利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN108445362A 基于光纤传感技术的局部放电超声信号检测系统及方法 无效 - 驳回

基于光纤传感技术的局部放电超声信号检测系统及方法
摘要：
本发明涉及一种基于光纤传感技术的局部放电超声信号检测系统及方法，该系统包括变压器壳体、变压器放油阀、变压器油、一体化超声波光纤传感器、超声波光纤传感器用光源、1×2耦合器、3db耦合器、法拉第旋转镜、光纤、双通道光电转换和放大装置、双通道数据同步采集装置和控制与显示装置；所述的一体化超声波光纤传感器通过变压器放油阀侵入变压器壳体内并淹没在变压器油中。与现有技术相比，本发明具有简单实用、降低电磁和外部可见光干扰问题和无测量方位死角等优点。
摘要（英）：

The present invention relates to a system and a method for partial discharge ultrasonic signal detection based on an optical fiber sensing technology. The system comprises a transformer housing, a transformer oil drain valve, transformer oil, an integrated ultrasonic wave optical fiber sensor, a light source for an ultrasonic wave optical fiber sensor, a 1*2 coupler, a 3db coupler, a Faraday rotator mirror, optical fibers, a dual-channel photovoltaic conversion and amplification device, a dual-channel data synchronous collection device, and a control and display device. The integrated ultrasonic wave optical fiber sensor is intruded into the transformer housing and is submerged into the transformer oil through the transformer oil drain valve. Compared to the prior art, the system and the method for partial discharge ultrasonic signal detection are simple and practical, can reduce the electromagnetic interference and external visible light interference problems and has no measurement orientation dead angles.

0/0