3点法による寸法・形状測定に関する研究(第1報)

工作機械上での大口径外径測定装置の開発

抄録

Three-point method with three gap-detectors has been known effective for measuring the accurate profile excluding the influence of motion errors of machine. As a first step for the research and development of the three-point method to measure the accurate profile on machine tools, the followings are discussed in this paper; (1) a technique to measure the diameter of a roll by the three-point method, (2) evaluating errors due to the arrangement and the random noise of the three gap-detectors, and (3) the measurement result on the diameter of a roll (φ620mm) whose repeatable accuracy was ±3 μm.