以前的机械振动子传感器虽然复现性、分辨力、稳定性较好,但其输入输出关系呈非线性,且信号处理回路复杂。本文就目前少见的依据物理量变化,使其固有振动频率改变的复合音叉机械振动子传感器的原理作一介绍。众所周知,弹性物体的固有振动频率 f 与本身材质的性质及形状有关,有 Although the former mechanical vibration sensor reproducibility, resolution, stability is good, but the relationship between the input and output was nonlinear, and the signal processing loop is complex. In this paper, we introduce the principle of compound tuning fork mechanical vibrator sensor, which is rare based on the change of physical quantity and its natural vibration frequency. It is well known that the natural frequency f of an elastic body is related to the nature and shape of its own material.