Process for coordinate measurement on workpieces

Details Process for coordinate measurement on workpieces Process for coordinate measurement on workpieces

1996-07-14

1999-01-26

Gutierrez, Diego F. F.

Geometrical instruments

Gauge

Coordinate movable probe or machine

33559, 36447437, 702168, G01B 512

Patent

active

058626042

ABSTRACT:
A sensor in the probe head of a coordinate measuring device supplies probe signals. The first, and if necessary, higher time derivatives of the probe signals are formed and evaluated for the exact determination of the moment of contact of the probe head with a workpiece to be measured. During the evaluation, the time course of the differentiated signals is examined by means of automatically generated trigger thresholds.

REFERENCES:
patent: 4177568 (1979-12-01), Werner et al.
patent: 4391044 (1983-07-01), Wheeler
patent: 4455755 (1984-06-01), Fritsche et al.
patent: 5425180 (1995-06-01), Breyer
patent: 5579246 (1996-11-01), Ebersbach et al.
patent: 5726917 (1998-03-01), Staaden

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