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:
Apr. 16, 2013
Filed:
Oct. 21, 2010
Axel Pfau, Arlesheim, CH;
Vivek Kumar, Muttenz, CH;
Anastasios Badarlis, Birsfelden, SE;
Endress + Hauser Flowtec AG, Reinach, CH;
Abstract
Thermal, flow measuring device and method for operating a thermal, flow measuring device, wherein the thermal, flow measuring device has a first sensor with a first heatable resistance thermometer and at least an additional, second sensor with a second heatable resistance thermometer. A decision coefficient is calculated according to the formula DC=(PC−PC)/PC, with PC(t=t)=P(t)/(T(t=t)−T(t=t)) and PC(t=t)=P(t)/(T(t=t)−T(t=t)), with P being the heating powers consumed by the corresponding resistance thermometers at the points in time t, and T being the temperature values; wherein the value of the decision coefficient indicates the flow direction of a measured medium in the measuring tube.