用力传感器测量位移和加速度的方法

指出用常规方法测量位移和加速度的局限性。依据力传感器良好的频响特性，并借助ＦＦＴ技术，提出一种用力传感器测量位移和加速度的新方法。该方法实现简便，能在较宽的频率范围内测量位移和加速度，尤其能较精确地测量大位移和低频加速度，还能校准加速度传感器低频段特性。实验证明，该方法是行之有效的。

A Method for Measuring Displacement and Acceleration Using Force Transducer

The limitations of the routine methods for measuring displacement and acceleration are presented. A new method based on fast Fourier transform and the excellent frequency response characteristic of the force transducer is suggested. The method is easy to be used, and it can measure displacement and acceleration in wide frequency band. Especially, the displacement with large amplitude or the acceleration in the low frequency band can be accurately measured by the method. Besides,the method can be used to calibrate the low frequency characteristic of an acceleration transducer.