Invention Grant
- Patent Title: Optoelectronic method and appliance for measuring the inside diameter of a hollow body
- Patent Title (中): 用于测量中空体内径的光电法和器具
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Application No.: US14236917Application Date: 2012-08-08
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Publication No.: US09243893B2Publication Date: 2016-01-26
- Inventor: Marc Leconte
- Applicant: Marc Leconte
- Applicant Address: FR Vourles
- Assignee: MSC & SGCC
- Current Assignee: MSC & SGCC
- Current Assignee Address: FR Vourles
- Agency: Clark & Body
- Priority: FR1157244 20110808
- International Application: PCT/FR2012/051865 WO 20120808
- International Announcement: WO2013/021137 WO 20130214
- Main IPC: G01B11/02
- IPC: G01B11/02 ; G01B11/12 ; G01J1/08 ; G01J1/42 ; G06T7/60
Abstract:
The invention relates to a method of measuring the inside diameter of a hollow body. According to the invention: the hollow body is illuminated from one side by a diffuse light source presenting two light boundaries that are spaced apart along the measurement axis so as to create two light transitions in an image, which transitions are spaced apart from each other and diametrically opposite; from the side of the hollow body that is opposite from its illuminated side, the light rays that are reflected and refracted by the hollow body are recovered to form at least one image in which there appear at least the two light transitions; and the image is processed in order to determine the distance between the two light transitions in order to determine a measurement for the inside diameter of the hollow body.
Public/Granted literature
- US20140347678A1 OPTOELECTRONIC METHOD AND APPLIANCE FOR MEASURING THE INSIDE DIAMETER OF A HOLLOW BODY Public/Granted day:2014-11-27
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