Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Jon P. Fuge0
Colin T. Bell0
Norman J. Leete0
Victor G. Stimpson0
William K. Davies0
Date of Patent
May 30, 2006
0Patent Application Number
109473450
Date Filed
September 23, 2004
0Patent Citations Received
Patent Primary Examiner
Patent abstract
The present invention teaches a method and apparatus for making measurement of an object on a machine, such as a machine tool, using an optical measuring apparatus which includes a light source for generating a beam of light which is incident on a detector. A detection signal is generated within the detector each time the beam is interrupted. The duration and/or frequency of the detection signals are evaluated and an output signal is emitted from the detection only if a further detection signal is present within the detector in a specified time interval from the generation of an earlier detection signal.
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