发明名称 |
A method of marking a mechanical element, an encoding scheme, a reading means for said marking and an apparatus for determining the position of said element |
摘要 |
<p>A mechanical element comprising an optically readable marking, the optically readable marking comprising a surface having a first reflectivity and a plurality of areas having a second reflectivity, characterised in that: said areas having a second reflectivity have a width which is generally constant in a direction parallel to the direction of movement of the mechanical element. <IMAGE></p> |
申请公布号 |
GB9807020(D0) |
申请公布日期 |
1998.06.03 |
申请号 |
GB19980007020 |
申请日期 |
1998.04.02 |
申请人 |
J C BAMFORD EXCAVATORS LIMITED |
发明人 |
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分类号 |
B25H7/04;F15B15/14;F15B15/28;G01D5/249 |
主分类号 |
B25H7/04 |
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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