信号调理器对动态测试的影响  

Influence of Signal Conditioner to Dynamic Measurement

作　　者：蔡菁[1] 史博[1] 王辰辰[1] CAI Jing;SHI Bo;WANG Chenchen(Changcheng Institute of Metrology & Measurement,Beijing 100095,China)

机构地区：[1]航空工业北京长城计量测试技术研究所

出　　处：《计测技术》2019年第3期83-88,共6页Metrology & Measurement Technology

基　　金：国家“十三五”技术基础项目(JSJL2015B016)

摘　　要：信号调理器是动态测试系统的重要组成部分,带宽、放大倍数和滤波是衡量其性能的主要指标。动态测试系统的输出信号幅值和相位是表征测试结果的重要参数。本文研究信号调理器性能对动态测试系统输出信号幅值和相位的影响,试验并分析带宽、放大倍数和滤波对输出信号幅值和相位造成的衰减。对提高动态测试结果准确度,优化测试系统动态性能具有重要意义。Signal conditioner is a significant part of dynamic measurement system, the bandwidth, amplification and filtering are main indexes to evaluate its performance.The output signal amplitude and phase of the dynamic measurement system are main parameters for characterizing the test results.The influence of the dynamic performance of signal conditioner to the output signal amplitude and phase of the dynamic measurement system is studied in this paper, Experiments are conducted,and the attenuations of output signal amplitude and phase caused by the bandwidth, amplification and filtering are analyzed.Improving the accuracy of dynamic measurement results and optimizing the dynamic performance of measurement system are of the significance of this paper.

关 键 词：信号调理器 带宽 放大倍数 滤波 幅值 相位 

分 类 号：TB93[一般工业技术—计量学]