Non-resonant ultrasonic transducer array for a phased array imaging system using1/4 .lambda. piezo elements
US4414482A · kind A · utility
7Cited by
9References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 1981 |
| Grant date | Nov 8, 1983 |
| Priority date | — |
| Expiry date | May 20, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49945
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A phased array transducer is disclosed for transducing ultrasound of a predetermined frequency. The transducer includes a number of piezoelectric elements, all having the same natural frequency, and having two surfaces located opposite to each other, each provided with an electrode. The distance between the two surfaces of each element is one quarter of the wavelength of the ultrasound produced by the transducer within the piezoelectric material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.