Method and system for determining the properties of a...

Details Method and system for determining the properties of a... Method and system for determining the properties of a...

2005-10-27

2009-10-27

Punnoose, Roy (Department: 2886)

Optics: measuring and testing

Inspection of flaws or impurities

Bore inspection

C356S601000

Reexamination Certificate

active

07609374

ABSTRACT:
The invention relates to a method and system for determining the direction and location of the symmetry axis of a revolution-shaped article. Furthermore, the invention enables one to determine the radius of the article as well as the pitch of a possible thread. In the arrangement of the invention, the article being measured is illuminated using light sources arranged in direct vicinity of the cameras. Each camera is measuring the reflection plane formed from the article being measured based on the light reflected backward from the article. The symmetry axis is determined by calculating the transversal of the reflection planes. The system of the invention uses at least two cameras, but the measurement accuracy can be improved by calculating the symmetry axis from the transversals of the reflection planes of a bigger set of cameras. Furthermore, at least a third camera is required to calculate the pitch of thread.

REFERENCES:
patent: 4315688 (1982-02-01), Pryor
patent: 5771309 (1998-06-01), Yamaoka et al.
patent: 5956417 (1999-09-01), Pryor
patent: 6028672 (2000-02-01), Geng
patent: 6154279 (2000-11-01), Thayer
patent: 6590669 (2003-07-01), Wagner
patent: 6909513 (2005-06-01), Fujita et al.
patent: 2002/0029127 (2002-03-01), Wakashiro
patent: 2005/0068544 (2005-03-01), Doemens et al.
patent: 2 309 008 (2000-11-01), None
patent: 2003-248813 (2003-09-01), None
patent: 2004-352308 (2004-11-01), None

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