Method for registering flow and a thermal, flow measuring device
US9046397B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2010 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Dec 22, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/72
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A for operating a thermal, flow measuring device having a first sensor having a first heatable, resistance thermometer and at least one additional, second sensor having a second heatable, resistance thermometer, wherein a decision coefficient is calculated according to the formula DC=(PC1−PC2)/PC1, wherein PC1(t=t1)=P1,1(t1)/(T1,heated;actual(t=t1)−Tmedium;actual(t=t1)) and PC2(t=t2)=P2,2(t2)/(T2,heated;actual(t=t2)−Tmedium;actual(t=t2)), with P being the heating powers absorbed by the corresponding resistance thermometers at the points in time t and the temperature values T, wherein the value of the decision coefficient shows flow direction of a measured medium in the measuring tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.