Designation of a Grating Torque Measurement Device Based on FPGA and MCU

Abstract

For the mechanical transmission system, the torque measurement of rotating machinery has important significance to the research and development of products test、to analysis the quality inspection safety and to the control optimization. For the complex composition of the present torque measurement, this paper puts forward a simple structure torque measurement system, and it has high measurement precision. First, the grating photoelectric output signals are converted into square wave signal, then system measurement method is accepted through the relationship of the two square wave signal phase, which has corresponding relation to the twist angle of the sensor shaft. The experimental platform is constructed based on field programmable gates array (FPGA) and MCU, the non-contact torque measurement is realized through the designation of measurement system software. This method has practical value and it is expected to be used widely.