Torque detection sensor
A technology of torque detection and sensors, which is applied in the direction of torque measurement, instruments, measuring devices, etc., and can solve the problems of large sensors and increased processing costs
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[0041] Hereinafter, an embodiment of the torque detection sensor of the present invention will be described with reference to the drawings. First, refer to Figure 1 ~ Figure 1 3. The general configuration of the torque detection sensor 1 will be described.
[0042] As an example of the object to be detected, it is desirable to use a material having a large inverse magnetostrictive effect. For example, as a material with a large inverse magnetostrictive effect, there are Permende alloy (Japanese: パーメンジュール), Fe-Al (aluminum-iron alloy), Fe-Nix (Permalloy), and spherical graphite cast iron (JIS: FCD70) Wait. In addition, the inverse magnetostrictive effect is a phenomenon in which magnetic properties change when stress is applied to the magnet from the outside. In addition, if the object to be detected is subjected to magnetic annealing in advance as necessary, the torque acting on the object to be detected can be appropriately detected as will be described in detail later. ...
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