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A three-dimensional magnetic characteristic measurement device suitable for electrical materials under stress loading

A technology of stress loading and measuring device, applied in the direction of measuring device, magnetic performance measurement, measuring device casing, etc., can solve the problems of inability to study three-dimensional magnetic characteristic measurement, structure fixing, etc., to increase efficiency, reduce magnetic flux leakage, and improve uniformity Effect

Active Publication Date: 2022-02-18
HEBEI UNIV OF TECH
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Problems solved by technology

) designed a device that can measure the two-dimensional magnetic properties of a cube sample under the condition of two-dimensional excitation and uniaxial force. The device consists of two C-shaped yokes and four faces Connected for excitation, the cube sample is stressed in the vertical direction through the force-exerting actuator, and the overall device structure is fixed, so it can only measure the two-dimensional magnetic characteristics under the condition of two-dimensional excitation and single-axis force, and it is impossible to study the stress loading Three-dimensional magnetic property measurement under conditions

Method used

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  • A three-dimensional magnetic characteristic measurement device suitable for electrical materials under stress loading
  • A three-dimensional magnetic characteristic measurement device suitable for electrical materials under stress loading
  • A three-dimensional magnetic characteristic measurement device suitable for electrical materials under stress loading

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Embodiment Construction

[0057] Specific examples of the present invention are given below. The specific embodiments are only used to further describe the present invention in detail, and do not limit the protection scope of the claims of the present application.

[0058] The invention provides a three-dimensional magnetic characteristic measuring device suitable for electrical materials under stress loading conditions, including a measuring platform, a control module, and an electromagnetic module for a sample to be tested;

[0059] The composition of described control module is as figure 1 As shown, including signal amplifier 28, NI acquisition card 29, power amplifier 30, water cooling resistance 31, matching capacitor box 32 and computer 33, wherein, signal amplifier 28, NI acquisition card 29, power amplifier 30, water cooling resistance 31, matching capacitor The box 32 is connected in sequence, the computer 33 is connected with the NI acquisition card 29; the matching capacitor box 32 is conn...

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Abstract

The invention is a three-dimensional magnetic characteristic measuring device suitable for electrical materials under stress loading conditions. The device includes a measuring platform, a control module and an electromagnetic module for the sample to be tested; the composition of the control module includes a signal amplifier, a NI acquisition card, a power amplifier, a water cooling resistor, a matching capacitor box and a computer, wherein the signal amplifier, the NI acquisition card , power amplifier, water-cooling resistor, and matching capacitor box are connected in sequence, and the computer is connected to the NI acquisition card; the matching capacitor box is connected to the excitation coil of the measuring device; the B-H composite sensing coil inside the sample is connected to the signal amplifier. The invention is suitable for the sensing structure of the cubic sample in the magnetic property measurement experiment under the condition of stress loading.

Description

technical field [0001] The invention relates to the field of three-dimensional magnetic property measurement, in particular to a three-dimensional magnetic property measurement device suitable for electrical materials under stress loading conditions. Background technique [0002] Magnetic materials are widely used in electrical equipment. The measurement of magnetic properties is the prerequisite for us to understand and apply magnetic materials. At present, the commonly used methods for measuring magnetic properties are one-dimensional Epstein square method, ring sample method and two-dimensional monolithic test method. [0003] However, in the actual engineering of equipment manufacturing and operation, electrical materials will be subjected to various forces, such as the residual internal stress caused by material cutting, stamping, assembly, coil winding and cutting, etc., during the rotation of the motor The centrifugal force and the electromagnetic force that the tran...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R33/12G01R33/00G01R1/04
CPCG01R33/12G01R33/0005G01R33/0011G01R1/04
Inventor 李永建张文婷万振宇付裕杨明
Owner HEBEI UNIV OF TECH
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