A Mobile Sensor for Remote Detection of Natural Gas Leakage
ZHANG Shuai1, LIU Wen-qing1*, ZHANG Yu-jun1, KAN Rui-feng1, RUAN Jun1, WANG Li-ming1, YU Dian-qiang2, DONG Jin-ting2, HAN Xiao-lei2, CUI Yi-ben1, LIU Jian-guo1
1. Key Laboratory of Environmental Optics & Technology, Anhui Institute of Optics & Fine Mechanics, Chinese Academy of Sciences, Hefei 230031，China 2. Shengli Engineering Design & Consulting Co., Ltd., Dongying 257026, China
Abstract：The detection of natural gas pipeline leak becomes a significant issue for body security, environmental protection and security of state property. However, the leak detection is difficult, because of the pipeline’s covering many areas, operating conditions and complicated environment. A mobile sensor for remote detection of natural gas leakage based on scanning wavelength differential absorption spectroscopy (SWDAS) is introduced. The improved soft threshold wavelet denoising was proposed by analyzing the characteristics of reflection spectrum. And the results showed that the signal to noise ratio (SNR) was increased three times. When light intensity is 530 nA, the minimum remote sensitivity will be 80 ppm*m. A widely used SWDAS can make quantitative remote sensing of natural gas leak and locate the leak source precisely in a faster, safer and more intelligent way.
张 帅1，刘文清1*，张玉钧1，阚瑞峰1，阮 俊1，王立明1，余殿强2，董金婷2，韩小磊2，崔益本1，刘建国1. 一种移动式遥测天然气泄漏检测仪[J]. 光谱学与光谱分析, 2012, 32(02): 570-574.
ZHANG Shuai1, LIU Wen-qing1*, ZHANG Yu-jun1, KAN Rui-feng1, RUAN Jun1, WANG Li-ming1, YU Dian-qiang2, DONG Jin-ting2, HAN Xiao-lei2, CUI Yi-ben1, LIU Jian-guo1 . A Mobile Sensor for Remote Detection of Natural Gas Leakage . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(02): 570-574.
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