Research on Resistance Strain Gage Direct Current Bridge Measure Circuit
Shujie Wang · Journal of Taizhou Polytechnical Institute · 2005
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.