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.
Patent No.:
Date of Patent:
Jan. 03, 2006
Filed:
Aug. 06, 2004
Robert P. Lucht, West Lafayette, IN (US);
Thomas N. Anderson, West Lafayette, IN (US);
Sherif F. Hanna, College Station, TX (US);
Rodolfo Barron-jimenez, College Station, TX (US);
Thomas Walther, Darmstadt, DE;
Sukesh Roy, Dayton, OH (US);
Michael S. Brown, Dayton, OH (US);
James R. Gord, Dayton, OH (US);
Jerald A. Caton, College Station, TX (US);
Robert P. Lucht, West Lafayette, IN (US);
Thomas N. Anderson, West Lafayette, IN (US);
Sherif F. Hanna, College Station, TX (US);
Rodolfo Barron-Jimenez, College Station, TX (US);
Thomas Walther, Darmstadt, DE;
Sukesh Roy, Dayton, OH (US);
Michael S. Brown, Dayton, OH (US);
James R. Gord, Dayton, OH (US);
Jerald A. Caton, College Station, TX (US);
The United States of America as represented by the Secretary of the Air Force, Washington, DC (US);
Abstract
A nitric oxide sensor and method is disclosed. The sensor is based on sum-frequency mixing of a tunable, 395-nm external cavity diode laser with a 532-nm diode-pumped intracavity-frequency-doubled Nd:YAG laser in a beta-barium-borate crystal. The output from the BBO crystal is ultraviolet radiation at 227 nm and is split using a 50—50 beam splitter. Half of the radiation is directed into a reference photomultiplier tube, and the other half of the UV radiation is directed through the medium of interest and then directed into a signal photomultiplier tube. The output from the photomultiplier tubes is compared and the difference utilized to indicate the level of nitric oxide by absorption-based spectrosocpic techniques.