Flexible piezoelectric switch activated metering pulse generators
US4868566A · kind A · utility
48Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 1988 |
| Grant date | Sep 19, 1989 |
| Priority date | — |
| Expiry date | May 3, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06M1/276
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a metering pulse generator, a metering element engages a spring member to effect a gradual bending movement in one direction followed by a rapid return movement during which a pulse signal is developed by a piezoelectric material on the spring member . Energy is absorbed during each such rapid return movement of the spring member to provide damping, inhibit oscillations and effect reliable generation of a single pulse signal which is applied to an amplifier for transmission to a monitoring station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.