Title:
磁気ベース・力/トルクセンサー
Document Type and Number:
Japanese Patent JP4743741
Kind Code:
B2
Abstract:
A force transducer element ( 20 ) comprises a body ( 22 ) of magnetisable material having at least one magnetised region ( 30 ) at an angle, say 45°, to the force-sensing direction (P-P). Preferably there are a plurality of parallel magnetised regions of alternating opposite polarity of magnetisation to form closed loops ( 43 p , 43 n). The element may be a block having opposite force receiving surfaces ( 24, 24 '). The body ( 122 ) may contain plural transducer elements ( 120 a, 120 b) angled to one another to resolve force directions. The principle is extended to a circular transducer element ( 243 ). The invention may be implemented in a flexible magnetic tape. Another embodiment ( 300 ) is realised in a planar structure in which a ferromagnetic core ( 310 ) is subject to a magnetic field ( 326 ) at an angle to the direction (F) of force application generated by laterally offset coils ( 312, 314 ). A sensor device ( 330 ) is fabricated in the structure.
Inventors:
Mei Rats Accelerator
Application Number:
JP2001571064A
Publication Date:
August 10, 2011
Filing Date:
March 28, 2001
Export Citation:
Assignee:
Abas, Incorporated
International Classes:
G01L1/12; G01L3/10; G01M5/00
Domestic Patent References:
| JP9511832A | ||||
| JP1123487A | ||||
| JP7119658B2 | ||||
| JP7209128A | ||||
| JP639830A | ||||
| JP5196517A |
Attorney, Agent or Firm:
Atsushi Aoki
Jun Tsuruta
Koichi Itsubo
Masami Enohara
Ryu Kobayashi
Jun Tsuruta
Koichi Itsubo
Masami Enohara
Ryu Kobayashi