Data processing: measuring – calibrating – or testing – Calibration or correction system – Position measurement
Patent
1998-03-25
1999-09-21
Barlow, John
Data processing: measuring, calibrating, or testing
Calibration or correction system
Position measurement
702106, 33706, G06F 1100
Patent
active
059566590
ABSTRACT:
An arrangement as well as a method for the automatic correction of error-containing scanning signals, which contain defined deviations from the ideal signal shape, of incremental position measuring devices is disclosed, wherein an ideal signal shape is presupposed by a downstream arranged evaluation unit. In this case the scanning signals are supplied to a processor unit, and correcting values are determined by means of a correction algorithm which are converted in turn into appropriate control signals. The analog scanning signals as well as the control signals are supplied to a correction unit, which contains several adjustment possibilities for correcting the error-containing scanning signals by the control signals acting on them. The processor unit as well as the correction unit are arranged in such a way that scanning signals, which have already passed through the correction unit, are present at the input side of the processor unit.
REFERENCES:
patent: 4225931 (1980-09-01), Schwefel
patent: 4334150 (1982-06-01), Herbst et al.
patent: 4462083 (1984-07-01), Schwefel
patent: 4490914 (1985-01-01), Spies
patent: 4595991 (1986-06-01), Spies
patent: 4879473 (1989-11-01), Zumoto et al.
patent: 5235175 (1993-08-01), Mayer
patent: 5627466 (1997-05-01), Spies et al.
"Auto correction of interpolation errors in optical encoders," C. Wang et al. in Proc. Of SPIE vol. 2718, (1996), pp. 439-447.
"Determination and correction of quadrature fringe measurement errors in interferometers," P.L.M. Heydemann, Applied Optics, vol. 20, No. 3, (1981), pp. 3382-3384.
"Optical fringe interpolation with nanometric accuracy," K.P. Birch, Precision Engineering, vol. 12, No. 4, (1990), pp. 195-198.
Holzapfel Wolfgang
Spies Alfons
Barlow John
Bui Bryan
Johannes Heidenhain GmbH
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