Three-dimensional space vector magnetic measurement device and method

Abstract

The invention relates to a three-dimensional space vector magnetic measurement device and method.The three-dimensional space vector magnetic measurement device comprises a main support, three iron core assemblies and a sample loading assembly, and each iron core assembly comprises two oppositely-arranged half iron cores, windings arranged on the half iron cores, iron core fixing pieces fixedly connected with the two half iron cores respectively and a driving part connected with the iron core fixing pieces; the driving part can adjust the distance between the two half iron cores, the sample loading assembly comprises a sample support, a sample body and a shielding block, the shielding block is arranged between the iron core pole heads of the half iron cores and the sample body, and a piezoelectric sensing piece or a piezoelectric stress ceramic piece is tightly connected between the shielding block and the sample body in an abutting mode. The problems that in an existing test method, the test reliability is poor, the sample magnetization efficiency is low and the actual working condition magnetization environment cannot be simulated due to the fact that the magnetization environment affects the magnetic-electricity relation are solved, and the problems that the material utilization rate is low and energy consumption is high due to the fact that a magnetic material model is inaccurate are solved.

Description

technical field [0001] The invention relates to the technical field of magnetic material testing, in particular to a three-dimensional space vector magnetic measuring device and method. Background technique [0002] The magnetic properties of magnetic materials are divided into static magnetic properties and dynamic magnetic properties. The static magnetic properties are related to the composition and structure of the material. Commonly used measurement methods include the impact method and the fluxmeter method. The dynamic magnetic properties are related to the magnetization environment of the material (such as excitation waveform, temperature, stress, frequency, etc.), the shape of the sample, and the processing technology. The commonly used measurement methods include the Epstein square method and the ring sample method. [0003] According to the boundary conditions of the magnetic field, when the distance between the sensing coil and the sample surface is infinitely clo...

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Problems solved by technology

However, the induction coil is susceptible to extrusion deformation and poor stability in high-frequency environments

In addition, the distance between the induction H coil and the surface of the sample is limited by the existing technology, which is difficult to close to 0 and the consistency of each coil is poor. Limited by the sample test space, it is difficult to improve the sensitivity of the H sensor. The three-dimensional magnetic characteristic test device is single-axis (X-axis or Y-axis or Z-axis) Pole head position regulation stability and excitation efficiency are limited Sample magnetization environment

In addition, for the magnetization environment of actual working conditions, the existing technology cannot simulate the three-dimensional dynamic magnetic properties of the sample under stress

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