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基于BOTDR的变压器绕组变形检测试验研究 被引量:4
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作者 杨名宇 范晓舟 +2 位作者 徐永峰 晁智超 李欢 《山东电力技术》 2020年第2期27-31,共5页
针对常见的电力变压器绕组变形故障,已有的检测手段多为离线检测,无法实时反映绕组的应力变化。提出一种基于BOTDR的变压器绕组变形检测方法,设计了光纤复合式绕组模型,搭建了应力检测平台,并开展变压器绕组变形试验。试验结果表明:分... 针对常见的电力变压器绕组变形故障,已有的检测手段多为离线检测,无法实时反映绕组的应力变化。提出一种基于BOTDR的变压器绕组变形检测方法,设计了光纤复合式绕组模型,搭建了应力检测平台,并开展变压器绕组变形试验。试验结果表明:分布式光纤传感技术对变压器绕组微小的变形有着较高的灵敏度,可以同时实现绕组变形的定位,为变压器绕组的在线监测提供了一种新的思路。 展开更多
关键词 变压器 绕组变形 在线监测 分布式光纤 布里渊光时域反射计
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Pose-relay videometrics based ship deformation measurement system and sea trials 被引量:7
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作者 JIANG GuangWen FU SiHua +1 位作者 chao zhichao YU QiFeng 《Chinese Science Bulletin》 SCIE EI CAS 2011年第1期113-118,共6页
The measurement of ship deformation has been a difficult problem for the global ship building industry and navigation field research.So far,an effective and proven method for measuring 3D position and attitude deforma... The measurement of ship deformation has been a difficult problem for the global ship building industry and navigation field research.So far,an effective and proven method for measuring 3D position and attitude deformation remains unavailable.This article proposes an innovative pose-relay videometrics measurement system for ship deformation on the basis of primary research and experimental validation.The system offers solutions to the important technical problems such as infrared marker manufacture,high-precision detection and multi-camera synchronization and control.Sea trials were carried out,and reasonable,long-term,and continuous 3D data of position and attitude deformations between a given deck point and the ship reference,and between the ship's head and the stern were acquired for the first time.The experiments have highlighted the considerable applicability of the proposed method of deformation measurement and long-term monitoring of ships and similar large structures. 展开更多
关键词 变形测量系统 船舶 试航 海上 中继 三维位置 精密检测 监测方法
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