Spindle control system
US4207504A · kind A · utility
13Cited by
2References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1978 |
| Grant date | Jun 10, 1980 |
| Priority date | — |
| Expiry date | Sep 7, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/50031
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A speed detector produces a spindle speed signal proportional to the revolving speed of a spindle. A specified position detector provides a specified position signal when the spindle assumes a specified rotational position. A spindle motor speed control unit controls the spindle motor so that the motor speed agrees with a speed command. When spindle orientation is requested, one integrator circuit responds to the specified position signal to integrate the spindle speed signal. The output from the integrator circuit is applied to the speed control unit in place of the speed command.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.