Piezoelectric sensor
US4775816A · kind A · utility
12Cited by
9References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 9, 1987 |
| Grant date | Oct 4, 1988 |
| Priority date | — |
| Expiry date | Nov 9, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L23/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A piezoelectric sensor adapted for incorporation into a high pressure fuel line employs a pair of piezoelectric transducer elements which are mounted in diametrically opposed bores of a main body. The body forms an axially extending fluid conduit. The main body also has a deformable wall section adjacent the transducer elements. A conductor ring extends the circumference of the main body. The transducer elements electrically connect with the ring so that a pressure pulse traversing the conduit deforms the wall section and produces a mechanical stress on the transducer elements to generate a voltage signal at the conductor ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.