Resistive wire mass flow meters
US6813945B1 · kind B1 · utility
0Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2002 |
| Grant date | Nov 9, 2004 |
| Priority date | — |
| Expiry date | Dec 2, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/6986
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A flow meter which includes a resistive wire placed in the path of a fluid whereof the flow rate is to be measured. A processing unit for applying current pulses to the wire and for determining the cooling speed of the wire between the pulses. The processing unit also determines a cooling parameter and determines from the cooling parameter data concerning a possible operational drift or anomaly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.