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介绍一种微功耗双环光功率推动的非接触式扭矩仪．由于较好地解决了扭矩测量中的信号耦合和探头工作能源的供给问题、使仪器可以在室光下或通过光纤在普通光的推动下实现持久的在线测量．该仪器特别适用于易燃易爆以及高转速等一些特殊工况下的扭矩测量．
A non-contact torque meter driven by micro-power double-loop optical power is introduced. Due to the better solution of the signal coupling in the torque measurement and the energy supply of the working energy of the probe, the instrument can achieve long-lasting on-line measurement driven by ordinary light under the room light or the optical fiber. The instrument is particularly suitable for flammable and explosive and high speed and some special conditions of torque measurement.