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Tester for magnetic property of magnetostriction material

A magnetostrictive material and tester technology, applied in magnetostrictive performance measurement, magnetic performance measurement, etc., can solve the problems that multi-parameter magnetic measurement systems cannot achieve measurement, etc., and achieve the effect of strong practicability and simple operation

Active Publication Date: 2014-02-05
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for materials with low saturation magnetic fields such as Fe-Ga, Fe-Ni, Fe-Co, etc., the inverse magnetostrictive effect when the pressure changes and the magnetic property test under dynamic excitation conditions, the multi-parameter magnetic measurement system cannot realize the measurement.
Therefore, for magnetostrictive materials with low saturation magnetic fields, there is no report on the magnetic property tester that can complete its inverse magnetostrictive effect and dynamic excitation conditions.

Method used

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  • Tester for magnetic property of magnetostriction material
  • Tester for magnetic property of magnetostriction material
  • Tester for magnetic property of magnetostriction material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1 Magnetostrictive material positive magnetostrictive effect measurement: the measured magnetostrictive material of low saturation magnetic field in the present embodiment adopts Fe-Ga alloy rod, and this material diameter is 10mm, and length is 40mm, and Fe-Ga alloy composition It is polycrystalline Fe83Ga17. The stress applying device is 769YP-24B powder hydraulic tablet press, whose maximum output force can reach 2400N. Standard force sensor 9 selects JLBU-5T type standard force sensor for use. figure 1 A schematic diagram of the tester.

[0037] The installation process of the experimental platform is as follows: figure 2 The method shown pre-installs the main measurement part of the tester. Take out the tester figure 1 The permanent magnet 14 in. Place the standard force sensor 9 on the top cover 10, place the main measuring part on the force sensor 9, and turn the hand wheel 13 to fix the hand wheel, the main measuring part and the force sensor co...

Embodiment 2

[0039] Embodiment 2 Magnetostrictive material inverse magnetostrictive effect measurement: the measured magnetostrictive material of low saturation magnetic field in the present embodiment adopts Fe-Ga alloy rod, and this material diameter 10mm, length 40mm, Fe-Ga alloy composition polycrystalline Fe 83 Ga 17 . The 769YP-24B powder hydraulic tablet press is selected, and its maximum output force can reach 2400N. Choose JLBU-5T standard force sensor. figure 1 A schematic diagram of the tester.

[0040] The installation process of the experimental platform is the same as in Example 1.

[0041] Experimental process and results: At room temperature, connect DF1731SL10A DC regulated power supply, Hall element A1321LUA power supply, SDY2103 dynamic strain gauge power supply, HT701 digital fluxmeter power supply, and force sensor JLBU-5T sensor power supply. Applying a DC current to the coil 2 in the device generates the required bias magnetic field. The tablet press output pre...

Embodiment 3

[0042] Embodiment 3 Measurement of dynamic characteristics of magnetostrictive material: the measured magnetostrictive material of low saturation magnetic field in this embodiment adopts Fe-Ga alloy rod, the diameter of this material is 10mm, the length is 40mm, and the composition of Fe-Ga alloy is polycrystalline Fe 83 Ga 17 . The 769YP-24B powder hydraulic tablet press is selected, and its maximum output force can reach 2400N. Choose JLBU-5T standard force sensor. figure 1 A schematic diagram of the tester.

[0043] The installation process of the experimental platform: place the standard force sensor 9 on the top cover 10 of the tablet press, place the main measuring part on the force sensor 9, and place the permanent magnet 14 on the handwheel 13 and the upper pole head 4 of the main measuring part Between, turn handwheel 13 and make handwheel, permanent magnet, main measuring part, force sensor coaxially fix. The permanent magnet is used to generate the bias magneti...

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Abstract

The invention relates to a tester for the magnetic property of a magnetostriction material. The tester comprises a main measurement component, a standard force sensor, a stress applying device and a permanent magnet. The main measurement component is composed of an upper loop module, a lower loop module, an upper pole head, a lower pole head, a left exciting coil, a right exciting coil and the magnetostriction material to be tested. The overall structure of the main measurement component is in bilateral symmetry. Through the application of the main measurement component and the stress applying device, the device can test the property of the positive magnetostriction effect and the property of the converse magnetostriction effect, can carry out a magnetic property test under the condition of dynamic excitation, and is simple in structure and high in flexibility.

Description

technical field [0001] The invention belongs to the field of magnetic property testing of magnetostrictive materials, in particular to a magnetic property testing instrument with iron-based magnetostrictive materials as the main object. Background technique [0002] Magnetostrictive material is a new type of functional material. The material will change in length and magnetic induction (or magnetization) under the action of magnetic field and stress, and can be widely used in actuators, sensors, precision measurement and control, energy conversion and other fields. Magnetostrictive materials mainly have two effects: magnetostriction and inverse magnetostriction. The magnetostrictive effect refers to the change of magnetostriction and magnetization of the material under the action of a magnetic field, and the inverse magnetostrictive effect refers to the change of magnetostriction and magnetization of the material under the action of stress. The application of magnetostrict...

Claims

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Application Information

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IPC IPC(8): G01R33/18
Inventor 翁玲罗柠孙英黄文美王博文
Owner HEBEI UNIV OF TECH
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