基于拉曼散射的光纤测温系统设计及其应用分析
Design of Fibre Optic Temperature Measurement System Based on Raman Scattering and Its Application Analysis
王韶伟1
作者信息
- 1. 山西王家岭煤业有限公司,山西 忻州 034000
- 折叠
摘要
设计基于拉曼散射的光纤测温系统,经测温监测发现高温区集中在该工作面距副巷壁面35～65 m处,从进风侧到回风侧,高温区在工作面内呈现由远及近的变化规律,并沿该工作面倾向方向逐渐变窄;在距副巷壁面124 m,仅在距工作面10 m处有一个291.49 K的小范围区域.此外,经束管监测的留巷侧、副巷侧氧气浓度变化趋势同于实际结果,验证了该测温技术的有效性.
Abstract
The design of fibre optic temperature measurement system based on Raman scattering,the temperature monitoring found that:the high temperature area is concentrated in the working face from the sub-tunnel wall 35～65 m,from the inlet side to the return side,the high temperature area in the working face presents the change rule from far to near,and along the direction of the tendency of the working face gradually become narrower;in the sub-tunnel wall 124 m from the working face,there is only a small range of 291.49 k in the working face at 10 m.The high temperature area in the sub-tunnel is also in the working face.area.In addition,the trend of the oxygen concentration in the side of the stay-alley and the side of the side of the secondary tunnel monitored by the accommodation tube is the same as the actual results,which verifies the effectiveness of the temperature measurement technology.
关键词
光纤测温系统/拉曼散射/光时域反射Key words
optical fibre temperature measurement system/Raman scattering/optical time-domain reflection引用本文复制引用
出版年
2024
NETL
NSTL
万方数据