, the contents of Se (IV) and Ge (IV) in the wild
garlic were determined with spectrophotometry. And some common
ions were used as interferences to check their effects on the
method. The results indicate that this method has high
sensitivity and selectivity, its operation is simple and
rapid, the reagents are safe and easy to get, its measurement
results are credible, and the recoveries are from 99.27% to
99.68%. All these tell its good prospects.
Key words:
Hydrochloric acid; Wild garlic; Se; Ge;
Spectrophotometry
30. HPLC检测猪肉组织中3种氟喹诺酮类药物残留
编辑:李燕 郑晓航, 赖碧清, 黄 裕, 李秋剑 (深圳市肉品卫生检验所实验室,广东 深圳
518005)
摘
要:建立了HPLC-FLD同时检测猪肉组织中环丙沙星、单诺沙星、沙拉沙星等3种氟喹诺酮类药物。猪肉组织样品用磷酸盐水溶液提取,在C18固相萃取柱净化,采用乙腈-磷酸/三乙胺溶液作为流动相,荧光检测器检测(λex=280
nm,λem=450 nm)。这3种氟喹诺酮标准曲线的线性回归系数均在0.999
9以上,检测线性范围环丙沙星、沙拉沙星为(2.5~500)μg/kg,单诺沙星为(0.5~100)μg/kg。猪瘦肉组织中这3种氟喹诺酮的平均加标回收率为79.9%~93.6%;相对标准偏差分别为2.54%、2.60%、2.51%。环丙沙星、沙拉沙星的最低检测限为2.5
μg/kg,单诺沙星的最低检测限为0.5
μg/kg。
关键词:氟喹诺酮类药;猪肉组织;HPLC
中图分类号:TS251.5+1;TQ464.4
文献标识码:A 文章编号:1672-4984(2008)02-0097-03
Simultaneous
determination of three fluoroquinolone residues in pork by
HPLC ZHENG Xiao-hang, LAI Bi-qing, HUANG Yu, LI
Qiu-jian (Shenzhen Inspection Institute of Meat
Hygiene,Shenzhen 518005,China)
Abstract: Three
fluoroquinolone residues including ciprofloxacin,
danofloxacin, sarafloxacin in pork were simultaneously
determined by HPLC (High performance liquid chromatography)
with fluorescence detection (FLD). The samples were extracted
with phosphate aqueous solution and purified with C18 solid
phase extraction column. Then, the extractions were separated
with acetonitrile-phosphorous acid/tri-ethylamine system as
the mobile phase, and detected by FLD (λex=280 nm, λem=450
nm). The linear ranges for ciprofloxacin and sarafloxacin were
(2.5~500)μg/kg, however that for danofloxacin was
(0.5~100)μg/kg. All of their correlation coefficients were
larger than 0.999 9, and the average recoveries for those
three fluoroquinolone residues in pork were from 79.9% to
93.6%. Their relative standard deviations are 2.54%, 2.60%,
2.51% respectively. And the LODs for ciprofloxacin and
sarafloxacin were 2.5 μg/kg, however that for danofloxacin was
0.5 μg/kg.
Key words:
Fluoroquinolone;Pork;HPLC
31. 离子色谱法在饮用水溴酸盐分析中的应用
编辑:李燕 罗海英1, 郭新东1, 吴玉銮1, 杜志峰1,
王永华2 (1.广州市产品质量监督检验所国家加工食品质量监督检验中心,广东 广州
510110; 2.华南理工大学轻工与食品学院,广东 广州 510641)
摘
要:采用抑制电导离子色谱法(IC)检测饮用水中的痕量溴酸盐。对样品中高浓度的干扰组分氯离子进行了处理,避免其对测定的影响。溴酸盐浓度在5
ng/mL~100 ng/mL范围内具有良好的线性关系,相关系数为0.999 9,方法的定量限为2
ng/mL(S/N=10),样品加标回收率大于91.6%.该方法经试验,成功地试用于各种饮用水中溴酸盐含量的测定。
关键词:离子色谱;饮用水;溴酸盐;分析;质量检验
中图分类号:TS275.1;TQ222.2+15
文献标识码:A 文章编号:1672-4984(2008)02-0100-03
Application
of ion chromatography to determine bromate in water LUO
Hai-ying1, GUO Xin-dong1, WU Yu-luan1, DU Zhi-feng1, WANG
Yong-hua2 (1.Institute of Guangzhou Product Quality
Supervision and Testing,National Centre for Quality
Supervision and Testing of Processed Food,Guangzhou
510110,China; 2.College of Light Industry and Food
Engineering, South China University of Technology,Guangzhou
510641,China)
Abstract: Trace bromate in drinking water
was determined by ion chromatography with suppressed
conductivity detector. To reduce effect of high concentration
interference component on analysis result, chloride was
disposed. Those results show when the concentration of bromate
is from 5 ng/ml to 100 ng/ml, linear relationship of this
method is very well and its regression coefficient is 0.999 9.
