一种容腔效应标定技术及其在高频响动态探针中的应用

李继超; 王偲臣; 林峰; 聂超群; ShoenMP

一种容腔效应标定技术及其在高频响动态探针中的应用

1.
中国科学院工程热物理研究所, 北京 100190
2.
中国科学院研究生院, 北京 100190
3.
College of Engineering, Idaho State University, Pocatello, USA

基金项目: 国家自然科学基金(50736007)

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出版历程
- 收稿日期: 2011-01-10
- 修回日期: 2011-03-07
- 刊出日期: 2011-12-28

A technique to calibrate cavity effect in unsteady pressure probes with high frequency response

1.
Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
2.
Graduate University of Chinese Academy of Sciences, Beijing 100190, China
3.
College of Engineering, Idaho State University, Pocatello, USA

摘要

摘要: 介绍一种容腔效应标定方法,以理论模型推导与实验验证相结合的方式,完成了对高频响动态探针的动态标定,并通过ARMAX(自动回归滑动平均)模型辨识得到了容腔的传递函数.结果表明该方法简单可行,能够很好地通过探针的动态响应信号来确定探针容腔的传递函数,从而确定测量信号和真实信号之间的关系,对今后考虑容腔效应的动态标定提供了参考.
- 高频响动态探针 /
- 容腔效应 /
- 阶跃响应 /
- ARMAX(自动回归滑动平均) /
- 模型辨识
Abstract: A technique to calibrate cavity effects was introduced.By combining a simplified theoretical model with experimental verification,the modeling of the transfer function for the pressure probe was established.An ARMAX(autoregressive-moving average with exogenous input) model was used as the base structure of the cavity system and its parameters were identified from experimental data.It is demonstrated that despite its simplicity,this method can well capture the transfer function for the cavity based on the input/output signals,from which the relationship of the true signal and measuring signal can be obtained.This calibration technique is simple and practical,and can be of great value in many applications.
- dynamic probe with high response frequency /
- cavity effect /
- step response /
- ARMAX(autoregressive-moving average with exogenous input) /
- model identification

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参考文献(12)

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