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:
Nov. 22, 2016

Filed:

Oct. 16, 2014
Applicant:

Spectro Scientific, Inc., Chelmsford, MA (US);

Inventors:

David B. Chamberlin, Shelton, CT (US);

Michael Edward Glowinski, Ridgefield, CT (US);

Donald Stanton Lavery, Chrisfield, MD (US);

Assignee:

Spectro Scientific, Inc., Chelmsford, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 40/14 (2006.01); G01N 21/59 (2006.01);
U.S. Cl.
CPC ...
G01N 21/59 (2013.01); G01N 2201/1211 (2013.01);
Abstract

A photometer and associated method includes a source of radiation to be directed through a sample and a detector stage configured to measure radiation after passing through the sample. A voltage follower circuit is connected to the detector and is configured to provide an output signal which varies as a function of the detector output voltage and which varies as a function of the ambient temperature. A processing subsystem is configured to determine a temperature compensation factor from the voltage follower circuit output signal.


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