Acoustic sensor using curved piezoelectric film
US6937736B2 · kind B2 · utility
65Cited by
12References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 5, 2002 |
| Grant date | Aug 30, 2005 |
| Priority date | — |
| Expiry date | May 8, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/0204
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An acoustic sensor device comprising a substrate having a first surface and a second surface opposite the first surface, and an aperture formed therethrough, the second surface having a curved portion; a layer of piezoelectric film having a first surface disposed on the curved portion of the substrate second surface; and a layer of pliable material disposed on a second surface of the piezoelectric film opposite the first surface for contacting with an object to be sensed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.