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:
Jul. 21, 2015

Filed:

Apr. 28, 2011
Applicants:

Thomas M. Rezachek, Cottage Grove, MN (US);

Gary Shubinsky, Buffalo Grove, IL (US);

Inventors:

Thomas M. Rezachek, Cottage Grove, MN (US);

Gary Shubinsky, Buffalo Grove, IL (US);

Assignee:

HONEYWELL INTERNATIONAL INC., Morristown, NJ (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 21/00 (2006.01); G01N 21/17 (2006.01);
U.S. Cl.
CPC ...
G01N 21/1702 (2013.01); G01N 2021/1704 (2013.01);
Abstract

A photoacoustic detector wherein a detector response transfer function can be measured at various times under predetermined conditions during the life of the detector. One or more of the time related transfer functions each can, when acquired, be compared to the stored initial transfer function established at initial manufacture and calibration of the detector. Span and baseline correction values can be determined. These values can be used to compensate detected output values during normal operation. Time related transfer functions can be compared to each other as well as to the stored initial transfer function.


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