Dynamic characteristic measurement device of centrifugal rotation machine, and centrifugal rotation machine
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United States of America Patent
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Jun 9, 2020
Grant Date -
Sep 27, 2018
app pub date -
Mar 30, 2018
filing date -
Nov 19, 2012
priority date (Note) -
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Abstract
A dynamic characteristic measurement device of the present invention includes magnetic force generators (1a, 1b, 2a, 2b) arranged on the back surface side of impellers (4, 5), the magnetic force generators that oscillate the impellers (4, 5) with magnetic force, an oscillation controller (12) that drives these magnetic force generators, and vibration sensors (13, 14) that detect vibration of a rotation shaft (3). The dynamic characteristic measurement device further includes an arithmetic device (16) that calculates a dynamic characteristic of a rotor (6) by implementing a frequency analysis and a mode analysis based on an oscillation signal from the oscillation controller (12) and a vibration signal from the vibration sensors (13, 14).
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