Infrared simultaneous gas detector for an atmospheric environmental network

J. A. Chavez; J. A. Ortega; A. Turo; J. Salazar; M. J. Garcia

doi:100000/000

Infrared simultaneous gas detector for an atmospheric environmental network

J. A. Chavez^*
, J. A. Ortega
, A. Turo
, J. Salazar
, M. J. Garcia

^*Corresponding author for this work

Polytechnic University of Catalonia

Research output: Contribution to journal › Conference article › peer-review

Abstract

A pollutant gas detector is presented. The sensor system detects simultaneously CO and SO₂ in a range from 0 to 200 ppm with a resolution of 7 ppm, however the system is able to analyse up to 19 gases simultaneously. A new technique based on a multilayer filter array is proposed to prevent the use of moving parts. The central-wavelengths of filters were selected according to the position of the absorption band of interest for each gas. The CO and SO₂ central-wavelengths were measured and its transmission spectral response was also predicted by using the HITRAN database. Also a new conditioning circuit with high-performance is proposed using low-cost components. The circuit is based on shifting the measured signal to intermediate frequency. With this technique a reduction of 1/f noise is achieved. The new system features reduction of moving parts, high acquisition speed and low-cost.

Original language	English
Pages (from-to)	158-168
Number of pages	11
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	3493
DOIs	https://doi.org/100000/000
Publication status	Published - 1998
Externally published	Yes
Event	Proceedings of the 1998 Conference on Spectroscopic Atmospheric Environmental Monitoring Techniques - Barcelona, Spain Duration: 21 Sept 1998 → 22 Sept 1998

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title = "Infrared simultaneous gas detector for an atmospheric environmental network",

abstract = "A pollutant gas detector is presented. The sensor system detects simultaneously CO and SO2 in a range from 0 to 200 ppm with a resolution of 7 ppm, however the system is able to analyse up to 19 gases simultaneously. A new technique based on a multilayer filter array is proposed to prevent the use of moving parts. The central-wavelengths of filters were selected according to the position of the absorption band of interest for each gas. The CO and SO2 central-wavelengths were measured and its transmission spectral response was also predicted by using the HITRAN database. Also a new conditioning circuit with high-performance is proposed using low-cost components. The circuit is based on shifting the measured signal to intermediate frequency. With this technique a reduction of 1/f noise is achieved. The new system features reduction of moving parts, high acquisition speed and low-cost.",

author = "Chavez, \{J. A.\} and Ortega, \{J. A.\} and A. Turo and J. Salazar and Garcia, \{M. J.\}",

year = "1998",

doi = "100000/000",

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pages = "158--168",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

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note = "Proceedings of the 1998 Conference on Spectroscopic Atmospheric Environmental Monitoring Techniques ; Conference date: 21-09-1998 Through 22-09-1998",

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TY - JOUR

T1 - Infrared simultaneous gas detector for an atmospheric environmental network

AU - Chavez, J. A.

AU - Ortega, J. A.

AU - Turo, A.

AU - Salazar, J.

AU - Garcia, M. J.

PY - 1998

Y1 - 1998

N2 - A pollutant gas detector is presented. The sensor system detects simultaneously CO and SO2 in a range from 0 to 200 ppm with a resolution of 7 ppm, however the system is able to analyse up to 19 gases simultaneously. A new technique based on a multilayer filter array is proposed to prevent the use of moving parts. The central-wavelengths of filters were selected according to the position of the absorption band of interest for each gas. The CO and SO2 central-wavelengths were measured and its transmission spectral response was also predicted by using the HITRAN database. Also a new conditioning circuit with high-performance is proposed using low-cost components. The circuit is based on shifting the measured signal to intermediate frequency. With this technique a reduction of 1/f noise is achieved. The new system features reduction of moving parts, high acquisition speed and low-cost.

AB - A pollutant gas detector is presented. The sensor system detects simultaneously CO and SO2 in a range from 0 to 200 ppm with a resolution of 7 ppm, however the system is able to analyse up to 19 gases simultaneously. A new technique based on a multilayer filter array is proposed to prevent the use of moving parts. The central-wavelengths of filters were selected according to the position of the absorption band of interest for each gas. The CO and SO2 central-wavelengths were measured and its transmission spectral response was also predicted by using the HITRAN database. Also a new conditioning circuit with high-performance is proposed using low-cost components. The circuit is based on shifting the measured signal to intermediate frequency. With this technique a reduction of 1/f noise is achieved. The new system features reduction of moving parts, high acquisition speed and low-cost.

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U2 - 100000/000

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M3 - Conference article

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SN - 0277-786X

VL - 3493

SP - 158

EP - 168

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Proceedings of the 1998 Conference on Spectroscopic Atmospheric Environmental Monitoring Techniques

Y2 - 21 September 1998 through 22 September 1998

ER -

Infrared simultaneous gas detector for an atmospheric environmental network

Abstract

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