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Title: Pulsed laser linescanner for a backscatter absorption gas imaging system

Abstract

An active (laser-illuminated) imaging system is described that is suitable for use in backscatter absorption gas imaging (BAGI). A BAGI imager operates by imaging a scene as it is illuminated with radiation that is absorbed by the gas to be detected. Gases become "visible" in the image when they attenuate the illumination creating a shadow in the image. This disclosure describes a BAGI imager that operates in a linescanned manner using a high repetition rate pulsed laser as its illumination source. The format of this system allows differential imaging, in which the scene is illuminated with light at least 2 wavelengths--one or more absorbed by the gas and one or more not absorbed. The system is designed to accomplish imaging in a manner that is insensitive to motion of the camera, so that it can be held in the hand of an operator or operated from a moving vehicle.

Inventors:
; ; ;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1174725
Patent Number(s):
6,690,472
Application Number:
09/965,527
Assignee:
Sandia National Laboratories (Livermore, CA) SNL-L
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Kulp, Thomas J., Reichardt, Thomas A., Schmitt, Randal L., and Bambha, Ray P. Pulsed laser linescanner for a backscatter absorption gas imaging system. United States: N. p., 2004. Web.
Kulp, Thomas J., Reichardt, Thomas A., Schmitt, Randal L., & Bambha, Ray P. Pulsed laser linescanner for a backscatter absorption gas imaging system. United States.
Kulp, Thomas J., Reichardt, Thomas A., Schmitt, Randal L., and Bambha, Ray P. Tue . "Pulsed laser linescanner for a backscatter absorption gas imaging system". United States. https://www.osti.gov/servlets/purl/1174725.
@article{osti_1174725,
title = {Pulsed laser linescanner for a backscatter absorption gas imaging system},
author = {Kulp, Thomas J. and Reichardt, Thomas A. and Schmitt, Randal L. and Bambha, Ray P.},
abstractNote = {An active (laser-illuminated) imaging system is described that is suitable for use in backscatter absorption gas imaging (BAGI). A BAGI imager operates by imaging a scene as it is illuminated with radiation that is absorbed by the gas to be detected. Gases become "visible" in the image when they attenuate the illumination creating a shadow in the image. This disclosure describes a BAGI imager that operates in a linescanned manner using a high repetition rate pulsed laser as its illumination source. The format of this system allows differential imaging, in which the scene is illuminated with light at least 2 wavelengths--one or more absorbed by the gas and one or more not absorbed. The system is designed to accomplish imaging in a manner that is insensitive to motion of the camera, so that it can be held in the hand of an operator or operated from a moving vehicle.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 10 00:00:00 EST 2004},
month = {Tue Feb 10 00:00:00 EST 2004}
}

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