Core for torque detection sensor and torque detection sensor
AssigneeShinano Kenshi Co., Ltd.
InventorAkihide FURUKAWA
Life of this patent
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Abstract
A core for a torque detection sensor includes a first laminated core in which first teeth are provided to protrude in a radial direction at plural places from an annular first core back formed by laminating a plurality of magnetic sheet materials, and a second laminated core in which second teeth are provided to protrude in the radial direction at plural places from an annular second core back formed by laminating a plurality of magnetic sheet materials, in which the first laminated core and the second laminated core are stacked so that the first teeth and the second teeth are in staggered arrangement in a circumferential direction.
Claims9
A core for a torque detection sensor that measures variation of magnetic permeability by variation of coil impedance in magnetic circuits formed between a core and an object to be detected by energizing coils wound around teeth provided to protrude from the annular core provided around the object to be detected at plural places, comprising:
- a first laminated core in which first teeth are provided to protrude in a radial direction at plural places from an annular first core back formed by laminating a plurality of magnetic sheet materials;
- and
- a second laminated core in which second teeth are provided to protrude in the radial direction at plural places from an annular second core back formed by laminating a plurality of magnetic sheet materials,
- wherein the first laminated core and the second laminated core are stacked so that the first teeth and the second teeth are in staggered arrangement in a circumferential direction.
Dependencies are inferred from the claim text.