Title:
EDDY CURRENT-TYPE NONCONTACT DISPLACEMENT MEASURING DEVICE
Document Type and Number:
Japanese Patent JP2016045046
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an eddy-current type noncontact displacement measuring device capable of suppressing electromagnetic interference between a plurality of sensor coils with a simpler circuit configuration than conventional one.SOLUTION: An eddy current-type noncontact displacement measuring device includes: an oscillator 11; a plurality of sensor coils 31 which are electrically connected to the oscillator 11 and through which an AC current corresponding to an oscillation frequency of the oscillator 11 flows; and a plurality of sensor amplifiers 21 independent from each other, each of which is electrically connected to the sensor coils 31 and each of which outputs an output signal corresponding to displacement of an adjacent measurement object.SELECTED DRAWING: Figure 1
Inventors:
OKADE MOTOHIRO
Application Number:
JP2014168703A
Publication Date:
April 04, 2016
Filing Date:
August 21, 2014
Export Citation:
Assignee:
AISIN SEIKI
International Classes:
G01D5/20
Domestic Patent References:
| JPS6488101A | 1989-04-03 | |||
| JP2003130605A | 2003-05-08 | |||
| JP2005164593A | 2005-06-23 | |||
| JPH046401A | 1992-01-10 | |||
| JPH0484701A | 1992-03-18 | |||
| JPH0438506U | 1992-03-31 |
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda
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