INDUSTRIAL MACHINE, ECCENTRICITY SPECIFYING DEVICE, ECCENTRICITY SPECIFYING METHOD, AND PROGRAM

A rotation command unit outputs a rotation command to a rotary motor. A rotation angle acquisition unit acquires the measured value of a rotation angle of a grindstone from a rotation angle sensor. A vibration acquisition unit acquires a value related to vibration in the cutting direction of the grindstone on the basis of the value of displacement measured by a displacement sensor. An eccentricity specifying unit specifies a value related to the difference between the center of gravity of the grindstone and the central axis on the basis of the measured value of the rotation angle and the value related to vibration. 旋转指令部将旋转指令输出到旋转马达。旋转角取得部从旋转角传感器取得砂轮的旋转角的测量值。振动取得部基于由位移传感器获得的位移的测量值，取得与砂轮向切削方向的振动相关的值。偏心特定部基于旋转角的测量值和与振动相关的值，特定与砂轮的重心和中心轴之差相关的值。