Magnetostrictive actuator with feedback compensation
US4585978A · kind A · utility
17Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1984 |
| Grant date | Apr 29, 1986 |
| Priority date | — |
| Expiry date | Dec 4, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N35/80
Abstract
A linear magnetostrictive actuator with feedback compensation including a force train that has at least one magnetostrictive element, an excitation component disposed on or within the actuator, a feedback apparatus whose output signal is proportional to the magnetic induction within the magnetostrictive element, and actuator control circuitry for providing the difference signal resultant between the feedback output signal and the external signal, such that positional displacement error is compensated by closed loop operation of the actuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.