Wideband piezoelecric transducer for harmonic imaging
US6532819B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Feb 29, 2000 |
| Grant date | Mar 18, 2003 |
| Priority date | — |
| Expiry date | Feb 29, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/8954
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present disclosure relates to an imaging system for harmonic imaging of an object in a medium. The system comprises a transducer formed of a single crystal of a piezoelectric material, a transmitter for transmitting waves into the medium, a receiver for receiving echoed waves from the medium, and a control system electrically connected to the transmitter and the receiver which is used control the operation of the transmitter and interpret signals received by the receiver. In a preferred embodiment, the single crystal of piezoelectric material comprises a PMN-PT material or a PZN-PT material. Through use of this material, −6 dB bandwidths of at least approximately 95% are obtainable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.