发明名称 |
METHOD AND SYSTEM FOR CALIBRATING A ROTARY ENCODER AND MAKING A HIGH RESOLUTION ROTARY ENCODER |
摘要 |
<p>A calibration system for a rotary encoder comprises a rotary encoder disposed on a manufacturing substrate, the rotary encoder including an encoder pattern. The calibration system also includes a calibration pattern written onto a surface of the substrate, the calibration pattern comprising a ring that includes a grating pattern, where a radial position of the grating pattern corresponds to an error value of the position of the encoder pattern. A method of calibrating the errors of a rotary encoder and a method of fabricating a high resolution rotary encoder on a surface of a manufacturing substrate are also provided.</p> |
申请公布号 |
EP2119014(A2) |
申请公布日期 |
2009.11.18 |
申请号 |
EP20070871594 |
申请日期 |
2007.11.28 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
WANG, WEI;BIYIKLI, LEVENT;AGUIRRE, LUIS A. |
分类号 |
G01D5/347 |
主分类号 |
G01D5/347 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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