Is a
Patent attributes
Patent Applicant
0
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
April 12, 2005
0Patent Application Number
106780750
Date Filed
October 6, 2003
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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