Non-contacting ultrasonic transducer
US6781287B1 · kind B1 · utility
8Cited by
9References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2002 |
| Grant date | Aug 24, 2004 |
| Priority date | — |
| Expiry date | Jan 16, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/2968
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ultrasonic transducer for sensing liquid within an article, such as a vassel or pipe, without contacting the liquid has a body, a sealed capsule of a flexible material containing a liquid capable of transmitting ultrasonic energy carried by the body from which a head portion of the capsule extends to contact a wall of the article. Within the body is a piezo-electric element in contact with a portion of the sealed capsule to transmit ultrasonic energy to and receive energy from the liquid in said capsule as it passes through the capsule head without the need for a coupling compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.