Title:
MAGNETIC BEARING DEVICE AND FLUID MECHANICAL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/033947
Kind Code:
A1
Abstract:
In the present invention, in a first mode, a control unit (40) performs: a first operation for controlling a combined electromagnetic force (F) of electromagnets (51, 52) so that a supported body moves within a predetermined movement range; and a second operation for acquiring temperature drift correlation information indicating a correlation between a reference value (R) and input/output characteristics of a position sensor (30) on the basis of the reference value (R) and the input/output characteristics of the position sensor (30) in the first operation. In a second mode, the control unit (40) performs: a third operation for controlling the combined electromagnetic force (F) of the electromagnets (51, 52) according to the signal level of a detection signal of the position sensor (30); and a fourth operation for compensating the input/output characteristics of the position sensor (30) in the third operation on the basis of the temperature drift correlation information and the reference value (R) in the third operation.
Inventors:
HIRATA KAZUYA
SAKAWAKI ATSUSHI
SAKAWAKI ATSUSHI
Application Number:
PCT/JP2016/003780
Publication Date:
February 22, 2018
Filing Date:
August 18, 2016
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F16C32/04
Foreign References:
| JP2005249068A | 2005-09-15 | |||
| JPH09126236A | 1997-05-13 | |||
| JPH04308U | 1992-01-06 |
Other References:
See also references of EP 3486512A4
Attorney, Agent or Firm:
MAEDA & PARTNERS (JP)
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