分布式传感在电力电缆应变测量和声学监测中的应用

S. Cherukupalli, G. Anders
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引用次数: 2

摘要

介绍光纤传感器在电力电缆中的分布式应变传感和分布式声传感应用。分布式应变监测(DSM)系统正在进入市场。应变测量将有助于确定确切的着陆点。在配电电缆中加入光纤不仅提供了使用分布式温度传感系统进行电信和温度测量的机会,而且还证明了通过DSM系统进行应变测量的有用性。本章讨论了BC Hydro子公司测试实验室完成的研究,旨在了解这种系统的敏感性,并确定其在实际海底电缆应用中实施可能带来的一些挑战。索的应力可以根据一定范围内的应变值来计算。DAS系统是基于光纤的光电仪器,用于测量沿光纤电缆长度的声学相互作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Use of Distributed Sensing for Strain Measurement and Acoustic Monitoring in Power Cables
This chapter describes distributed strain sensing and distributed acoustic sensing (DAS) applications of the fiber optic sensor for power cable applications. Distributed strain monitoring (DSM) systems are arriving into the market place. The strain measurement would help identify the exact touchdown point. Including an optical fiber in the distribution cables provided opportunities not only for telecommunication and temperature measurements using a distributed temperature sensing system but also proved useful in strain measurement via a DSM system. The chapter discusses studies completed at BC Hydro's subsidiary test laboratory that aim to understand the sensitivities of such a system, and identify some of the challenges surrounding its implementation on a real submarine cable application might offer. Cable stress can be calculated from the strain values within certain limits. DAS systems are fiber optic‐based optoelectronic instruments which measure acoustic interactions along the length of a fiber optic cable.
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