SYSTEM AND METHOD FOR MEASURING LENGTH OF GAP BETWEEN ROTATING TOOL AND WORKPIECE
|Posted date||Sep 20, 2012|
|International application number||2011JP064410|
|International publication number||WO 2012/014609|
|Date of international filing||Jun 23, 2011|
|Date of international publication||Feb 2, 2012|
|Title||SYSTEM AND METHOD FOR MEASURING LENGTH OF GAP BETWEEN ROTATING TOOL AND WORKPIECE|
The present invention is to generate a pulsed laser beam having a width greater than the gap between a rotating tool and a workpiece opposed thereto, and then irradiate the gap with the generated laser beam while the optical axis thereof is tilted relative to a workpiece plane. The pulsed laser beam has one lased-pulse period per one revolution or an integer number of revolutions of the rotating tool and is directed in the same angle range relative to the rotating tool within the ON duration of the lased pulse. The light which has irradiated the gap and has not been interrupted but diffracted by the gap is detected on a light-receiving sensor to measure the length of the gap.
|IPC(International Patent Classification)||
Contact Information for " SYSTEM AND METHOD FOR MEASURING LENGTH OF GAP BETWEEN ROTATING TOOL AND WORKPIECE "
- Kyushu Institute of Technology Organization for Promotion of Research and innovation
- URL: http://www.ccr.kyutech.ac.jp/
- Address: 1-1 Sensui-cho, Tobata-ku, Kitakyushu-shi, Fukuoka, JAPAN , 804-8550
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