Patent · US Expired

Device for precision alignment of shafts, rollers, axles, spindles or machine tools

US6515294B1 · kind B1 · utility

4Cited by

3References

9Claims

0Family size

Assignee

PRUFTECHNIK DIETER BUSCH AG · DE

Inventors

Dieter Busch · Ismaning, DE
Roland Hölzl · Birkenfeld, DE
Andreas Unger · Garching bei München, DE
Florian Pfister · Balingen, DE
Michael Hermann · Tacherting, DE

Key dates

Filing date	Mar 7, 2000
Grant date	Feb 4, 2003
Priority date	—
Expiry date	Mar 7, 2020

Classification

Technology area (CPC G)Physics
CPC primaryG01B11/272
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A device for precision measurement of shafts, spindles, or the like calls for two surfaces which are combined with one another, of which one is partially reflecting and the other is roughly fully reflecting. These surfaces reflect an incident light beam independently of one another onto a single optoelectronic target. The target can be read out two-dimensionally and is pixel-oriented. From only a single measurement position, the azimuth and elevation, and the parallel offset between the incident light beam and a center of the reflecting surfaces can be determined.

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