Wear plate for piezoelectric ultrasonic transducer arrays
US4211949A · kind A · utility
235Cited by
8References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 8, 1978 |
| Grant date | Jul 8, 1980 |
| Priority date | — |
| Expiry date | Nov 8, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K11/02
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A linear transducer array for 90.degree. or other wide angle sector scans is covered by a body contacting wear plate made of a material such as filled silicone rubber or polyurethane epoxy in which the longitudinal sound velocity is equal to or less than that in the body and in which the acoustic impedance for longitudinal sound waves is approximately equal to that of the body. Refraction, if it occurs, enhances the field of view without reducing the transmission of acoustic energy. The wear plate provides mechanical support for a fragile front surface matched array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.