Patent ID: 9212881
Filing Date: 2015-12-15
Classification: G01B

Abstract:
1. A hole examining device, comprising: a moving body supported to be movable in two directions which cross each other; a measurement head supported to be movable in a direction crossing a movement direction of the moving body with respect to the moving body; a measurement head moving device capable of moving the measurement head with respect to the moving body; a plurality of measurers supported to be movable in the same direction as a movement direction of the measurement head with respect to the measurement head; and a measurer holding mechanism capable of holding the measurer at an advance position which advances as well as retreats, wherein the plurality of measurers includes a first measurer having a first size insertable in the hole formed in the examined member when the hole is larger than a minimum tolerance and a second measurer having a second size which is not insertable in the hole formed in the examined member when the hole is smaller than a maximum tolerance.