基于压电加速度传感器的振动测量系统研究

为实现对振动的有效测量,构建了压电加速度传感器的振动测量系统;对压电加速度传感器的力学模型及基本原理进行了有效地分析,并采用灵敏度比较法标定传感器,提高了整个测试系统的测量精度和可靠性;并应用了信号处理中的相关滤波原理;测试系统由压电加速度传感器、高速数据采集卡及Labview2010软件开发平台构成;软件功能主要有信号采集、历史数据读取、数据滤波、时频域分析等;搭建了工程实际测振的实验模型,并根据其频谱特性判断内部缺陷;实验结果表明,该测振系统运行稳定,操作简单,具有很好的可扩展性及可移植性,能实现准确、高效、实时的振动测量。

Study on#$NBSvibration measurement system#$NBSbased on piezoelectric acceleration#$NBSsensor

In order toSachieve the effective measurementSof vibration,a vibration measurement systemSofSpiezoelectric accelerationSsensor Sis constructed;To analyze the mechanical model and the basic principle of piezoelectric acceleration sensor,using comparison method calibration sensor sensitivity,expounds the hardware composition and software design method of the vibration system,set up a experimental model for the practical engineering measurement vibration;The experimental results show that the vibration system is running stable,strong portability.