| 摘要 |
Device for measuring linear displacement of an object comprising a ruler (rule) or measurement scale 10 which is flexible, carries a graduation and is connected to the object whose displacement is to be measured, and a fixed detector 14 interacting with the graduation of the ruler, characterised in that the ruler 10 constitutes at least part of a flexible linkage passing in a closed loop over two return members 11, 12. <IMAGE>
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