Patent ID: 8316554
Filing Date: 2012-11-27
Classification: G01B

Abstract:
1. A measuring gauge for determining a diameter or a cross-sectional area of an object whose cross section can be adjusted, with a first measuring disk, which has a helical slot that runs about the center of the measuring disk and which tapers down; a second measuring disk, which has a slot running constantly from the area of the center to the edge, which tapers down in the same direction as the slot of the first measuring disk; a material measure for reading out the measure determined, which is provided on one of the two measuring disks; with the measuring disks being placed one atop the other with a central axial connection and able to counter-rotate relative to each other, with the slots of the measuring disks configured to be applied by sections in overlap, so that they leave a through-running opening into which the object to be measured can be inserted, and through counterrotation of the measuring disks relative to each other, the width of the opening can be altered, and on the material measure the diameter and/or the cross-sectional area of the particular remaining opening can be read out.