A method for measuring the diameter of a cylindrical member and a measuring aid device for carrying out such a method

摘要

A method for measuring the diameter of a cylindrical member and a measuring aid device for carrying out such a method Method for measuring a diameter of a cylindrical member 2 on a wall 4, by a measuring aid device 1 comprising two laser emitters emitting beams 220, 240 parallel, defining a plane 28, and a pickup device of fixed view with respect to transmitters having a field 300 oriented in the same direction as the beams and capable of capturing an image of said field, comprising the steps: - lifting of the measuring aid device to the level of the cylindrical member 2, - positioning of the measurement aid device 1 so that each beam 220, 240 is reflected by the wall 4 at a respective point in the field 300 and that the beams 220, 240 are perpendicular to the wall, - generation of image data comprising an image of the cylindrical member 2 and the reflection points of the beams 220, 240, and - determination of a diameter of the cylindrical member 2 as a function of the spacing. Figure for the abstract: Fig. 8