Work position error detecting apparatus
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United States of America Patent
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May 16, 1989
Grant Date -
N/A
app pub date -
Jun 18, 1987
filing date -
Jun 19, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A work position error detecting apparatus comprises at least three one dimensional sensors for generating outputs dependent on a detected position of a work, where the one dimensional sensors are arranged so that directions in which the position of the work is detected is mutually different among the one dimensional sensors, a memory device for pre-storing outputs of each of the one dimensional sensors at a reference position of the work, and a computing unit for calculating and outputting a position error quantity of the work from the reference position based on outputs of the one dimensional sensors and the outputs of the one dimensional sensors at the reference position pre-stored in the memory device.
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