Portable permanent magnet magnetic detection device with adjustable magnetic field

Abstract

The invention discloses a portable permanent magnet magnetism detection device with an adjustable magnetic field, and belongs to the field of magnetic detection. The device comprises a first magnetic pole head, a second magnetic pole head, a fixing block, a permanent magnet and an adjusting screw rod, wherein the first magnetic pole head and the second magnetic pole head are oppositely arranged on the fixing block, the first magnetic pole head is movably connected with the fixing block and can slide along the fixing block, and the second magnetic pole head is fixedly connected with the fixing block; the permanent magnet is arranged in the fixing block between the first magnetic pole head and the second magnetic pole head; the first magnetic pole head is connected with the second magnetic pole head through the adjusting screw rod which can adjust the distance between the first magnetic pole head and the second magnetic pole head. The device can conveniently adjust the intensity of the magnetic field between the two magnetic pole heads, and has the advantages of being small and exquisite in size, light in weight, convenient to carry, suitable for being used in a laboratory and used outdoors, capable of detecting whether materials have magnetism or not and the strength of the magnetism, and the like.

Description

technical field [0001] The invention relates to the field of magnetic detection, in particular to a convenient and portable device for detecting permanent magnetism. Background technique [0002] In the research fields of basic subjects such as geology and minerals, it is often necessary to distinguish whether a certain mineral is magnetic and magnetic, or to separate materials with different magnetic properties. One of the important methods is to use an external magnetic field to perform magnetic detection. and separation. At present, there are two methods of generating magnetic field: permanent magnet and electromagnetic. The electromagnetic field can adjust the magnetic field strength by controlling the current to meet the controllable requirements of the magnetic field. However, the electric excitation device is large in size and is not convenient for outdoor use, especially in field mines. ; The permanent magnet has the characteristics of a permanent magnetic field, bu...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a portable permanent magnetic detection device with an adjustable magnetic field, which can adjust the magnetic field strength and is small in size, light in weight and easy to carry, and solves the problem that there is currently no one suitable for rapid detection of minerals during on-site inspections. Problems with magnetic detection devices for magnetic determination

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