| 摘要 |
PROBLEM TO BE SOLVED: To provide a device and a method of measuring rotation balance of a high-speed rotating body capable of obtaining data of a rotational primary vibration (amplitude, phase) with high reproducibility from an output signal of an acceleration sensor and thereby precisely detecting the magnitude and the angle of imbalance of the high-speed rotating body. SOLUTION: The rotational frequency and rotational primary vibration data in a prescribed speed range are acquired (S1, S2), and the rotational primary vibration data are converted into the data of a real part and an imaginary part. The prescribed speed range is divided into a plurality of frequency domains, the data in the plurality of frequency domains including the frequency domain are approximated by a least square straight line for each frequency domain, and the value on the least square straight line is replaced with the data in the frequency domain (S4). COPYRIGHT: (C)2010,JPO&INPIT
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