Title:
ELECTROMAGNETICALLY MOVING DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/154784
Kind Code:
A1
Abstract:
In this electromagnetically moving device 100, magnetic flux variation measurement means 3 is disposed outside of a closed magnetic path created when a moving iron core 6 and a stationary iron core 5 are in a coupled state through the permanent magnet 7, and at a position allowing the variation in a leakage flux caused by the shifting of the moving iron core 6 to be measured. From the measurement of time-series data for the magnetic flux variation, the time at the inflexion point is calculated, thereby estimating the behavior of a moving part such as a switch.
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Inventors:
TAKASUKA TOMOKO (JP)
MORI MITSUGI (JP)
TSUKIMA MITSURU (JP)
MORI MITSUGI (JP)
TSUKIMA MITSURU (JP)
Application Number:
PCT/JP2017/008543
Publication Date:
September 14, 2017
Filing Date:
March 03, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H01F7/16; H01F7/06; H01F7/18; H01H33/00; H01H33/38; H01H33/666
Foreign References:
| JP2012113964A | 2012-06-14 | |||
| JPH01144583U | 1989-10-04 | |||
| JP2010101468A | 2010-05-06 | |||
| JP2011253860A | 2011-12-15 |
Other References:
See also references of EP 3428936A4
Attorney, Agent or Firm:
OIWA Masuo et al. (JP)
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