分布式应力传感光缆产品简介-北京新科凯邦科技有限公司

项目介绍

分布式应力传感光缆产品简介

Introduction of distributed strain sensing cable

分布式光纤应力实时监测系统的原理是利用布里渊散射光对温度和应变敏感的特性，能探测出沿着光纤不同位置的温度和应变变化。当光纤沿线的温度发生变化或者存在轴向应变时，光纤中的反向布里渊散射光的频率将发生漂移。频率的漂移量与光纤应变和温度的变化呈良好的线性关系，通过测量光纤中的方系统向自然布里渊散射光的频率漂移量就可以得到光纤沿线温度和应变的分布信息。近年来，分布式光纤应力传感技术越来越得到人们的重视，特别是对于减灾防害预防作用，为人们所认可。

The principle of the distributed fiber strain real-time monittoring system (DSS) is to detect the temperature and strain variation along different positions of the fiber by using the temperature and strain sensitivity of Brillouin scattered light. When the temperature along the fiber line changes or axial strain exists, the frequency of backscatter light in the fiber will drift. The frequency drift has a good linear relationship with the variationoffiber strain and temperature. In this way, the temperature and strain distribution along the fiber can be obtained by measuriing the frequency drift. In recent years, distributed optical fiber strain sensing technology has been paid more attention, especilly for the role of disaster reduction and prevention, which has been recognized by people

应力传感光缆作为分布式光纤应力传感系统的重要的探测单元，一直是制约整个系统应用的瓶颈所在。在实际工程应用中，应力光缆所面临的各种环境非常复杂多变，没有那种光缆是可以通用的。因此如何开发、选用适用不同应用条件的力传感光缆一直是光佳光电所坚持的方向和目标。

As an important detection unit of DSS system, the stress sensing cable is always the bottleneck restricting its application.In practical application, the strain cables faces a changeable and complex environment. There is no a kind of cable can be universal used all situations. Therefore, how to develop and how to select a strain sensing cable that suitable for various conditions is our key work and target.

经过多年的努力，我们研发了一系列具有非常良好的应用效果的应力传感光缆，广泛用于油气石化管道的应力和温度测量；大坝、桥梁、隧道等的结构健康监测；铁路钢轨、高速公路形变等监测。

After years of efforts, we has developed a series of straiin sensing cables with very good application effects, which are widely used in the stress and temperature measurement of oil, gas and petrochemical pipelines,in structural health monitoring of DAMS, Bridges,tunnels,an in railway rail,highway deformation monitoring.