Variable signal generator for galvanometer exhibiting hysteresis
US4286212A · kind A · utility
6Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1978 |
| Grant date | Aug 25, 1981 |
| Priority date | — |
| Expiry date | Sep 8, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R5/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Switch means having a predetermined number of switch positions normally applies any selected one of the same predetermined number of separate control signals to a galvanometer in accordance with the switch position to which the switch means is operated. However, in response to each operation of the switch means between switch positions, a reference signal is applied to the galvanometer for a given time. This overcomes the degrading effect of hysteresis on galvanometer accuracy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.