基本信息:
- 专利标题： Encoder
- 专利标题（中）：Codiereinrichtung。
- 申请号：EP88113794.7 申请日：1988-08-24
- 公开(公告)号：EP0304893A2 公开(公告)日：1989-03-01
- 发明人： Yanagisawa, Yoshihiro , Morikawa, Yuko , Matsuda, Hiroshi , Kawada, Haruki , Sakai, Kunihiro , Kawade, Hisaaki , Eguchi, Ken , Kawakami, Eigo , Kawase, Toshimitsu , Yoshii, Minoru , Saitoh, Kenji , Yamano, Akihiko , Nose, Hiroyasu
- 申请人： CANON KABUSHIKI KAISHA
- 申请人地址： 30-2, 3-chome, Shimomaruko, Ohta-ku Tokyo JP
- 专利权人： CANON KABUSHIKI KAISHA
- 当前专利权人： CANON KABUSHIKI KAISHA
- 当前专利权人地址： 30-2, 3-chome, Shimomaruko, Ohta-ku Tokyo JP
- 代理机构： Tiedtke, Harro, Dipl.-Ing.
- 优先权： JP212153/87 19870825; JP212154/87 19870825; JP305747/87 19871204; JP305748/87 19871204; JP309421/87 19871209; JP201306/88 19880812; JP201307/88 19880812; JP201308/88 19880812
- 主分类号： G11B9/00
- IPC分类号： G11B9/00 ; G01N27/00 ; G01D5/244 ; H03M1/00
摘要：
An encoder includes an electrically conductive reference scale having surface steps formed at predetermined positions; an electrically conductive probe having a tip disposed opposed to the reference scale; wherein the reference scale and the probe are relatively movable in a direction different from the opposing direction of the tip of the probe and the reference scale; a portion for applying an electric voltage to between the reference scale and the probe; a portion for detecting a change in a tunnel current between the reference scale and the probe, to between which the electric voltage is applied by the voltage applying portion at the time of the relative movement between the scale and the probe, the detecting portion detecting the change in the tunnel current when the probe passes a position opposed to a surface step of the reference scale; and portion for detecting the amount of the relative movement between the scale and probe, on the basis of the detection by the change detecting portion.
摘要（中）：
编码器包括具有在预定位置形成的表面台阶的导电参考标尺; 导电探针，其具有与参考标尺相对设置的尖端; 其中所述参考标尺和所述探针在与所述探针的尖端和所述参考标尺的相反方向不同的方向上相对移动; 用于将电压施加到参考刻度尺与探针之间的部分; 用于检测参考标尺和探针之间的隧道电流变化的部分，在刻度尺和探针之间的相对运动时由电压施加部施加电压，检测部分检测 当探针通过与参考刻度的表面台阶相对的位置时隧道电流的变化; 以及基于变化检测部的检测来检测标尺与探针之间的相对移动量的部分。
公开/授权文献:
- EP0304893B1 Encoder 公开/授权日：1995-07-19
IPC结构图谱:
| G | 物理 |
| --G11 | 信息存储 |
| ----G11B | 基于记录载体和换能器之间的相对运动而实现的信息存储 |
| ------G11B9/00 | 利用G11B3/00至G11B7/00的任一大组均未包括的方法或装置进行记录或重现；为此所用的记录载体 |