Mass flowmeter for measuring by the CT method
US7028544B2 · kind B2 · utility
2Cited by
7References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2004 |
| Grant date | Apr 18, 2006 |
| Priority date | — |
| Expiry date | Apr 29, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/6847
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A mass flowmeter of the thermal type provided with a flow sensor with a flow tube through which a fluid can flow during operation, with a temperature sensor in an upstream position (A) and a heater (H) in a downstream position (B), and power control means and temperature measuring means for keeping the temperature difference between A and B at a predetermined constant value. Between A and B, the flowmeter is provided with means for preventing the temperature at A from rising owing to thermal conduction from B to A via the tube in the case of no flow or a weak flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.