Torque sensor and method for manufacturing the same

Details Torque sensor and method for manufacturing the same Torque sensor and method for manufacturing the same

G - Physics

01

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26/111, 73/2, 73

G01L 3/10 (2006.01) H01F 1/153 (2006.01) H01F 10/10 (2006.01) H01F 10/13 (2006.01)

Patent

CA 1214660

Abstract: Torque sensor and method for manufacturing the same There are disclosed a torque sensor having a rotary shaft and a thin strip of an amorphous magnetic alloy which has a great magnetic strain constant windingly fixed on the rotary shaft and detecting a torque in a non-contact style by a variation in magnetic properties of the thin strip of the amorphous alloy, characterized in that the amorphous alloy is an iron-based amorphous alloy having a crystallization temperature of 450 °C or more, and a method for manufacturing the same, characterized in that an inductive magnetic anisotropy had been previously given to the thin strip and then the thin strip is windingly fixed on the rotary shaft. The torque sensor according to the present invention permits measuring a large torque with a good accuracy in an extensive temperature, and is manufactured with ease.

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