Voltage to air pressure transducer
US4084539A · kind A · utility
16Cited by
7References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 24, 1976 |
| Grant date | Apr 18, 1978 |
| Priority date | — |
| Expiry date | Sep 24, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B50/006
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A means for providing a variable fluid pressure responsive to changes in a measured variable includes a fluid pressure reservoir and electrically controlled fluid supply and exhaust valves connected thereto. A pressure-to-voltage transducer is connected at the output of the reservoir and in turn is connected to a comparison means along with means for providing an electrical signal representative of a measured variable. The comparison means provides a difference signal, which difference signal is utilized to control the supply and exhaust valves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.