Title:
DISPLACEMENT DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/121884
Kind Code:
A1
Abstract:
[Problem] To provide a displacement detection device which is for detecting displacement of an object to be measured contained inside a housing, and which does not change the design of the housing or limits a change in the design of the housing. [Solution] The displacement detection device 2 has: a pair of magnets 14a and 14b arranged outside of an injector body 10 with gaps therebetween to form a magnetic field in the gap, the injector body 10 containing a needle 11 therein; a soft magnetic body 12 connected to the needle 11 inside the injector body 10, displaced in response to displacement of the needle 11, and disposed inside the magnetic field formed by the pair of magnets 14a and 14b; and a sensor 13 disposed outside of the injector body 10 and inside the magnetic field formed by the pair of magnets 14a and 14b, and detecting changes in the magnetic flux density according to the displacement of the soft magnetic body 12.
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Inventors:
YOSHIYA TAKUMI (JP)
Application Number:
PCT/JP2016/052527
Publication Date:
August 04, 2016
Filing Date:
January 28, 2016
Export Citation:
Assignee:
MELEXIS TECHNOLOGIES NV (BE)
MELEXIS JAPAN TECHNICAL RES CT KK (JP)
MELEXIS JAPAN TECHNICAL RES CT KK (JP)
International Classes:
G01B7/00; F02M65/00
Domestic Patent References:
| WO2008105228A1 | 2008-09-04 |
Foreign References:
| JPS59168381A | 1984-09-22 | |||
| JP2014095615A | 2014-05-22 | |||
| JP2011231696A | 2011-11-17 |
Other References:
See also references of EP 3252426A4
Attorney, Agent or Firm:
HIRATA, Tadao (JP)
Tadao Hirata (JP)
Tadao Hirata (JP)
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