1. 北京智芯微电子科技有限公司
2. 太原理工大学电气与动力工程学院
纸质出版:2023
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易玲, 王亚. 基于FBG和拾音器的局部放电声传感研究[J]. 传感器与微系统, 2023,(9):39-42.
易玲, 王亚. 基于FBG和拾音器的局部放电声传感研究[J]. 传感器与微系统, 2023,(9):39-42. DOI: 10.13873/J.1000-9787(2023)09-0039-04.
提出了一种基于光纤布拉格光栅(FBG)和拾音器结构的局部放电(PD)超声传感系统,旨在高效检测电力变压器中的局部放电。根据理论和仿真分析,设计制作了材质为高密度聚乙烯(HDPE)和聚四氟乙烯(Teflon)的不同结构的拾音器作为放大装置。利用制作的变压器模型,对传感器的频率响应、距离响应和角度响应进行了一系列实验,并最终进行了局部放电超声检测并与参考压电式传感器进行了对比。实验结果表明:该传感器的角度响应的标准差小于0.4 mV
对接收波的角度几乎没有依赖性;且性能优于参考压电式传感器。在226 kHz的超声信号下,该传感器的最小可探测声压为160μPa
证明了其有效性。
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