| 摘要 |
A device for revealing ferromagnetic foreign bodies, in particular for protecting working elements of harvesters comprises a system of constant magnets of constant polarity throughout all the width of a flow of technological product, which consists of the constant magnets, magnetized at angle of 45 DEGREE -90 DEGREE to the plane of symmetry of the magnetic system, and flip coils, which embrace the poles of the magnets, attached to an electronic estimation unit. Symmetrical parts of the magnetic system are turned one to another by analogous poles, and the flip coils are placed on the outer surface of the constant magnets, turned to the space of movement of the technological product, and embrace one joint pole for all the magnets.
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