Furthermore, quantitative limit of this method was 2 ng/mL
when S/N was equal to 10, and recovery of it was lager than
91.6 %. After testing, it is proved that this method could be
used to determine bromate content in any drinking
water.
Key words: Ion chromatography;Drinking
water;Bromate;Analysis;Quality test
32.
高效液相色谱法测定复原乳中糠氨酸的含量 编辑:李燕 付洪涛1, 欧阳华学2,
雷绍荣2 (1.雅安职业技术学院,四川 雅安 625000;2.农业部食品质量监督检验测试中心,四川 成都
610066)
摘 要:建立了测定复原乳中糠氨酸含量的高效液相色谱分析方法。复原乳中的糠氨酸用6.0
mol/L盐酸水解后,经Discovery
C18色谱柱分离,采用紫外检测器检测。本方法复原乳中的糠氨酸在(1.0~20.0)mg/L质量浓度范围内呈良好的线性关系,相关系数r≥0.999
2。方法的重复性好,RSD不大于1.09%。加标回收率为92.0%~96.2%,方法的检测限(s/N=3)为0.5
mg/kg。本文所建立的方法简便、快速,适用于复原乳中糠氨酸含量的测定。
关键词:高效液相色谱;糠氨酸;复原乳
中图分类号:TS252.51;TQ246.3+7
文献标识码:A
文章编号:1672-4984(2008)02-0103-02
Determination of
furosine in reconstituted milk by high performance liquid
chromatography FU Hong-tao1, OUYANG Hua-xue2, LEI
Shao-rong2 (1.Ya’an Vocational College,Ya’an
625000,China; 2.Chengdu Food Quality Supervision and
Testing Center of Ministry of Agriculture,Chengdu
610066,China)
Abstract: A rapid analytical method for
the determination of furosine in reconstituted milk by high
performance liquid chromatography(HPLC) has been developed.
The sample was hydrolyzed with 6.0 mol/L hydrochloric acid,
then its hydrolysates were separated with Discovery C18 column
and with aqueous acetonitrile solution as mobile phase, and
they were detected by UV detector. The results indicate that
the linear correlation between the furosine concentration and
the peak area is excellent according to its correlation
coefficient which is larger than 0.999 2. The repeatability of
this method is very well according to its relative standard
deviation(RSD) which is less than 1.09%. And the results also
show that the spiked recoveries were 92.0%~96.2%, and the
detection limit(s/N=3) was 0.5 mg/kg. According to the above,
this method is rapid and easy to use, and it is suitable to
determine the furosine content in reconstituted
milk.
Key words: High performance liquid
chromatography; Furosine; Reconstituted milk
33.
