Devices for detecting fluid flow
US4196621A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1978 |
| Grant date | Apr 8, 1980 |
| Priority date | — |
| Expiry date | Jun 21, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/3266
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a device for detecting fluid flow, an elongated body, such as a wire, is supported so that when a substantial portion of its length is exposed to a flowing fluid with the longitudinal axis of said portion arranged substantially transverse to the fluid flow, said portion can be caused to vibrate by vortex shedding; an electromechanical transducer is coupled to the body so as to produce an electrical signal in response to the vibration; and either the presence of the electrical signal is detected, for operation as a safety switch, or the frequency of the vibrations is detected, for measurement of fluid flow rate, fluid velocity etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.