Device for measuring rotational angles of a rotating shaft
US4188820A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 5, 1978 |
| Grant date | Feb 19, 1980 |
| Priority date | — |
| Expiry date | Jul 5, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/247
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for measuring rotational angles of a rotating shaft of a machine, and comprising transducers signals of which being released by one or several reference angle signs or a machine characteristic phenomenon respectively, and being input to a processing unit. The processing unit comprises a frequency multiplier circuit and a counter the frequency multiplier circuit multiplying the signal of one or several reference angle signs, with the counter counting the multiplied signals and being resettable and startable by either a reference angle signal or the signal released by the machine characteristic phenomenon and being blockable by the respective other signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.