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论述了高精度电阻应变式扭矩转速传感器原理，介绍了半导体电桥电路、高精度电源及仪用放大器电路，以及信号耦合电路等技术关键，给出了检定数据。
The principle of high precision resistance strain type torque and rotation speed sensor is expounded. The key technologies of semiconductor bridge circuit, high precision power supply and instrumentation amplifier circuit and signal coupling circuit are introduced. The verification data are given.