Patent · US Expired

Method for coordinate measurement of workpieces

US5425180A · kind A · utility

14Cited by

7References

9Claims

0Family size

Assignee

Carl Zeiss Stiftung · DE

Inventor

Karl-Hermann Breyer · Heidenheim, DE

Key dates

Filing date	Feb 4, 1993
Grant date	Jun 20, 1995
Priority date	—
Expiry date	Feb 4, 2013

Classification

Technology area (CPC G)Physics
CPC primaryG05B2219/37218
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

In the measurement of workpieces on a coordinate measuring machine having a work-contacting probe head of the switching type, the course over time of the contact signal is stored within a time interval which at least spans the procedural time of contact-signal development. After comparison or correlation with a prerecorded sample signal which has also been stored, the exact time of initial contact or the exact scanning coordinates are then subsequently computed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.