Acoustic transducer
US5357486A · kind A · utility
31Cited by
10References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 2, 1992 |
| Grant date | Oct 18, 1994 |
| Priority date | — |
| Expiry date | Dec 2, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S310/80
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A piezoelectric film strip is wrapped a plurality of times around a flexible inert mandrel that has standoff collars on each end. The film-wrapped mandrel is hermetically sealed inside a hollow rigid inert cylinder. Electrodes provide electrical communication with the film strip which forms the active element of the transducer. Variations in hydrodynamic pressure flex the film strip in tension to generate a voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.