发明名称 Capacitive distance pick-up
摘要 The invention relates to a capacitive distance pick-up having a plurality of systems consisting in each case of a rule, a vernier and a coupling capacitor of different divisions. The measured voltages generated in the individual systems are phase-shifted with respect to each other. The phase shift is evaluated and serves for the determination of the absolute value of the position of the distance pick-up in the measuring range. The distance measurement can thus be carried out with high accuracy, without reference marking or direction recognition. In a rotationally symmetrical arrangement, the distance pick-up is particularly suitable for building into hydraulic cylinders or other components whose travel is intended to be measured.
申请公布号 DE3834200(A1) 申请公布日期 1990.04.12
申请号 DE19883834200 申请日期 1988.10.07
申请人 MANNESMANN REXROTH GMBH, 8770 LOHR, DE 发明人 ROBOHM, MICHAEL, DIPL.-ING. (FH), 8770 LOHR, DE
分类号 G01B7/00;G01D5/241 主分类号 G01B7/00
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