基于短时傅里叶变换的油膜振荡故障识别 编辑:李燕 刘文彬, 郭 瑜, 郑华文 (昆明理工大学机电工程学院,云南
昆明 650093)
摘
要:油膜振荡具有典型的“惯性效应”,应用短时傅里叶变换对转子降速信号进行故障分析,不仅提取出了故障特征信息而且监测到其特有的“惯性效应”,从而识别出油膜振荡。试验中,通过转子实验台模拟油膜涡动及油膜振荡故障,并基于LabVIEW平台开发出了基于短时傅里叶变换的故障分析系统,进行故障特征识别,得到了较好的分析结果。实践证明:用基于短时傅里叶变换的瀑布图来分析非平稳信号,具有分辨率高、特征提取结果更为精确的特点。
关键词:油膜涡动;油膜振荡;短时傅里叶变换;瀑布图;转子实验台
中图分类号:TH115;TH825
文献标识码:A 文章编号:1672-4984(2008)02-0105-03
Oil film
shake fault identification based on short-time Fourier
transform LIU Wen-bin, GUO Yu, ZHENG Hua-wen (School of
Mechanical Electrical Engineering,Kunming University of
Science and Technology, Kunming 650093,China)
Abstract:
Oil film vibration have typical “inertia effect”. Coast-down
test of a rotor was analyzed based on Short-Time Fourier
Transform. Fault features could be extracted, and the“inertia
effect” could be identified too. In the test, oil whirl and
oil vibration were test by a rotor test rig. Fault analysis
system based on LabVIEW was developed. Good result is obtained
for fault identification. It proved that using the Waterfall
based on Short-Time Fourier Transform to analyze non-balanced
signal has many advantages such as high resolving power, more
precision of results getting.
Key words: Oil whirl; Oil
vibration; Short-time Fourier Transform; Waterfall; Rotor test
rig
34. 电涡流底盘测功机模糊PID控制算法研究 编辑:李燕 李树珉1, 李 琨2, 武朋辉1
(1.军事交通学院,天津 300161;2.92076部队,北京 102202)
摘
要:介绍了底盘测功机用电涡流测功器的工作过程,分析了控制系统模型,利用模糊PID控制技术对系统各控制器进行设计,并通过MATLAB仿真给出了系统控制模式的控制效果。经试验验证,控制算法控制效果良好,完全满足汽车底盘测功机对控制品质的要求。
关键词:底盘测功机;电涡流测功器;模糊PID控制
中图分类号:TH871.7;TP273+.4
文献标识码:A 文章编号:1672-4984(2008)02-0108-04
Study of
control algorithm of chassis dynamometer by Fuzzy-PID
control LI Shu-min1, LI Kun2, WU Peng-hui1 (1.Academy of
Military Traffic,Tianjin 300161,China;2.PLA 92076 Unit,Beijing
102202,China)
Abstract: Work process of the eddy
current dynamometer on chassis dynamometer was introduced . We
analyzed the model of the control system and designed the
controller on the fuzzy PID control technology. The control
result of the control system was given by MATLAB simulation.
Experiments show that the control system is excellent and the
control performance for vehicle power testing satisfies the
demand of quality control.
Key words: Chassis
dynamometer; Eddy current dynamometer; Fuzzy PID
control
35. 高强漆包线在桥梁荷载试验中的应用实例 编辑:李燕 杜 毅1, 李贵平1, 黎
洪2 (1.贵州大学土木建筑工程学院,贵州 贵阳 550003;2.贵州省计量测试院,贵州 贵阳
550001)
摘
要:桥梁荷载试验现场测试环境的变化,对测量结果影响较大,在试验模拟室外温度变化对现场应变结果测量影响研究的基础上,提出采用高强漆包线替代传统的胶质电线、屏蔽电缆应用到桥梁荷载试验中,并进行了多个工程实例,通过大量实测的数据说明高强漆包线替代传统的胶质电线、屏蔽电缆应用到桥梁荷载试验中是可行的,测试效果是明显的。高强漆包线作为电阻应变测试系统中桥臂导线比胶质导线(电线)稳定,高强漆包线不仅可以在桥梁结构应变测量中应用,也可以应用到机械制造、土木工程等领域,可通过应变测试对力、压力、扭矩、位移、温度等物理量进行测量。具有一定的推广使用价值。
关键词:高强漆包线;应变;温度变化;桥梁荷载试验
中图分类号:TU973+.211;TM751
文献标识码:A 文章编号:1672-4984(2008)02-0112-04
Application
of compressed enameled wire on bridge load testing
experiment DU Yi1, LI Gui-ping1, LI Hong2 (1.Civil
Engineering & Architecture School of Guizhou
University,Guiyang 550003,China;2.Guizhou Institute of
Metrology and Testing,Guiyang 550001,China)
Abstract:
The measurement results of the bridge load testing experiment
were heavily influenced by the field environment. Based on the
field test results of strain which were affected by simulated
outside temperature, it was proposed that the compressed
enameled wire could replace the traditional rubberized wire
and shielded cable in bridge load testing experiments. This
was supported by abundant data collected from the in-situ
measurements and the results of these measurements were
positive. As bridge-arm lead in the electrical resistance
strain testing system, the compressed enameled wire was more
stable than the rubberized wire. Also, the compressed enameled
wire could be applied to the fields of machinery, civil
engineering and so on, not to say its application of strain
measurements in bridge structural. And according to the
results of strain, other physical data such as force,
pressure, torque, displacement and temperature can be
acquired. All the above indicates that the compressed enameled
wire is worthy of widespread applications.
