传感技术学报2016，Vol.29Issue(10)：1509-1515,7.DOI:10.3969/j.issn.1004-1699.2016.10.008
高温电容位移传感器的设计与实验研究
Study on Design and Experimentation of Capacitance Displacement Sensor Used in High-Temperature Environment
摘要
Abstract
For the purpose of measuring the relative deformation between the bearing chock and the outer casing in an aero engine accurately,a capacitance displacement sensor used in high temperature environment is developed, which is principally made up of high-temperature alloy,alumina ceramics and special cable etc. Therefore,the mea⁃surement of this relative deformation can be achieved by installing the sensor in the supported slab of the casing. Based on the double shielded structure of the sensor and the driving cable technology,the interference signal may decrease greatly. In the paper,the simulation analysis of the sensor is executed to verify the rationality of the struc⁃ture firstly. And then,an experimental platform is established to execute calibration and performance testing of the sensor,as well as the verification at high temperature. As the experiments show,the capacitance displacement sen⁃sor used in high temperature environment can realize accurate measurement in the range from 0 to 2.0 mm,whose measuring error is smaller than 0.02 mm. Also,the sensor can work stably from room temperature to 500℃,which meets the application requirements.关键词
航空发动机/电容位移传感器/仿真/高温验证Key words
aero engine/capacitance displacement sensor/simulation/high-temperature verification分类
信息技术与安全科学引用本文复制引用
毕超,郭霞,徐昌语,杨辉..高温电容位移传感器的设计与实验研究[J].传感技术学报,2016,29(10):1509-1515,7.基金项目
国家科技重大专项项目 （）
