Method and device for measuring flows of fluids, based on temperature-differences between two heat-conducting bodies, one of which contains the fluid-flow
US5970790A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1996 |
| Grant date | Oct 26, 1999 |
| Priority date | — |
| Expiry date | Nov 14, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/6888
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Method and device for measuring flows of fluids, such as liquids and gases, flowing through a tube (16). The tube is heat-conducting and is heated at a certain location (18), with the heat on the one hand moving by way of the tube wall (17) in a direction contrary to the fluid flow (15) and on the other hand flowing off into a heat-conducting body (20) which preferably extends substantially parallel to the tube. The temperature difference between the tube wall (17) and the conducting body (20) is measured, e.g., by a thermopile (19) and is a measure of the flow gone past. The device preferably includes a thermopile (19) for carrying out the measurement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.