Design and Research of Distributed Laser Methane Monitoring Device
Aiming at the problems of poor stability,poor self-calibration performance and susceptibility to impurity interference of catalytic combustion methane sensors in energy enterprises,a set of distributed laser methane monitoring equipment combined with tunable laser absorption spectrum was installed in the working face.Through testing in the well,the results show that,except for the maximum measurement value of 0.97％of the downhole calibration data,the methane sensor,after working,has a measurement value of 0.The optimised laser methane transmission monitoring equipment operates stably,and there is no drift in the zero point.
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