A new measurement method for unbonded elastic wire resistance meters by introducing mirror current source circuit
Bian Jing-r · Sensor World · 2014
In view of the great difficulty of obtaining high accuracy measuring results for unbonded elastic wire resistance meters, a new method is presented in this paper, which introduces a mirror current source circuitto complete separation between DC component and alternating component of the resistors. By this new method the alternating component of resistor can be pick up as the only signal for amplifi cation in the signal processing and ideal measuring sensitivity and precision can be reached.