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基于改进积分滤波电路的实验室微弱漏电检测
资料介绍
为了解决实验室微弱漏电难以检测的问题,提出了一种改进的积分滤波电路,以提高检测漏电事故的准确率.该积分滤波电路通过T型反馈电路、整形电路以及周期积分电路,对在一段时间内反复发生的漏电电流信号进行放大转化和整形,并结合时序控制完成对待检测信号的周期取样.同时依据周期取样信号的累积比较,实现实验室漏电事件的自动检测.结果表明,检测系统具有良好的效能和实用性,识别准确率可以达到96%以上.
In order to solve the problem of difficult detection of weak leakage in laboratory,an improved integral filter circuit was proposed to improve the accuracy of leakage detection. With a T-type feedback circuit,a shaping circuit and a periodic integration circuit,the leakage current signals that repeatedly occur over a period of time were amplified,converted and shaped by the as-proposed integral filter circuit,and the periodic sampling of signal waiting for detection was accomplished in combination with timing control. At the same time,according to the cumulative comparison of periodically sampled signals,the automatic detection of laboratory leakage was realized. The results show that the detection system has good efficiency and practicability,with a recognition accuracy over 96%.
部分文件列表
| 文件名 | 大小 |
| 基于改进积分滤波电路的实验室微弱漏电检测.pdf | 503K |
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