| 摘要 |
PROBLEM TO BE SOLVED: To detect vibration highly accurately, while widening a detectable range of a vibration sensor. SOLUTION: This unbalance measuring device 10 of a rotor 11 includes an angle sensor 7 for detecting a rotation angle of the rotor from a prescribed reference angle, two or more vibration sensors 5 for detecting vibration of a support 3 for supporting the rotor 11 rotatably, and a data generation part 9 for generating unbalance data of the rotor 11 based on a detected rotation angle from the angle sensor 7 and on detected vibration from the vibration sensors. The two or more vibration sensors 5 include at least a high-sensitivity vibration sensor 5H and a low-sensitivity vibration sensor 5L. The high-sensitivity vibration sensor 5H has a narrower range of the magnitude of detectable vibration, and higher resolution in comparison with the low-sensitivity vibration sensor 5L. COPYRIGHT: (C)2011,JPO&INPIT
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