Title:
DEVICE AND METHOD FOR MEASURING GAP BETWEEN FLANGES, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2019/189293
Kind Code:
A1
Abstract:
This device measures a gap between flanges fastened to each other with a gasket therebetween by a plurality of bolts and nuts, the device for measuring a gap between flanges comprising: a light emission unit (20) which, by means of minute light emission, generates a minute optical image on the flanges with a flange gap therebetween; an image capturing unit (16) that acquires an image including the minute optical image; and a measurement unit (24) that extracts minute optical image data and flange edge data from the image and measures the gap between the flanges or a gap difference. Accordingly, the present invention can facilitate positioning for measurement with respect to a circumferential surface of the flange and the measuring of a gap between the flanges, and improve measurement accuracy.
Inventors:
MOTOORI MANABU (JP)
Application Number:
PCT/JP2019/013075
Publication Date:
October 03, 2019
Filing Date:
March 27, 2019
Export Citation:
Assignee:
VALQUA LTD (JP)
International Classes:
G01B11/14
Foreign References:
| JP2003315020A | 2003-11-06 | |||
| JP2015045571A | 2015-03-12 | |||
| JP2015059755A | 2015-03-30 | |||
| JPS5487793U | 1979-06-21 |
Attorney, Agent or Firm:
UNEMOTO Shoichi et al. (JP)
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