FLATNESS MEASURING METHOD AND MEASURING DEVICE

摘要

PROBLEM TO BE SOLVED: To reduce work in measurement of flatness and improve measurement accuracy. SOLUTION: A guide rail 3 is fixed on a metal surface 1 of a measuring object by a support member 2 consisting of magnet supporting both ends of the guide rail 3. Flatness of metal surface 1 is measured with a laser type displacement meter 5 provided movably along the guide rail 3. With this method, flatness measurement becomes possible with ease and high accuracy even in the case the measuring object surface is facing downward.