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[1]刘超,冯斌,王立欣,等.火箭发动机测试系统热电偶通路抗干扰技术[J].火箭推进,2009,35(03):55-60.
　Liu Cha0,Feng Bin,Wang Lixinl,et al.The anti-interference technology of thermocouple channel used in rocket engine test system[J].Journal of Rocket Propulsion,2009,35(03):55-60.

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火箭发动机测试系统热电偶通路抗干扰技术

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V] 卷: 35 期数: 2009年03期页码: 55-60 栏目: 测控与试验出版日期: 2009-06-30

Title:: The anti-interference technology of thermocouple channel used in rocket engine test system

作者:: 刘超¹; 冯斌²; 王立欣¹; 张近民¹; 1哈尔滨工业大学电气工程及其自动化学院，黑龙江哈尔滨150001； 2北京航天试验技术研究所，北京100074

Author(s):: Liu Cha0¹; Feng Bin²; Wang Lixinl; Zhang Jinminl; 1 School of Electrical Engineering and Automation，Harbin Institute of Technology，Harbin 150001，China 2 Beijing Aerospace Test Technology Institute，Beijing 100074，China

关键词:: 热电偶通路; 混合接地; EMI滤波器; 隔离模块

Keywords:: thermocouple channel; mix——earth; EMI filter; isolation module

分类号:: V416.6

文献标志码:: A

摘要:: 热电偶温度采集通道是火箭发动机测试系统中重要的一部分．研究其抗扰技术有助于提高整个系统的电磁兼容性能。介绍了热电偶温度采集通路的系统结构。分析了通路中容易受干扰的部位。并针对热电偶通路中比较容易受到的EVI"干扰提出了混合接地策略、加入EMI滤波器和线性光耦隔离模块等三种有效的抑制措施。最后，对热电偶通路中一些通用的抗干扰措施及需要注意的事项进行了论述。通过应用这些抗干扰措施，提高了整个系统抗扰度的作用。

Abstract:: The thermocouple data collection channel，used for temperature measuring，is an im· portant part of rocket engine test system．Researching its immunity technology is helpful to improve the electromagnetic compatibility of the whole system．The structure of the thermoeouple data collec— tion channel，the analyses on the sensitive points of the channel are introduced in this paper．The generating mechanism and characteristic of EFT interference which is easily coupled into the thermoeouple channel are also presented in this paper．Three methods including mixed-ground，adding EMl filter，adding isolation module，are used to reduce the intensity of core-wired coupling EFT interference， and the system anti-interference capability is improved．At last，some other anti-interfer-ence measures and attention points are also introduced．All of these provide some valuable references for anti-interference design of thermocouple channel．

参考文献/References:

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备注/Memo

收稿日期：2009-03—18；修回日期：2009-04—20。作者简介：刘超(1982一)，男，博士，研究领域为电磁兼容。

更新日期/Last Update: 1900-01-01