High-sensitivity piezocomposite material and ultrasonic transducer made therefrom
US6277299A · kind A · utility
8Cited by
2References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 25, 1998 |
| Grant date | Aug 21, 2001 |
| Priority date | — |
| Expiry date | Nov 25, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/852
Abstract
A piezoelectrically active conformal filler material is incorporated in a 1-3, 3-3 or 2-2 piezocomposite structure. The piezoelectrically active conformal filler material has a 0-3 structure and is made of fine piezoelectric ceramic particles surrounded by a conformal polymer matrix. Using such piezocomposite material, the reception and transmission sensitivity (efficiency) of a piezoelectric layer can be improved without any increase in the acoustic impedance of the final piezoelectric layer. The resulting piezocomposite material can be used to fabricate ultrasonic transducer arrays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.