Air core gauge with zero pointer return related application
US4758784A · kind A · utility
11Cited by
10References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 1987 |
| Grant date | Jul 19, 1988 |
| Priority date | — |
| Expiry date | Jan 27, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R11/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An air core gauge having orthogonally related coils that react with a rotor magnet to angularly position an indicating pointer, suitable for use as either a pressure,temperature, or fuel gauge. All-attitude pointer zero return is achieved with a stationary magnet, and voltage regulation is eliminated with a zener diode in series with one of the coils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.