CLEARANCE MEASURING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a clearance measuring device capable of accurately measuring a clearance in thickness direction with a device with simple constitution when measuring the clearance of a thick measuring target. SOLUTION: The device is a clearance measuring device for obtaining the clearance between adjacent surfaces in a thick test target and has the following constitution: A base 400 wherein the test target is arranged and having notches near the clearance between adjacent surfaces. A photographing means (camera 100) arranged to have an inclined optical axis in the thickness direction of the test target on one side of the test target and acquiring the image of the test target. A light source 200 arranged on the other side of the test target and irradiating the test target through the notches in the base 400. An image processing means 800 for obtaining the clearance from the image of the test target obtained with the photographing means. COPYRIGHT: (C)2006,JPO&NCIPI