scale error calculating device, scale error correcting device, and a memory error calculation method

摘要

PROBLEM TO BE SOLVED: To provide a graduation error calculating device capable of highly accurately calculating a graduation error while minimizing the number of detectors.;SOLUTION: A graduation error calculating device 4 is used for a graduation error calibration device 1 including a dial 2 supported by a rotating shaft 22, and four detectors 3 disposed on the dial 2. The graduation error calculating device 4 includes: a detection value combining means 41 that calculates a linear sum by multiplying each of the detection values detected by the four detectors 3 by a predetermined coefficient; and Fourier component identification means 42 that identifies a Fourier component of the graduation error on the basis of the Fourier component of the linear sum calculated by the detection value combining means 41.;COPYRIGHT: (C)2013,JPO&INPIT