Ultrasonic fluid flow meter housing with acoustically matched base
US8402840B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2010 |
| Grant date | Mar 26, 2013 |
| Priority date | — |
| Expiry date | Apr 24, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/662
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for sensing fluid flow within a pipe, which pipe has a pipe wall, is provided. The device includes a sensor housing and a fluid flow meter. The sensor housing includes at least one pressure vessel enclosure and hardware for mounting the enclosure on an exterior surface of the pipe wall. The enclosure includes a base, side walls, and a cap. The enclosure base has a pipe-side surface that mates with the exterior surface of the pipe wall. The enclosure base and the pipe wall have substantially similar resonant frequencies and acoustic impedance. The sensor housing is adapted to be attached to the pipe wall such that the pipe-side surface of the base is mated with the exterior surface of the pipe wall. The fluid flow meter includes a plurality of ultrasonic sensors disposed within the at least one pressure vessel enclosure. Each sensor has a transmitter and a receiver. The transmitters are adapted to transmit signals at one or more frequencies, including frequencies that are substantially equal to the resonant frequencies of the base and pipe wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.