摘要
传感器测量电路通常采用电桥电路,电阻应变片是测量微小应变的常用传感元件。论述电阻应变片直流电桥测量电路的工作原理,介绍可变增益放大器AD8221在应变测量中的应用,并对其提高共模抑制比以及对ESD的防护措施进行阐述。
Measuring circuits for sensors are commonly bridge circuit. Resistance strain gage is a sensor for measuring small strain strength. This article talks about the working principle of resistance strain gage direct current bridge measure circuit. It gives a description about how the variable gain amplifier AD8221 improves CMRR in strain measurement and the ESD protecting measure.
出处
《泰州职业技术学院学报》
2005年第4期23-24,58,共3页
Journal of Taizhou Polytechnic College
