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Driver Circuit of Bridge Sensor

2016-05-17 18:47  
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Driver Circuit of Bridge Sensor
The picture shows the driver circuit of bridge sensor. We can see that in this circuit A1 is the constant current output circuit where the constent value is determined by UZ(the steady voltage of VD1) and (R(RP1)+R2). It provides the patialvalue ofconstant currentto the bridge sensor(the bridge circuit consisting of RA-RD). The amplifier which consisting of A2-A4 can magnify the signals which was outputed by seneors to the level needed.