Method and apparatus for dry testing water-immersible acoustic transducers
US4838070A · kind A · utility
11Cited by
5References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 9, 1987 |
| Grant date | Jun 13, 1989 |
| Priority date | — |
| Expiry date | Jul 9, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K11/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of testing piezo-electric transducers includes locating one end (11) of a rod (10) of solid material over the active head (20) of the transducer, the rod (10) simulating the normal acoustic impedance presented to the transducer by the normal medium, in which the transducer is intended to operate, energizing the transducer and detecting the acoustic wave propagated through the rod at the other end of the rod. A loading rod for use in testing a piezo-electric transducer is an elongated solid body so dimensioned as to simulate the normal operating acoustic impedance presented to a piezo-electric transducer to be tested.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.