A measurement system and method for space high-frequency rotating magnetic properties

Abstract

The invention discloses a spatial high-frequency rotation magnetic characteristic measuring system and a measuring method. The system comprises a three-axis orthogonal shimming excitation structure, an excitation signal generating device, a power amplifier, a differential amplification circuit for a precision instrument, and a data acquisition and processing unit; the excitation signal generatingdevice is connected with the power amplifier; the differential amplification circuit for a precision instrument is connected with the data acquisition and processing unit; the three-axis orthogonal shimming excitation structure is connected with the power amplifier and the differential amplification circuit for a precision instrument; the three-axis orthogonal shimming excitation structure includes an x-axis iron core group, a y-axis iron core group, a z-axis iron core group, and an excitation winding; the x-axis iron core group, the y-axis iron core group and the z-axis iron core group each are composed of two identical C-shaped iron cores; two pole heads of one C-shaped iron core are respectively connected with two pole heads of the other C-shaped iron core, so that a double-C-shaped iron core structure can be formed; and the three iron core groups are arranged in a three-dimensional 90-degree staggered manner; and the winding positions of the excitation winding on the double-C-shaped iron core structures are identical.

Description

technical field

[0001] The invention relates to the field of magnetic characteristic measurement, in particular to a space high-frequency rotating magnetic characteristic measurement system and a measurement method. Background technique

[0002] The magnetic characteristic detection system is mainly composed of an excitation device, a magnetic characteristic sensing device and a data acquisition system. The excitation device is a key part of magnetizing the material to be tested according to the required technology, and is used to realize the dynamic magnetic characteristic simulation of the magnetic material under actual working conditions. According to the development of magnetic characteristic detection technology, the excitation device mainly has two types of structures: one-dimensional alternating excitation structure and two-dimensional planar rotation excitation structure. These two excitation structures can only realize unidirectional magnetization or planar rotation...

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