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:
Apr. 04, 2017

Filed:

May. 20, 2014
Applicant:

Mems Ag, Brugg, CH;

Inventors:

Philippe Pretre, Dattwil, CH;

Andreas Kempe, Zurich, CH;

Tobias Suter, Kilchberg, CH;

Assignee:

MEMS AG, Brugg, CH;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 33/22 (2006.01); G01N 25/36 (2006.01); G01N 25/18 (2006.01); G01N 7/00 (2006.01); G01N 33/00 (2006.01);
U.S. Cl.
CPC ...
G01N 33/0062 (2013.01); G01N 7/00 (2013.01); G01N 25/18 (2013.01); G01N 25/36 (2013.01); G01N 33/225 (2013.01);
Abstract

A method for determining physical properties of combustion including: flowing a gas a critical nozzle and past a microthermal sensor wherein the mass flow of the gas through the critical nozzle is the same as the mass flow through the microthermal sensor; measuring the pressure drop in a reservoir of gas flowing to the nozzle; determining a first gas property factor based on the measured pressure drop; determining a second gas property factor based on a flow signal generated by the microthermal sensor; determining a thermal conductivity of the gas using the microthermal sensor; and determining a physical property of the combustion based on a correlation of the first and/or second gas property factors and the thermal conductivity.


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