FIELD: transport mechanical engineering.
SUBSTANCE: device comprises magnetic circuit, permanent magnet, and magnetically sensitive Hall element. The magnetic circuit is made of rod with thread. The member for dissipation of magnetic field is mounted on the rod for permitting movement. One end of the rod is diverging and provided with the radial projection having the magnetically sensitive Hall element. The other end of the rod is provided with the permanent magnet.
EFFECT: expanded functional capabilities and reduced cost of structure.
9 cl, 3 dwg
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