发明名称 |
Pulsed laser linescanner for a backscatter absorption gas imaging system |
摘要 |
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.
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申请公布号 |
US6690472(B2) |
申请公布日期 |
2004.02.10 |
申请号 |
US20010965527 |
申请日期 |
2001.09.26 |
申请人 |
SANDIA NATIONAL LABORATORIES |
发明人 |
KULP THOMAS J.;REICHARDT THOMAS A.;SCHMITT RANDAL L.;BAMBHA RAY P. |
分类号 |
G01N21/31;G01N21/53;(IPC1-7):G01N21/47 |
主分类号 |
G01N21/31 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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