The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 14, 2022

Filed:

Jul. 15, 2020
Applicant:

The United States of America, As Represented BY the Secretary of the Navy, Crane, IN (US);

Inventors:

Kin Chiu Ng, Fresno, CA (US);

Subrata Sanyal, Eastvale, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01J 3/28 (2006.01); G01J 3/02 (2006.01); G01J 3/42 (2006.01); G01J 3/04 (2006.01);
U.S. Cl.
CPC ...
G01J 3/0251 (2013.01); G01J 3/0208 (2013.01); G01J 3/42 (2013.01); G01J 2003/042 (2013.01); G01J 2003/423 (2013.01);
Abstract

The present invention relates to the design, construction, and operation of a laser air-sampling multi-spectrometer; its operation with variable laser energy to simultaneously and/or sequentially perform spectrometric techniques of LAS, LEFS, RSS, and LIBS. The combined spectrometric operation will detect gas and particulate chemicals directly in a flowing stream of air sample and/or particulate chemicals on filter collected from the flowing stream of air sample.


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