直流供桥式动态电阻应变仪频响的检定  

The Calibration of the Frequency Response of Dynamic Resistance Strain Instrument under DC Voltage for Bridge

作　　者：何小兵[1] 

机构地区：[1]中国计量科学研究院

出　　处：《现代计量测试》1996年第5期29-31,共3页Modern Measurement and Test

摘　　要：频率响应是动态电阻应变仪一个很重要的技术指标，而目前国内对于直流供桥式动态电阻应交仪频响的检定尚无统一的检定方法和标准．为此，本文介绍一种用电学模拟的方法，产生一个交流标准信号，从而能对直流供桥式动态电阻应交仪频响进行检定的方法，并详细介绍了检定步骤和检定结果数据处理，还分析了检定装置的不确定度．The frequency response is one of the main specifications ofdynamic resistance strain instrument.At present, there is no widely acceptedcalibration method and standards for calibrating the frequency response ofdynamic resistance strain instrument under DC Voltage for bridge.The paper introduces an electrical simulation method which calibrates the frequencyresponse of dynamic resistance strain instruments by using an AC standardsignal, and gives the calibration steps as well as data processing methods indetails.The uncertainties of this calibration system are also analysed.

关 键 词：直流 供桥式 应变仪 动态电阻应变仪 频响 检定 

分 类 号：TM934.1[电气工程—电力电子与电力传动]