在机械振动参数(加速度、速度、位移)的测量中,通常用压电加速度传感器测得振动加速度,再接入专门设计的积分电路,测量其振动速度和振动位移(振幅)。众所周知,对于振动频率为f的正弦振动加速度可表示为a=Amsin2πft=Amsinωt其中Am振动加速度峰值ω振动角频率ω=2πf于是振动加度速的一次积分为振动速度 In the measurement of mechanical vibration parameters (acceleration, velocity, displacement), the vibration acceleration is usually measured by a piezoelectric acceleration sensor, and then connected to a specially designed integral circuit to measure the vibration velocity and vibration displacement (amplitude). As we all know, for the vibration frequency f of the sinusoidal vibration acceleration can be expressed as a = Amsin2πft = Amsinωt Where Am vibration acceleration peak ω vibration angle frequency ω = 2πf Then the vibration acceleration is the integral of the vibration velocity