Friction flowmeter with improved software
US6151557A · kind A · utility
43Cited by
11References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 1998 |
| Grant date | Nov 21, 2000 |
| Priority date | — |
| Expiry date | Jan 13, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/34
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method in a pressure transmitter and a pressure transmitter for determining a mass flow rate of a fluid in a conduit measure a differential pressure between two points in the fluid, where the conduit has a substantially constant cross-sectional area between the two points. In one aspect, the mass flow rate is calculated by multiplying the square-root of the differential pressure by a mass flow constant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.