摘要
通过分析普通磁电式速度传感器在测量超低频绝对振动信号时存在固有缺陷带来的问题,介绍了基于磁阻尼的超低频绝对振动传感器机理,系统用磁阻尼代替机械阻尼工作,克服了普通磁电式速度传感器体积大、质量大、不便运输等问题,下限频率达到了0.25 Hz。
The theoretical research about ultra-low frequency of absolute vibration sensor in magnetic damper , we raise it by analyzing the inherent vice, which exist in ordinary magnetoelectric speed sensor when we measure the ultra-low frequency. In our study, magnetic damper replace mechanical damper, and solve the problem in ordinary magnetoelectric speed sensor, just like more bigger, heavier, harder to move and so on. At the same time, the lower frequency limit attain 0.25 Hz.
出处
《微型机与应用》
2014年第5期74-75,78,共3页
Microcomputer & Its Applications
关键词
超低频
绝对振动
机械阻尼
磁阻尼
ultra-low frequency
absolute vibration
mechanical damper
magnetic damper
