Method for adjusting crystal hydrophone output
US5299172A · kind A · utility
5Cited by
5References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 3, 1993 |
| Grant date | Mar 29, 1994 |
| Priority date | — |
| Expiry date | Feb 3, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for precisely adjusting the sensitivity of a polarized crystal hydrophone by applying a voltage signal to the hydrophone. Voltage pulses having selected characteristics are repeatedly applied to the crystal until it is determined that the sensitivity of the crystal has reached a desired level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.