专利名称：Displacement measuring device with
capacitive sensing
发明人：Larry K Baxter,Gerardus C. M. Meijer申请号：US14226168申请日：20140326公开号：US09714846B2公开日：20170725
专利附图：
摘要：A dial indicator for accurately measuring displacement of a part along a
measurement axis. The dial indicator includes scale electrodes of a given pitch and readerstationary scale electrodes of a given pitch. A reader carries a plurality of reader bars
having a pitch of one half that of the scale electrodes. A set of drive signals of a givenfrequency are applied in different ways to the scale bar electrodes to achieve coarse andfine positions of the reader relative to the scale. One operating mode involves
determining the position of the reader with a coarse measurement relative to the scale,and a fine measurement. These signals can combined to obtain an accurate position overthe reader and position of a spindle reading displaced.
申请人：Chicago Dial Indicator Company
地址：Des Plaines IL US
国籍：US
代理机构：Erickson Law Group, PC
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