Analog electro-fluidic signal transducer
US4441526A · kind A · utility
Inventors
Key dates
| Filing date | Nov 16, 1981 |
| Grant date | Apr 10, 1984 |
| Priority date | — |
| Expiry date | Nov 16, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2224
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An analog electro-fluidic signal transducer utilizing one or a tandem series of laminar proportional amplifiers. The transducer has input passages at a varying pressure differential produced by movements of a piezoelectric bender bimorph between opposed nozzles in a pressurized chamber. The pressure in the chamber and the excursion of the bender between the nozzles relative to the nozzle diameters are limited to minimize turbulence and achieve a pressure differential between the input passages that varies proportionally to or as an analog of a voltage applied to the bender. The pressure differential between the input passages is amplified by the amplifier or plural amplifiers in tandem series.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.