板束角对激光甲烷传感器检测精度的影响
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摘要
为了研究板束角变化对激光甲烷传感器检测精度的影响,采用浓度为2.00%的标准气体作为待测气体,设计18次实验,对不同板束角下激光甲烷传感器的检测误差进行了测定,经过数据分析发现,板束角在5°~75°区间时,激光甲烷传感器的测定误差具有下降趋势,板束角在89°~90°区间时,传感器测定误差具有上升趋势;板束角在75°~80°区间时,传感器测定误差最低,维持在0.04%。
In order to study the influence of palte beam angle change on the precision of laser methane sensor, taking the concentration of 2.00% standard gas as test gas, we design 18 times of experiments and determine testing error of laser methane sensor under different beam angles. Through data analysis, we find that plate beam angle within the range of 5 ° to 75 °, the determination of laser methane sensor error has a downward trend; the beam angle within the range of 89 ° to 90 °, sensor measuring error has a rising trend; plate beam angle within the range of 75 ° to 80 °, the sensor measurement error is minimum and remains at 0.04%.
In order to study the influence of palte beam angle change on the precision of laser methane sensor, taking the concentration of 2.00% standard gas as test gas, we design 18 times of experiments and determine testing error of laser methane sensor under different beam angles. Through data analysis, we find that plate beam angle within the range of 5 ° to 75 °, the determination of laser methane sensor error has a downward trend; the beam angle within the range of 89 ° to 90 °, sensor measuring error has a rising trend; plate beam angle within the range of 75 ° to 80 °, the sensor measurement error is minimum and remains at 0.04%.
引文
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[2]邓勃.原子吸收光谱分析的原理、技术和应用[M].北京:清华大学出版社,2004.
[3]陈东,刘文清,阚瑞峰,等.基于可调谐半导体激光吸收光谱的瓦斯监测方法研究[J].光学技术,2006,32(4):598-603.
[4]于庆.基于光谱吸收的气体检测技术在煤矿中的应用[J].矿业安全与环保,2012,39(3):26-32.
[5]刘中奇,王汝琳.基于红外吸收原理的气体检测[J].煤炭科学技术,2005,33(1):65-68.
[6]高耀.煤矿用全量程激光甲烷传感器[J].煤矿安全,2011,42(2):1-7.
[7]樊荣,侯媛彬,郭清华,等.可调谐半导体激光吸收光谱式甲烷传感器温度补偿技术[J].煤炭学报,2015,40(1):226-231.
[8]郑州光力科技股份有限公司.一种激光气体检测装置:CN204228597U[P].2015-03-25.
[9]张景超,管立君,肖长江,等.基于谐波检测原理的双光路CH4检测研究[J].光电子激光,2007,18(12):1442-1444.
[10]高昊.波长控制技术在矿用激光甲烷传感器中的应用[J].煤矿安全,2014,45(12):102-105.