振动加速度传感器的自激振荡消除方法研究  

Research on eliminating self-excited oscillation for vibration acceleration sensors

作　　者：王玲[1] 李慧琴[1] 李洲[1] 赵汉雨[1] 

机构地区：[1]河南农业大学机电工程学院,河南郑州450002

出　　处：《中国测试》2009年第5期85-87,共3页China Measurement & Test

基　　金：河南省科技攻关项目(082102210111)

摘　　要：为解决振动加速度传感器在实际使用中容易产生干扰及自激振荡等突发问题,在设计的加速度计检测电路基础上,通过建立数学模型分析产生自激振荡的原因,并结合具体的应用背景,采用了RC滞后补偿法,改善高频特性和通频带。电路经改进后,电路的抗干扰性能得到很大的改善,振动加速度传感器呈现出良好的加速度信号。At present, vibration accelerometer sensors are widely used for their simple construction and low cost. But in the actual operation environment, they are prone to interference and self-excited oscillation, and other unexpected problems, which require circuit designed to resist interference and restrain self-excited oscillation, etc. On the basis of detection circuit design of the accelerometer, analyzing the reason of self-excited oscillation through establishing mathematical models, and taking the specific application background into concerned, the authors improved the high-frequency characteristics and the pass band with the method of RC lag compensation. Then, the improved circuit has excellent anti-jamming performance, and the vibration acceleration sensor gives excellent acceleration signal.

关 键 词：振动加速度传感器 自激振荡 干扰 调理电路 滞后补偿 

分 类 号：TP212.12[自动化与计算机技术—检测技术与自动化装置] TM930.114[自动化与计算机技术—控制科学与工程]