Open channel flow meter
US3996798A · kind A · utility
12Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 12, 1976 |
| Grant date | Dec 14, 1976 |
| Priority date | — |
| Expiry date | Jan 12, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/002
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In an open channel in which liquid flows, there are provided a first flow velocity measuring device and a second liquid level or height measuring device. At flows above a predetermined level the first and second devices are coupled to give a flow quantity readout. Below the predetermined flow level the height measuring device is automatically uncoupled from the velocity measuring device and is coupled to a computer in which the output of the height measuring device is substituted in a known formula relating height with flow quantity to give a flow quantity readout, the readouts for all levels being substantially continuous.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.