Electromagnetic piezoelectric acoustic sensor
US7770456B2 · kind B2 · utility
22Cited by
8References
33Claims
0Family size
Inventors
Key dates
| Filing date | Jun 4, 2004 |
| Grant date | Aug 10, 2010 |
| Priority date | — |
| Expiry date | Apr 20, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/101
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An acoustic sensor comprises at least one resonant element. A driver comprises an electrical coupling means and an electromagnetic field source arranged such that the electrical coupling means transfers currents to the electromagnetic field source. The electromagnetic field source produces an electromagnetic field that drives the resonant elements to produce acoustic waves directed to a predetermined part of a test sample. Also provided is an electromagnetic detector for receiving the acoustic spectrum omitted from a test sample and an electrical circuit connected to the drive around detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.