Position control device, measuring device and machining device
US7319909B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 17, 2006 |
| Grant date | Jan 15, 2008 |
| Priority date | — |
| Expiry date | Jul 28, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/42091
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
In a quadruple loop position control device (1) including: a drive controller (5) having a current control loop that controls motor current (I) and a motor speed control loop that controls a motor speed (Vm); a speed control loop (3) that controls a speed (Vd) of a driven body (2); and a position control loop (4) that controls a position (Pd) of the driven body (2), an adder (6) that adds an output value from the position control loop (4) and an output value from the speed control loop (3) and inputs an addition result to the motor speed control loop is provided. By providing the adder (6), the position control device (1) functions as a control device of a first-order system, so that occurrence of an overshoot may securely be avoided even when respective transfer functions of the position control device (1) are set for purpose of suppressing a vibrating behavior of the driven body (2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.