Digital measurement of relative displacement using stored correc

Details Digital measurement of relative displacement using stored correc Digital measurement of relative displacement using stored correc

1988-11-14

1989-11-07

Gruber, Felix D.

Boots, shoes, and leggings

36457101, 36457107, 364900, 250231SE, 356373, 356387, G01B 1102, G01B 2102, G01C 2500, G06F 1100

Patent

active

048796719

ABSTRACT:
A method of digitally measuring displacement increments in which, for the relative displacement of a scanner and a scale having regularly spaced graduations each defining an increment of displacement, correction values and the signals are stored at respective addresses corresponding to the relative displacement and respective locations on the scale, only where the correction exceeds a predetermined threshold value. During the measurement, the measured values, which can correspond to each graduation and to interpolation values between each graduation and the next graduation to be scanned, are corrected with the corrected value addressed as each location is reached.

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