Resistive wire mass flow meters
US6601448B1 · kind B1 · utility
3Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2002 |
| Grant date | Aug 5, 2003 |
| Priority date | — |
| Expiry date | Feb 20, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/6986
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention concerns a mass flow meter comprising at least a resistive wire (1 or 2) placed in the path of a fluid whereof the flow rate is to be measured, means (30) for applying to the wire current pulses, measuring means for determining the cooling speed of the wire between said pulses. The invention is characterised in that it comprises means for determining, on the basis of at least one measurement of the cooling speed, the type of fluid on the path of which the resistive wire is arranged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.