Wireless laser spectroscopic sensor node for atmospheric CO2 monitoring - Laboratory and field test

C. J. Smith; S. So; L. Xia; S. Pitz; K. Szlavecz; D. Carlson; A. Terzis; Gerard Wysocki

doi:10.1007/s00340-012-5157-8

Wireless laser spectroscopic sensor node for atmospheric CO₂ monitoring - Laboratory and field test

C. J. Smith, S. So, L. Xia, S. Pitz, K. Szlavecz, D. Carlson, A. Terzis, Gerard Wysocki

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

We developed a low-power, portable, wireless laser spectroscopic sensor for atmospheric CO₂ monitoring. The sensor is based on tunable diode laser absorption spectroscopy with a 2-μm wavelength VCSEL as a source and wavelength modulation technique for spectroscopic signal detection. The sensor allows measurement of CO₂ concentration changes with a 1σ sensitivity of 0.14 ppmv Hz^-1/2. This sensor was both laboratory and field tested under varying environmental conditions. It was used to measure a soil respiration rate of topsoil in the lab and of forest floors in the field. Measurement results are compared with those of commercial non-dispersive infrared sensors and very good agreement is found.

Original language	English (US)
Pages (from-to)	241-248
Number of pages	8
Journal	Applied Physics B: Lasers and Optics
Volume	110
Issue number	2
DOIs	https://doi.org/10.1007/s00340-012-5157-8
State	Published - Feb 2013

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)
General Physics and Astronomy

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abstract = "We developed a low-power, portable, wireless laser spectroscopic sensor for atmospheric CO2 monitoring. The sensor is based on tunable diode laser absorption spectroscopy with a 2-μm wavelength VCSEL as a source and wavelength modulation technique for spectroscopic signal detection. The sensor allows measurement of CO2 concentration changes with a 1σ sensitivity of 0.14 ppmv Hz-1/2. This sensor was both laboratory and field tested under varying environmental conditions. It was used to measure a soil respiration rate of topsoil in the lab and of forest floors in the field. Measurement results are compared with those of commercial non-dispersive infrared sensors and very good agreement is found.",

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AU - Smith, C. J.

AU - So, S.

AU - Xia, L.

AU - Pitz, S.

AU - Szlavecz, K.

AU - Carlson, D.

AU - Terzis, A.

AU - Wysocki, Gerard

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AB - We developed a low-power, portable, wireless laser spectroscopic sensor for atmospheric CO2 monitoring. The sensor is based on tunable diode laser absorption spectroscopy with a 2-μm wavelength VCSEL as a source and wavelength modulation technique for spectroscopic signal detection. The sensor allows measurement of CO2 concentration changes with a 1σ sensitivity of 0.14 ppmv Hz-1/2. This sensor was both laboratory and field tested under varying environmental conditions. It was used to measure a soil respiration rate of topsoil in the lab and of forest floors in the field. Measurement results are compared with those of commercial non-dispersive infrared sensors and very good agreement is found.

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Wireless laser spectroscopic sensor node for atmospheric CO₂ monitoring - Laboratory and field test

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