Method of and apparatus for detecting an amount of displacement

Details Method of and apparatus for detecting an amount of displacement Method of and apparatus for detecting an amount of displacement

1995-09-20

1998-02-17

Voeltz, Emanuel T.

Boots, shoes, and leggings

364486, 36457101, 356356, 356358, G01R 2902, G01B 902

Patent

active

057197890

ABSTRACT:
This invention relates to a method of and an apparatus for detecting the amount of displacement of an object by the use of two periodic signals having a predetermined phase difference therebetween which are outputted in conformity with the displacement of the object. The apparatus has means for detecting the two periodic signals, means for calculating the ratio between the two periodic signals, and means for obtaining the amount of displacement of the object from the value of the ratio by reference to prestored data.

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patent: 5347355 (1994-09-01), Eguchi

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