| 发明名称 |
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| 摘要 |
An encoder or an information reading device detects a scale with a probe that is vibrated at a predetermined frequency and amplitude in a predetermined direction. The angular positional relationship between the direction of probe vibration and the scale is detected according to frequency spectrum information of a detection signal obtained by detecting the scale with the vibrating probe. |
| 申请公布号 |
JP2761801(B2) |
申请公布日期 |
1998.06.04 |
| 申请号 |
JP19900265086 |
申请日期 |
1990.10.04 |
| 申请人 |
KYANON KK |
发明人 |
NOSE HIROYASU;MYAZAKI TOSHIHIKO;OGUCHI TAKAHIRO;SAKAI KUNIHIRO;KAWASE TOSHIMITSU |
| 分类号 |
G01B7/00;G01B7/30;G01B7/34;G01D5/245;G01N37/00;G01Q10/04;G01Q10/06;G01Q60/10;G01Q70/04;G01Q80/00;G11B9/00;(IPC1-7):G01B7/30 |
主分类号 |
G01B7/00 |
| 代理机构 |
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代理人 |
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| 主权项 |
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