Characters of sensor for aero-engine gas path electrostatic monitoring

WEN Zhen-hua; ZUO Hong-fu; WANG Hua; LI Yao-hua

doi:10.13873/j.1000-97872008.11.002

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Characters of sensor for aero-engine gas path electrostatic monitoring

更新时间：2025-09-11

- Characters of sensor for aero-engine gas path electrostatic monitoring
- Vol. 27, Issue 11, Pages: 28-31(2008)
- 作者机构：
  
  南京航空航天大学民航学院
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872008.11.002
  CLC： V231
- Published：2008
- 稿件说明：
移动端阅览
[1]文振华,左洪福,王华,李耀华.航空发动机气路静电监测传感器特性[J].传感器与微系统,2008,27(11):28-31.

WEN Zhen-hua, ZUO Hong-fu, WANG Hua, et al. Characters of sensor for aero-engine gas path electrostatic monitoring[J]. 2008, 27(11): 28-31.
[1]文振华,左洪福,王华,李耀华.航空发动机气路静电监测传感器特性[J].传感器与微系统,2008,27(11):28-31. DOI： 10.13873/j.1000-97872008.11.002.

WEN Zhen-hua, ZUO Hong-fu, WANG Hua, et al. Characters of sensor for aero-engine gas path electrostatic monitoring[J]. 2008, 27(11): 28-31. DOI： 10.13873/j.1000-97872008.11.002.

摘要

分析了发动机气路静电监测的原理

对监测系统关键器件—静电传感器的灵敏度分布和频率响应特性进行了研究

通过数值模拟和曲线拟合的方法确定了传感器的灵敏度分布函数

进而推导了传感器的频率响应函数

分析了传感器探极半径和对灵敏度分布与频率响应影响

以及颗粒运动速度对频率响应的影响。理论分析和模拟实验结果表明:静电传感器在空域和时域内均为低通滤波器

半径大的传感器灵敏度较高

空域频谱和时域频谱较宽。颗粒运动速度越快

传感器输出信号的频带越宽

但幅值相对越小。

Abstract

The principle of engine gas path electrostatic monitoring technology is analyzed

research on sensitivity distribution and frequency response of key device of the monitoring system—electrostatic sensor is made.Numerical simulation and curve fitting are applied to acquire sensitivity distribution function

then frequency response function is deduced.The effect of various sensor radius and particle moving velocity on sensitivity distribution and frequency response is analyzed.Theoretic analysis and experimental results show the electrostatic sensor acts as a low-pass filter in spatial domain and time domain

and sensor with larger radius has characteristics of higher sensitivity and wider frequency range in spatial domain and time domain.The higher speed of particle moving

the wider frequency bandwidth of signal has.

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references

基于图像自动测量的航空发动机故障检测技术研究 [J]. 张勇,刘冠军,邱静. 机械科学与技术 . 2008(02)

基于静电传感器空间滤波效应的颗粒速度测量 [J]. 许传龙,汤光华,黄键,杨道业,周宾,王式民. 化工学报 . 2007(01)

某典型振动条件下发动机点火试验研究 [J]. 利凤祥,李越森,周为民. 航空动力学报 . 2002(05)

颗粒分散科学与技术[M]. 化学工业出版社 , 任俊,沈健,卢寿慈著, 2005

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