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- W2365991553 abstract "Coal mine gas CH4 is a characteristic gas which can be used for the diagnosis of coal mine safety production.Photoacoustic spectroscopy(PAS)is a new method for gas detection,which has high selectivity,high sensitivity,large dynamic detection range and not consuming the measured gas,and can be well applied to on-line monitoring of coal mine gas.Distributed feedback semiconductor laser is used to construct a PAS device for CH4 detection by which the relation between photoacoustic signal varies with the CH4 concentration,temperature,chopped frequency,laser power,background gas and gas pressure are investigated,and the photoacoustic spectrum of R(3)in the 2ν3 band of methane is gotten." @default.
- W2365991553 created "2016-06-24" @default.
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- W2365991553 date "2013-01-01" @default.
- W2365991553 modified "2023-09-23" @default.
- W2365991553 title "Study on photoacoustic spectroscopy detection of coal mine gas" @default.
- W2365991553 hasPublicationYear "2013" @default.
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