MEASUREMENT GAUGE FOR OPTICAL INSTRUMENTATIONS AND ITS MOUNTING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a measurement gauge capable of sticking a reflector of the measurement gauge on a rotational shaft as an object to be measured easily and precisely, and to provide a method of mounting it. SOLUTION: The measurement gauge 50 is stuck on the outer periphery of the turbine rotor 4 provided with a reflector P having a bar code area while reflecting light rays irradiating a turbine rotor 4 to light receiving part of the optical instrument. The measurement gauge 50 is provided with a long strip-shaped member 51 having a straight edge 51a extending toward longitudinal direction, and the reflector P wherein a bar code area is provided. Each bar code in the bar code area is provided perpendicular to and referring to the edge 51a of the strip-shaped member 51. COPYRIGHT: (C)2004,JPO&NCIPI