Key words:
Compressed enameled wire; Strain; Temperature change; Bridge
load testing experiment
36. 基于模糊PID控制的配料秤系统的实现
编辑:李燕 李牡丹, 李丽宏, 雷张伟 (太原理工大学,山西 太原 030024)
摘
要:针对目前配料秤系统中采用传统PID控制的不足,提出了一种基于模糊PID控制的方法,将模糊控制技术与传统的PID控制技术结合起来,共同应用于实际系统的调节当中,误差较小时采用PID控制,误差较大时采用模糊PID控制,
大大提高了系统抗外部干扰和适应内部参数变化的鲁棒性,有效地解决了系统运行中误差不稳定和动态特性不理想的问题。
关键词:PID控制;模糊控制;模糊控制器;模糊PID;配料秤系统
中图分类号:TP273+.4;TH715.1+92
文献标识码:A 文章编号:1672-4984(2008)02-0116-04
Realization
of proportioning weighing system based on Fuzzy-PID
control LI Mu-dan1, LI Li-hong1, LEI Zhang-wei1 (Taiyuan
University of Technology,Taiyuan
030024,China)
Abstract: According to the disadvantages
of traditional PID controller in the proportioning weighing
system, a method based on fuzzy PID controller was discussed.
The method combined fuzzy control technology with traditional
PID algorithm and applied them to practical system. Less error
with PID controller and large error with fuzzy PID controller
could greatly enhance the robust of system against external
interference and adapting to change within the parameters. It
could solve the problem of unstable error and dynamic
performance in operation of system effectively.
Key
words: PID control;Fuzzy control;Fuzzy controller;Fuzzy
PID;Proportioning weighing system
38. 雷达测速标定装置信号调理电路的研究
编辑:李燕 全 磊1, 廉飞宇2, 张 元2 (1.郑州大学信息工程学院,河南 郑州
450052;2.河南工业大学,河南 郑州 450052)
摘
要:为了克服现有雷达测速标定装置存在的不足,利用非接触光电传感器测量车速,对雷达测速仪进行标定。由于梳状光电传感器所采集的地面信号幅值变化大,其中还产生随机的相对于基波的高、低频干扰等不足,为此针对该光电传感器的工作原理及信号特点,基于锁相环CD4046设计了适合于处理该信号的具体电路。试验证明,该电路跟踪速度快,捕捉时间短。
关键词:雷达测速标定;光电传感器;锁相环;滤波器;跟踪
中图分类号:TM938.8,TP216
文献标识码:A 文章编号:1672-4984(2008)02-0120-04
Study on
signal conditioning circuits for calibration device of
velocity measuring radar QUAN Lei1, LIAN Fei-yu2, ZHANG
Yuan2 (1.College of Information Engineering,Zhengzhou
University,Zhengzhou 450052,China;2.Henan University of
Technology,Zhengzhou 450052,China)
Abstract: To
overcome deficiencies of current calibration device for
velocity measuring radars, non-contact photoelectric sensor
was used to measure the speed of vehicles and calibrate
velocity measuring radars. Signals collected by comb shape
photo-electric sensor changed in amplitude greatly and
contained high and low frequency interferencs to the
fundamental wave randomly. According to the characteristic and
principle of this sensor, circuit could be used to process
signals producted by the sensor was designed based on
phase-locked loop technology, CD4046. The experimental results
proved that this circuit was characterized by its fast
tracking response and short capturing time.
