FIELD: measurement equipment.
SUBSTANCE: invention relates to measurement equipment. The device comprises a beam made of amorphous ferromagnetic material. Also the beam comprises at least four flattened brackets covering the surface area equal or more than a quarter of the disc limited with a body ring. The diameter of the beam is twice or more higher than the diameter of the spring.
EFFECT: development of a device for protection of a balance spring of a clock from exposing magnetic fields.
5 cl, 4 dwg
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Authors
Dates
2015-04-10—Published
2011-12-05—Filed