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Handheld, battery-powered near-IR TDL sensor for stand-off detection of gas and vapor plumes

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Abstract.

A handheld, battery-powered tunable-diode-laser sensor platform is described. The sensor is based on frequency modulation (FM) spectroscopy using near-IR diode lasers and passive topographic backscatter from common environmental targets such as buildings, ground and foliage. A specific application to the detection of methane using a 1.65-micron diode laser is described in detail, showing a detection sensitivity sufficient to identify typical leaks from buried residential natural gas service lines at stand-off distances up to 30 m. Signal and noise sources are analyzed in detail, along with laboratory and field-test data, including known service leaks.

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Authors and Affiliations

  1. Physical Sciences Inc., 20 New England Business Center, Andover, MA 01810, USA, , , , , , US

    R.T. Wainner, B.D. Green, M.G. Allen, M.A. White & J. Stafford-Evans

  2. KeySpan Energy Delivery, 201 Rivermoor Street, W. Roxbury, MA 02132, USA, , , , , , US

    R. Naper

Authors
  1. R.T. Wainner
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  2. B.D. Green
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  3. M.G. Allen
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  4. M.A. White
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  5. J. Stafford-Evans
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  6. R. Naper
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Additional information

Received: 15 April 2002 / Revised version: 4 June 2002 / Published online: 21 August 2002

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ID="*"Corresponding author. Fax: +1-978/689-3232, E-mail: allen@psicorp.com

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Wainner, R., Green, B., Allen, M. et al. Handheld, battery-powered near-IR TDL sensor for stand-off detection of gas and vapor plumes. Appl Phys B 75, 249–254 (2002). https://doi.org/10.1007/s00340-002-0984-7

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  • DOI: https://doi.org/10.1007/s00340-002-0984-7

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