一、前言关于船舶推进系统转轴扭矩的测量,过去多半采用电刷式或感应式,这种方法受到安装条件的种种限制,给测量带来了许多困难。即使能够测量,一般还需针对被测件进行必要的改动设计,因此,要花费一定的准备时间,也就是说适应性不佳。另外,电刷式和感应式,由于摩擦产生热电势、滑动、轴的振动、自己发电等原因都会产生杂波,特别是转速越高其杂波越大,这是一个致命的弱点,而且维修保 I. INTRODUCTION The measurement of shaft torque of marine propulsion system was mostly done by brush or induction in the past. This method was limited by the installation conditions, which brought many difficulties to the measurement. Even if it is possible to measure, it is generally necessary to make the necessary changes to the design of the device under test. Therefore, it takes a certain amount of preparation time, which means poor adaptability. In addition, the brush and induction, due to friction thermoelectric potential, sliding, shaft vibration, power generation and other reasons will have a clutter, especially the higher the speed of its clutter, this is a fatal weakness, and maintenance Paul