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专利名称：Absolute position measuring device发明人：Sasaki, Kouji申请号：EP03000448.5申请日：20030110公开号：EP1327862A3公开日：20030917
专利附图：
摘要：The absolute position measuring device comprises a main body, a spindleprovided movably in the main body, two sets of rotary encoders, an arithmetical
operation section, and a display section. The rotary encoders originate two phase signalsof different periods in accordance with the amount of movement of the spindle. The
arithmetical operation section makes arithmetical operation on the phase signal to obtainthe absolute position of the spindle. The display section displays the absolute position indigital format. The two phase signals have a different phase difference at a differentposition of the spindle. The arithmetical operation section comprises phase signalprocessing section for comparing the two phase signals to obtain a phase differencebetween the phase signals, and absolute position calculating section for calculating theabsolute position of the spindle from the phase difference obtained by the phase signalprocessing section.
申请人：Mitutoyo Corporation
地址：20-1, Sakado 1-chome, Takatsu-ku, Kawasaki Kanagawa 213-0012 JP
国籍：JP
代理机构：Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät
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