Title:
SYSTEM AND METHOD FOR MEASURING LENGTH OF GAP BETWEEN ROTATING TOOL AND WORKPIECE
Document Type and Number:
WIPO Patent Application WO/2012/014609
Kind Code:
A1
Abstract:
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.
More Like This:
| JP52002546 | OPTICAL DEVICE TO MEASURE DISPLACEMENT OF PLANE |
| WO/2002/031435 | CLOSURE MEASURING SYSTEM |
| JP59075108 | METHOD AND DEVICE FOR OPTICAL MEASUREMENT OF FINE CAP |
Inventors:
KHAJORNRUNGRUANG, Panart (1-1 Sensui-cho, Tobata-ku, Kitakyushu-sh, Fukuoka 50, 〒8048550, JP)
カチョーンルンルアン パナート (〒50 福岡県北九州市戸畑区仙水町１番１号 国立大学法人九州工業大学内 Fukuoka, 〒8048550, JP)
カチョーンルンルアン パナート (〒50 福岡県北九州市戸畑区仙水町１番１号 国立大学法人九州工業大学内 Fukuoka, 〒8048550, JP)
Application Number:
JP2011/064410
Publication Date:
February 02, 2012
Filing Date:
June 23, 2011
Export Citation:
Assignee:
KYUSHU INSTITUTE OF TECHNOLOGY (1-1 Sensui-cho, Tobata-ku Kitakyushu-sh, Fukuoka 50, 〒8048550, JP)
国立大学法人九州工業大学 (〒50 福岡県北九州市戸畑区仙水町１番１号 Fukuoka, 〒8048550, JP)
KHAJORNRUNGRUANG, Panart (1-1 Sensui-cho, Tobata-ku, Kitakyushu-sh, Fukuoka 50, 〒8048550, JP)
国立大学法人九州工業大学 (〒50 福岡県北九州市戸畑区仙水町１番１号 Fukuoka, 〒8048550, JP)
KHAJORNRUNGRUANG, Panart (1-1 Sensui-cho, Tobata-ku, Kitakyushu-sh, Fukuoka 50, 〒8048550, JP)
International Classes:
G01B11/14; B23Q17/24
Attorney, Agent or Firm:
OHKAWA, Yuzuru (Kaimei Patent Office, 305 50-14, Sendagi 3-chome, Bunkyo-k, Tokyo 22, 〒1130022, JP)
Download PDF:
Claims: