摘要
设计了一种新型多通道应变测量系统 ,该系统能够消除测量环节中的运算放大器、A D转换器及电桥供电电源漂移的影响 ,具有极高的测量精度和稳定性。该测量原理不仅可应用于应变测量系统 ,还可应用于温度、压力等测量系统中 ,具有非常广泛的使用范围 ,文中还分析了该系统的特性。
A new multichannel strain measuring system has been designed. The system can eliminate the effects from the drifts of operational amplifier, A/D convertor and active bridge during measurement, and has extremely high accuracy and stability. The principle not only can be used in strain measurement but also in temperature and pressure measuring systems. The character astics of system, correction factors and experiment conclusion are analyzed.
出处
《计量学报》
CSCD
北大核心
2003年第3期205-210,共6页
Acta Metrologica Sinica
关键词
计量学
应变测量
漂移
电桥
运算放大器
Metrology
Strain measurement
Drift
Bridge
Operational amplifier