Key words:
Velocity measurement radar calibration; Photo-electric sensor;
Phase-locked loop; Filter; Track
39. 基于小波的滚动轴承故障诊断
编辑:李燕 谢 晖, 傅 攀, 陈 侃 (西南交通大学机械工程学院,四川 成都 610031)
摘
要:滚动轴承是机械设备中极易损坏的零部件。旋转机械的故障有百分之三十是由轴承故障引起的,因此引入轴承故障诊断对于机械化生产和作业来说是十分必要的。在对轴承故障的机理和特征全面了解的基础上,利用了离散小波变换对不同工矿下的原始信号进行分解,然后对小波分解出的近似和细节信号进行Hilbert变换,利用得出的信号可以较好地提取故障特征。
关键词:离散小波变换;Hilbert变换;故障特征;
故障诊断;数据采集
中图分类号:TH133.33;TP277 文献标识码:A
文章编号:1672-4984(2008)02-0124-03
Fault diagnosis of
rolling bearings based on wavelet XIE Hui, FU Pan, CHEN
Kan (School of Mechanical and Engineering,Southwest
Jiaotong University,Chengdu 610031,China)
Abstract:
Rolling bearing is an easily damaged part of mechanical
equipments. It was reported that 30% rotating machinery faults
were caused by the faults of rolling bearings, therefore, it
is very necessary to introduce fault diagnosis of rolling
bearings into those fields of mechanized production and
operations. According to comprehensive understanding of the
mechanism and characteristics for faults of rolling bearings,
those fault features were extracted well from those Hilbert
transform signals transformed from the approximate signals and
details which were the results of decomposing the initial
signals in different work conditions through DWT (Discrete
Wavelet Transform).
Key words: DWT;Hilbert transform;
Failure character; Fault diagnosis; Data
acquisition
40. 大型发电机定子局部放电在线监测系统的研究 编辑:李燕 蒋远东1,
陈庆国2, 王发兴3, 谢 东1 (1.广西电网公司钦州供电局,广西 钦州 535000;2.哈尔滨理工大学,黑龙江
哈尔滨 150040;3.广西电网公司梧州供电局,广西 梧州543002)
摘
要:局部放电测量是诊断定子绕组绝缘最为有效的方法的之一。结合以往的科研实践,且基于磁耦合原理及小波去噪技术,研制出了一套大型发电机定子绕组局部放电在线监测系统,该系统具有工作频带宽、抗干扰能力强、灵敏度高等特点。采用高压电机定子绕组对该系统进行测试,测试结果表明,该系统能准确提取出局部放电脉冲的特征量,满足定子绝缘状况诊断的要求。
关键词:在线监测;局部放电;电流传感器;大型发电机;传感器
中图分类号:TM61;TP277
文献标识码:A 文章编号:1672-4984(2008)02-0127-04
On-line PD
monitoring system development for large generator
stator JIANG Yuan-dong1, CHEN Qing-guo2, WANG Fa-xing3, XIE
Dong1 (1.Qinzhou Power Supply Bureau,Guangxi Power Grid
Corporation,Qinzhou 535000,China;2.Harbin University of
Science and Technology,Harbin 150040,China; 3.Wuzhou Power
Supply Bureau,Guangxi Power Grid Corporation,Wuzhou
543002,China)
Abstract: On-line partial discharge(PD)
monitoring is one of the most effective methods for winding
insulation diagnosis of large generator stator. According to
the past research, magnetic coupling mechanism and wavelet
de-noising technology, a new type on-line PD monitoring system
for winding insulation diagnosis of large generator stator was
developed. The system has characteristics such as
wider
|