An observation device based on the trajectory of magnetic particles under variable magnetic field

Abstract

The invention discloses an observation device based on a motion trajectory of magnetic particles under a variable magnetic field, and belongs to the technical field of observation of particle motion.The observation device mainly consists of a square observation cavity, a cylindrical observation table, a surface dial, two electromagnet placement cavities, a magnetic field two-pole connection frame, magnetic particles, a flexible rubber mud at the bottom of the cavity, a reciprocating scraper, a scraper guide, a rotating shaft, a tapered roller bearing, and a support base, wherein the square observation cavity is located at the center of the cylindrical observation table, the outer surface of the cylindrical observation table is symmetrically distributed with two electromagnet placement cavities along the central axis, a layer of flexible rubber mud is evenly laid on the bottom plate of the observation cavity, and the reciprocating scraper is installed at one end of the bottom plate ofthe observation cavity, so that the magnetic particle trajectory observation experiment can be repeated. The device has the advantages of simple structure, low production cost and reusability, and canperform effective motion trajectory calibration observation experiments on magnetic particles under a variable magnetic field.

Description

Technical field: [0001] The invention relates to an observation device, in particular to an observation device for magnetic particles moving under a magnetic field. Background technique: [0002] The trajectory analysis of magnetic particles under a magnetic field is very important in the field of magnetic material research such as magnetorheology. The observation device for the trajectory of magnetic particles under a variable magnetic field has unique advantages in the study of magnetic particle mechanics. Among them, the trajectory of magnetic particles The visualization research is of great significance. The traditional optical observation device can only reflect the position at a certain moment in the observation of the movement form of magnetic particles, and cannot reflect the trajectory, speed, displacement, etc. In addition, the size and direction of the external magnetic field cannot be changed. Based on the technical defects of the traditional magnetic particle o...

AI Technical Summary

Problems solved by technology

The traditional optical observation device can only reflect the position at a certain moment in the observation of the movement form of magnetic particles, and cannot reflect the trajectory, speed, displacement, etc. In addition, the size and direction of the external magnetic field cannot be changed. Based on the technical defects of the traditional magnetic particle observation device, an observation device for the trajectory of magnetic particles under a variable magnetic field is developed.

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