Design of Fibre Optic Temperature Measurement System Based on Raman Scattering and Its Application Analysis
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.
optical fibre temperature measurement systemRaman scatteringoptical time-domain reflection
NETL
NSTL
万方数据
