随着宇航事业的发展,要求不断提高姿控发动机的性能,需要对发动机的推力作精确的测量。常规的测量方式基本上是将被测的力作用于弹性元件上,使其产生位移,并用传感器将位移量转换成电信号。这种方法适用于大推力的测量,而对几十克左右的小推力就困难得多。1977年英国 B.C.Berbe With the development of the aerospace industry, the requirement to continuously improve the performance of the attitude control engine needs to accurately measure the thrust of the engine. Conventional measurement is basically the role of the measured force on the elastic element, so that it produces displacement, and use the sensor to convert the displacement into electrical signals. This method is suitable for measuring large thrusts and is much more difficult for small thrusts of several dozen grams. 1977 British B.C.Berbe