Method and system for measuring runout of a rotating tool

Details Method and system for measuring runout of a rotating tool Method and system for measuring runout of a rotating tool

2006-04-11

2006-04-11

Porta, David (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

With circuit for evaluating a web, strand, strip, or sheet

C356S602000, C702S157000, C702S172000

Reexamination Certificate

active

07026637

ABSTRACT:
A method, system, and computer program product for measuring runout of a rotating tool are provided. A rotating tool is illuminated with a coherent electromagnetic radiation. The tool has an axis and a reflective surface, and completes a rotation in one period. The surface has a radial displacement from the axis of the rotating tool. A path, of coherent electromagnetic radiation reflected from the reflective surface is sensed. A maximum radial displacement is determined based upon the sensed path and a minimum radial displacement is determined based upon the sensed path. A runout is determined based upon the difference between the maximum radial displacement and the minimum radial displacement. A tool edge margin can be measured by analysis of specific areas of the rotating tool.

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