摘要
传感器电桥电路可以采用单桥、半桥和全桥等电路形式。对单桥和非差动半桥电路,其输出电压与桥臂电阻变化量之间呈非线性关系。本文讨论了采用运算放大器的电桥非线性校正电路。这些电路可以完全消除非线性误差、提高输出灵敏度,具有简单易用的特点。本文的讨论对"测控电路"课程的教学具有一定的参考价值。
Transducer bridge circuits include arrangements such as individual bridge, half bridge full bridge and etc. The relationship between the output voltage and the variation of the transducer resistance is nonlinear for indi- vidual bridge and non-differential half bridge circuits. Nonlinearity correcting circuits which apply operational am- plifiers are discussed. These correcting circuits can eliminate nonlinear errors thoroughly and increase sensitivity of the bridge. They own simple structures and can be realized easily. It is helpful for the teaching of Measurement and Control Circuit course.
出处
《电气电子教学学报》
2013年第6期27-29,共3页
Journal of Electrical and Electronic Education
关键词
电桥电路
非线性校正
检测技术
bridge circuit
nonlinearity correcting
measurement and control circuit
