Patent · US Expired

Probe head for a coordinate-measuring instrument

US4882848A · kind A · utility

33Cited by

4References

19Claims

0Family size

Assignee

Carl-Zeiss-Stiftung, Heidenheim/Brenz · DE

Inventors

Karl-Hermann Breyer · Heidenheim, DE
Klaus Herzog · Oberkochen, DE
Franz Szenger · Königsbronn, DE

Key dates

Filing date	Jul 28, 1988
Grant date	Nov 28, 1989
Priority date	—
Expiry date	Jul 28, 2008

Classification

Technology area (CPC G)Physics
CPC primaryG01B7/012
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A probe head for a coordinate-measuring instrument has a torsionally rigid, play-free and friction-free probe-suspension system which defines a three-dimensional coordinate system wherein the work-contact pin of the probe is deflectable in all three directions in space. For each of the three coordinate directions, an incrementally operating displacement-measuring system is provided, and each such system is associated with a zero indicator for recognition of the zero position of the system. Upon initial contact of the probe with the object to be measured, a trigger pulse is produced via a sensor. A subsequent electronic system processes the different signals delivered by the probe head so that optional operation is available either as a switching probe head or as a measuring probe head.

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