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Small multifunctional three-dimensional magnetoelectric test system

A test system, magnetoelectric technology, applied in the direction of magnetic performance measurement, dielectric performance measurement, electrical measurement, etc., can solve the problems of complex design of three-dimensional magnetic field platform, high cost, complex system test platform, etc.

Active Publication Date: 2020-02-07
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The design of the three-dimensional magnetic field platform is complex and expensive, and the system test platform will be relatively complicated
At present, there is no low-cost, small-scale, three-dimensional magnetoelectric test platform with multiple test functions

Method used

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  • Small multifunctional three-dimensional magnetoelectric test system
  • Small multifunctional three-dimensional magnetoelectric test system
  • Small multifunctional three-dimensional magnetoelectric test system

Examples

Experimental program
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Effect test

Embodiment 1

[0038] Participate in Figure 1-6 , a low-cost, small and multifunctional three-dimensional magnetoelectric testing system of the present invention uses a rotatable Holmhertz coil as a magnetic field source for supplying a magnetic field to realize magnetic field rotation in the X-Y plane. At the same time, the aluminum alloy sample stage unit 3 is located in the X-Z plane, and the magnetoelectric sample 10 can be placed arbitrarily in the X-Y-Z plane in the aluminum alloy sample stage unit 3, so that the three-dimensional magnetic field of the film-like magnetoelectric sample 10 with variable magnetic field angle and intensity can be realized. Electrical performance test, the specific structure is set as follows:

[0039] The three-dimensional magnetoelectric testing system includes a Holm Hertz electromagnetic coil 1 , an aluminum alloy sample stage unit 3 , a sample stage support 38 and a sleeve 35 .

[0040] Wherein, the Holmhertz electromagnetic coil 1 rotates around its...

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Abstract

The invention relates to a small multifunctional three-dimensional magnetoelectric test system. The system comprises two Helmholtz electromagnetic coils, an aluminum alloy sample table unit, a sampletable support and a sleeve, wherein each Helmholtz electromagnetic coil rotates around a self-axis; the aluminum alloy sample table unit is arranged between the two Helmholtz electromagnetic coils andcomprises a sample table joint, a connecting wire and a sample table which are arranged sequentially from top to bottom, wherein the sample table joint is connected with an external charge and / or voltage detection unit through a magnetoelectric signal lead, the connecting wire is connected with a PCB which is hollowed out in the middle, a thin-film magnetoelectric sample is placed at the hollowed-out position of the PCB, the PCB is provided with multiple electrodes, the electrodes are connected with the connecting wire, the sample table is provided with an insulated substrate, the hollowed-out position of the PCB is right opposite to at least one part of the substrate, and the substrate is used for isolating contact between the magnetoelectric sample and the sample table; the sample tablesupport is detachably arranged between the two Helmholtz electromagnetic coils, and the sample table is detachably connected with the sample table support; and the sleeve is used for providing an electrostatic shielding function and is arranged outside the sample table joint in a sleeving mode.

Description

technical field [0001] The invention relates to a magnetoelectric performance testing device, in particular to a small multi-functional three-dimensional magnetoelectric testing system. Background technique [0002] Magnetoelectric performance testing includes testing resistivity, magnetoresistance coefficient, Hall coefficient, dielectric constant, ferroelectric effect and other properties. Except for resistivity among the above physical properties, accurate testing of other properties requires relatively high hardware requirements for the test platform. In particular, the magnetoresistivity and Hall coefficient require an externally applied magnetic field. The design of the three-dimensional magnetic field platform is complex and expensive, and the system test platform will be relatively complicated. At present, there is no low-cost, small-scale, three-dimensional magnetoelectric test platform with multiple test functions. Contents of the invention [0003] In order t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/12G01R31/00G01R27/26
CPCG01R33/12G01R33/1253G01R31/00G01R27/2623G01R27/2635G01R27/267
Inventor 汤如俊冯亦恒
Owner SUZHOU UNIV
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