过去普遍使用的发动机测功设备中,发动机的扭矩是通过观测测功机磅秤读数,然后计算得出的。假设磅秤读数为P,测量杠杆的长度为L,则扭矩M=P·L(见图1)。在观测磅秤读数时,由于不可避免地存在人为的视觉误差。因此影响测试精度。加上不能输出测量信息和远距离 In the past commonly used engine dynamometer equipment, the engine torque is measured by observing the dynamometer scale and then calculated. Assuming the scale reads P and the length of the measuring lever is L, the torque M = P · L (see Figure 1). When observing scale readings, there is inevitable human error. Thus affecting the test accuracy. Plus can not output measurement information and long distance