| 发明名称 | Control apparatus and measuring apparatus | ||
| 摘要 | 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. | ||
| 申请公布号 | US8810181(B2) | 申请公布日期 | 2014.08.19 |
| 申请号 | US201113339844 | 申请日期 | 2011.12.29 |
| 申请人 | Mitutoyo Corporation | 发明人 | Usui Tomohiro;Terashita Yo |
| 分类号 | H02P29/00;H02P21/00 | 主分类号 | H02P29/00 |
| 代理机构 | Greenblum & Bernstein, P.L.C. | 代理人 | Greenblum & Bernstein, P.L.C. |
| 主权项 | 1. A control apparatus for controllably driving a drive mechanism which displaces a movable member, comprising: an electric-current detector configured to detect electric current for driving the drive mechanism; a speed controller configured to set a target electric-current according to a drive speed at which the drive mechanism drives the movable member; and an electric-current controller 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 detector, to set an output electric-current to be output to the drive mechanism, wherein the electric-current controller changes at least one of the integral gain and the proportional gain according to the drive speed of the drive mechanism, such that when the drive speed of the drive mechanism increases from a previously set drive speed, the electric-current controller sets at least one of the integral gain and the proportional gain to be smaller than a previously set gain; and when the drive speed of the drive mechanism decreases from the previously set drive speed, the electric-current controller sets at least one of the integral gain and the proportional gain to be larger than the previously set gain. | ||
| 地址 | Kanagawa JP | ||