ACOUSTIC SENSOR
Assignee
INNOVATIVE TRANSDUCERS INC., A CORP. OF TX.
Filed
Jul 10, 1990
Granted
Nov 1, 1994
Location
AZLE TX US
Abstract
A pressure compensated hydrophone assembly consists of a hollow mandrel that has an outer surface. The central portion of the outer surface of the mandrel defines a concavity. A flexible, resilient piezoelectric film is wrapped several times around the mandrel. The volume between the inner wrap of the film and the concavity on the outer surface of the mandrel serves as a pressure compensation chamber. The hydrophone is responsive to varying hydrodynamic pressure fields but is substantially inert to acceleration forces, localized impacts and variations in hydrostatic pressure.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Mar 15, 1991
Rescinded
Apr 21, 1994
Duration
3 years, 1 month
Inventor
- 1RICHARD E. PEARCE
Record Details
- Patent number
- US 5361240
- Application
- 00755052
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records