Correcting measurement errors

Details Correcting measurement errors Correcting measurement errors

1996-09-19

1998-07-14

Fulton, Christopher W.

Geometrical instruments

Gauge

Coordinate movable probe or machine

33702, 33703, 33549, 36457101, 364560, G01B 5008, G01B 7008

Patent

active

057785490

ABSTRACT:
A method of correcting measurement errors in a measurement robot resulting from relative movements between an object to be measured and a measurement probe comprises the steps of detecting the accelerations at the probe, detecting the accelerations at or close to the object to be measured, calculating the correction data reproducing the relative movement from the measured accelerations and correcting the measured values recorded by the measurement robot with the correction data. The robot serves for determining shape and/or coordinates of an object to be measured, with a base unit, at least one movable measurement probe arranged on the base unit and a holding device arranged on the base unit for holding the object to be measured, wherein first acceleration are arranged on or close to the measurement probe, and second acceleration pickups are provided on the base unit, and an evaluation device is provided which calculates correction data from the measured data of the first and second acceleration pickups.

REFERENCES:
patent: 4333238 (1982-06-01), McMurty
patent: 4782598 (1988-11-01), Guarini
patent: 5579246 (1996-11-01), Ebersbach et al.

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