A real-time detecting system online for monitoring H2O in the gas of SF6 concentration with infrared laser spectral detection principle is introduced.Applying infrared detection technology based on the molecular absorption of radiation theory
the photoelectric sensor for H2O density detection is designed.The ARM hardware platform centralized on S3C44B0 is developed.It consists of A/D conversion module
LCD display module and GPRS module by RS—232 bus.Compared with the traditional instruments
it has high sensitivity
good at repetition and powerful in real-time.The detecting precision reaches 0.001%
which is an ideal equipment for detecting H2O concentration in the use of the gas of SF6.
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references
GIS设备的SF 6 气体管理 [J]. 刘斌,黄永华,郑圣辉. 电力学报 . 2006(01)
SF 6 气体微水含量在线监测方法及其软件实现 [J]. 李艳秋,江秀臣,曾奕. 华东电力 . 2006(03)