Friction flowmeter
US6253624A · kind A · utility
24Cited by
13References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 1998 |
| Grant date | Jul 3, 2001 |
| Priority date | — |
| Expiry date | Jan 13, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/50
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pressure transmitter produces signals indicative of a flow in a pipe. The transmitter has a pressure sensor that is fluidly coupled to two ports in the pipe, and the pipe has a substantially constant cross-section between the two ports. Aspects of the invention include a circuit coupled to the pressure sensor that produces a digital value related to the fluid flow as a function of the pressure difference between the two ports.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.