Title:
磁歪式トルクセンサ
Document Type and Number:
Japanese Patent JP6675570
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To shorten an axial length of a magnetostrictive torque sensor so as to enhance its resistance to temperature changes, magnetization of a rotation shaft, and magnetic noise.SOLUTION: A magnetostrictive torque sensor 10 includes a rotation shaft 2. A first alloy film 31 and a second alloy film 32 are plated and provided on a radial outer peripheral surface of the rotation shaft 2. A first stator core 45 includes two systems of coils: first detection coils 451 and second detection coils 452. The first detection coils 451 and the second detection coils 452 are connected to a signal detector (not shown). A second stator core 46 includes two systems of coils: third detection coils 461 and fourth detection coils 462. The third detection coils 461 and the fourth detection coils 462 are connected to the signal detector (not shown).SELECTED DRAWING: Figure 1
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Inventors:
Masahiro Sakai
Hiroshi Kushiwara
Kazuyuki Ishibashi
Hiroshi Kushiwara
Kazuyuki Ishibashi
Application Number:
JP2016205191A
Publication Date:
April 01, 2020
Filing Date:
October 19, 2016
Export Citation:
Assignee:
Tamagawa Seiki Co., Ltd.
International Classes:
G01L3/10; G01L25/00
Domestic Patent References:
| JP3964414B2 |
Attorney, Agent or Firm:
Michiharu Soga
Kajinami order
Masahiro Taguchi
Ichiro Oi
Kazuhiro Mitsunaga
Kanayama Asuka
Kajinami order
Masahiro Taguchi
Ichiro Oi
Kazuhiro Mitsunaga
Kanayama Asuka