Apparatus and method for chemical and biological agent sensing
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United States of America Patent
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Issued Date -
Nov 23, 2006
app pub date -
Feb 25, 2004
filing date -
Feb 25, 2003
priority date (Note) -
Abandoned
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Abstract
The present invention provides an apparatus and method for identification of a chemical or a biological agent using a handheld or portable unit in non-laboratory conditions. More specifically, the system uses a portable unit containing an array of tunable lasers, which are stabilized with a digital controller. The apparatus excites the sample under test with a narrow band light source used to excite fluorescence. The fluorescent response is detected with a broadband detector and digitized. The information is then sent through wireless means to a remote server where a database of appropriate signatures is used to determine the identity of the sample. The results are sent back to the portable unit or to a Personal Digital Assistant (PDA).
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