发明名称 |
Position measuring device |
摘要 |
A position measuring device including a code having a first code element and a second code element arranged one behind the other in a measuring direction, wherein each of the first and second code elements includes a first partial area and a second partial area, which are complementary to each other and are arranged sequentially in the measuring direction. A scanning device including a plurality of detector elements that scan the first and second code elements and for forming a first scanning signal within the first partial area of the first code element and a second scanning signal within the second partial area of the first code element. An evaluation unit including a comparison device, which compares the first scanning signal with the second scanning signal and forms binary information for the first code element as a function of the comparison.
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申请公布号 |
US7013575(B2) |
申请公布日期 |
2006.03.21 |
申请号 |
US20040500787 |
申请日期 |
2004.07.02 |
申请人 |
DR. JOHANNES HEIDENHAIN GMBH |
发明人 |
STRASSER ERICH;MITTMANN RUDOLF |
分类号 |
G01B7/02;G01D5/249;G01D5/347;G01D5/36;H03M1/06;H03M1/28 |
主分类号 |
G01B7/02 |
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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