Regenerative method and apparatus to control an elastic reset torque in movable apparatus
US4180774A · kind A · utility
3Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 1978 |
| Grant date | Dec 25, 1979 |
| Priority date | — |
| Expiry date | May 24, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R17/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The suspension of movable system instruments, for example, a galvanometer, introduces elastic reset torques upon deflection. To compensate for such torques and render the apparatus essentially independent of the deflection torques, an opto-electronic device provides an output signal representative of the deflection which is combined with the deflection voltage applied to the galvanometer to at least in part compensate for the reset torque introduced by the moving system suspension.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.