Transducer having enhanced acceleration cancellation characteristics
US3988620A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 24, 1972 |
| Grant date | Oct 26, 1976 |
| Priority date | — |
| Expiry date | May 24, 1992 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/186
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The specification discloses a pressure-sensitive transducer including two spaced pressure-sensitive subassemblies having matched parameters and which are electrically coupled together in a manner to minimize the effect of acceleration on the transducer. In one embodiment, each subassembly comprises a pair of piezoelectric crystals attached to opposite sides of a conductive mounting plate. The two plates are supported on opposite sides of an insulated annular spacer ring in a manner to face like poled surfaces of the crystals in the same directions. The crystals are electrically coupled together in parallel by conductors which couple each pair of crystals of a subassembly together and to the mounting plate of the other assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.