交流接触器运行噪声的在线测量实验  

On Experiments about On-Line Measuring of Running Noise for AC Contactor

作　　者：杨建红[1] 张认成[1] 吴晓梅[1] 

机构地区：[1]华侨大学机电及自动化学院,福建厦门361021

出　　处：《华侨大学学报（自然科学版）》2012年第2期134-137,共4页Journal of Huaqiao University(Natural Science)

基　　金：福建省自然科学基金资助项目(2010J01294);福建省厦门市科技计划项目(3502Z20113016);华侨大学国家自然科学基金培育计划资助项目(JB-ZR1102)

摘　　要：首先通过大量的交流接触器样本实验,在标准消声室中分别使用传声器、加速度传感器和声级计提取振动噪声信号;然后,采用零阶声源模型构建交流接触器的标准声辐射指数信息库,并对标准声辐射指数信息库修正;最后,通过测振法开发交流接触器运行噪声在线测量系统.测试结果表明:基于测振法在线测量系统和声级计测量结果误差为±1.5dB,重复性误差为±1dB,测量结果不受背景噪声影响.First, the vibrational noise for AC contactor is and sound level meter in the standard anechoic chamber by obtained using the sensors including microphone, accelerator, a lot of sample experiments. Second, the information database of acoustic radiation exponent for AC contactor is built using the Zero-order sound source model, and the information data- base of the standard acoustic radiation exponent is corrected. Finally, based on the oscillometric method, an online meas- uring system of running noise for AC contactor was developed. The testing results have shown that the measuring error between using the oscillometric method and using the sound level meter is ± 1.5 dB, the repeatability error is ± 1 dB, and the measuring results were not influenced by the background noise.

关 键 词：交流接触器 声辐射 A计权 噪声 测振法 

分 类 号：TM343.03[电气工程—电机]