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. 09, 2018
Filed:
Dec. 21, 2015
Sensirion Ag, Stafa, CH;
Sensirion AG, Stafa, CH;
Abstract
A flow sensor arrangement for determining the flow of a fluid comprises a substrate. A heater is arranged in or on the substrate as well as at least one first thermocouple for generating a first signal proportional to a temperature difference between a location downstream from the heater and a first reference location, and at least one second thermocouple for generating a second signal proportional to a temperature difference between a location upstream from the heater and a second reference location which second reference location is different from the first reference location. In addition, at least one third thermocouple is arranged in or on the substrate for generating a third signal proportional to a temperature difference between the first reference location and the second reference location. Means are provided for determining a sensing signal indicative of the flow of the fluid over the heater and the first and the second thermocouple dependent on the first signal, the second signal and the third signal.