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:
Oct. 31, 2017
Filed:
May. 27, 2015
The United States of America, As Represented BY the Secretary of Commerce, Washington, DC (US);
Steven S. Brown, Boulder, CO (US);
William P. Dubé, Wheat Ridge, CO (US);
Robert J. Wild, Boulder, CO (US);
The United States of America, Washington, DC (US);
Abstract
A sensitive, compact detector measures total reactive nitrogen (NO), as well as NO, NO, and O. In all channels, NOis directly detected by laser diode based cavity ring-down spectroscopy (CRDS) at 405 nm. Ambient Ois converted to NOin excess NO for the Omeasurement channel. Likewise, ambient NO is converted to NOin excess O. Ambient NOis thermally dissociated at 700 C to form NOor NO in a heated quartz inlet. Any NO present in ambient air or formed from thermal dissociation of other reactive nitrogen compounds is converted to NOin excess Oafter the thermal converter. The precision and accuracy of this instrument make it a versatile alternative to standard chemiluminescence-based NOinstruments.