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:
Dec. 06, 2022

Filed:

May. 28, 2019
Applicant:

Tsi Incorporated, Shoreview, MN (US);

Inventors:

Robert Caldow, Roseville, MN (US);

Jason Paul Johnson, Saint Paul, MN (US);

Hee-Siew Han, Minneapolis, MN (US);

Jacob Scheckman, Minneapolis, MN (US);

Assignee:

TSI Incorporated, Shoreview, MN (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 15/08 (2006.01); G01N 15/06 (2006.01); G01N 15/00 (2006.01); G01N 15/14 (2006.01);
U.S. Cl.
CPC ...
G01N 15/0826 (2013.01); G01N 15/065 (2013.01); G01N 2015/0042 (2013.01); G01N 2015/1486 (2013.01);
Abstract

The disclosed subject matter compensates or corrects for errors that otherwise would be present when a measurement is made on a condensation particle counting system with the only difference causing the errors being absolute pressure. The difference in absolute pressure may be due to, for example, a change in altitude in which the condensation particle counting system is located. Techniques and mechanisms are disclosed to compensate for changes in particle count, at a given particle diameter, for changes in sampled absolute pressure at which measurements are taken. Other methods and apparatuses are disclosed.


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