A simulation process of tunable open path diode laser spectrometer to detect a carbon monoxide gas in NIR region
2022 ◽
Vol 961
(1)
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pp. 012081
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Abstract By modifying the wavelength of the open path tunable diode laser spectrometer (TDLS) in the near infrared region, theoretical research was implemented to improve the detection limit of carbon monoxide gas. To adjust the correct wavelength in the NIR area, MatLab code was created. Following that, frequency domain measurements were performed in order to extract the second harmonic as an indicator of gas presence. According to the results, the correct wave length in the NIR area is (1584.877 nm), and the lowest limit of CO gas concentration is (0.012 ppb).
1998 ◽
Vol 103
(D15)
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pp. 19161-19172
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1989 ◽
Vol 94
(D12)
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pp. 14991-14991
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1987 ◽
Vol 92
(D10)
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pp. 11931
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2004 ◽
Vol 60
(14)
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pp. 3353-3360
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2002 ◽
Vol 216
(1)
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pp. 24-29
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1988 ◽
Vol 43
(5)
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pp. 402-406
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1989 ◽
Vol 44
(7)
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pp. 633-639
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