METHOD OF DETECTING SOUND IN WATER USING PIEZOELECTRIC-POLYMER COMPOSITES WITH O-3 CONNECTIVITY
Assignee
Filed
Nov 15, 1988
Granted
Dec 11, 1990
Location
STATE COLLEGE PA US
Abstract
A hydrophone device is provided with a piezoelectric ceramic-polymer composite of 0-3 connectivity in which the piezoelectric filler comprises a solid solution of PBTiO3 -BiFeO3 wherein the solid solution contains 50-80 wt. % of the BiFeO3. The piezoelectric ceramic-polymer composite has large hydrostatic piezoelectric charge and voltage coefficients which are desirable in hydrophone devices.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Aug 29, 1989
Rescinded
Jul 12, 1990
Duration
10 months
Inventor
- 1JAYNE R. GINIEWICZ
Record Details
- Patent number
- US 4977547
- Application
- 07271579
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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