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- W4220964598 abstract "Abstract Ethane (C 2 H 6 ) is an important gas in environmental monitoring, especially in urban areas, and the development of vehicle‐mounted mobile C 2 H 6 sensors is meaningful for high‐efficiency and wide‐range detection of C 2 H 6 concentration levels. Based on tunable diode laser absorption spectroscopy, a sensor system for the detection of trace C 2 H 6 concentration in the atmosphere was developed using wavelength modulation spectroscopy. An interband cascade laser with a central wavelength of 3337 nm and a multipass gas cell (MPGC) with an optical path length of 26.4 m was used as core optical components. The pressure in the MPGC was optimized at 200 Torr, and such pressure was stabilized by a self‐developed pressure control system. The sensor system was compactly integrated into a standalone instrument with a dimension size of 52 × 33 × 28.8 cm 3 . The detection limit (1 σ ) was measured to be 3.45 parts per billion at an averaging time of 0.5 s. Forty‐eight‐hour field experiment and vehicle‐mounted mobile measurement of atmospheric C 2 H 6 levels with concentration mapping were carried out on the Jilin University campus to validate the practical application ability of the system." @default.
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- W4220964598 date "2022-03-11" @default.
- W4220964598 modified "2023-10-15" @default.
- W4220964598 title "Vehicle‐mounted mobile mid‐infrared high‐precision atmospheric ethane sensor system" @default.
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- W4220964598 doi "https://doi.org/10.1002/mop.33218" @default.
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