Control apparatus and measuring apparatus
US8810181B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2011 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Aug 28, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B21/047
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A control apparatus for controllably driving a drive mechanism which displaces a movable member, includes: an electric-current detecting unit configured to detect electric current for driving the drive mechanism; a speed control unit configured to set a target electric-current according to a drive speed at which the drive mechanism is caused to drive the movable member; and an electric-current control unit configured to multiply, by an integral gain and a proportional gain, an electric-current deviation between a target electric-current and a detection electric-current detected by the electric-current detecting unit to set output electric-current to be output to the drive mechanism, wherein the current control unit changes at least one of the integral gain and the proportional gain according to the drive speed of the drive mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.