Aiming at disadvantages of high fault rate of tie-line and angle types dynamometer and high energy consumption of passive work mode wireless dynamometer

a kind of wireless dynamometer with active and passive work mode is designed. The dynamometer can test dynamometer card and upload data not only according to command received the but also can automatically do these works according to the established procedure. A kind of comprehensive filtering algorithm is designed

which can effectively remove high-frequency interference and peak interference in acceleration datas. The hardware circuit

work mode and filtering program are described in detail

and test analysis on energy consumption and dynamometer card data are given. The field application shows that the device has advantages of high reliability

accurate measurement and low energy consumption.