CN108562862B - Test piece clamping device for magneto-electric coupling coefficient test - Google Patents
Test piece clamping device for magneto-electric coupling coefficient test Download PDFInfo
- Publication number
- CN108562862B CN108562862B CN201810640349.XA CN201810640349A CN108562862B CN 108562862 B CN108562862 B CN 108562862B CN 201810640349 A CN201810640349 A CN 201810640349A CN 108562862 B CN108562862 B CN 108562862B
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- test piece
- fixing device
- connecting rod
- magneto
- rear end
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- 238000012360 testing method Methods 0.000 title claims abstract description 76
- 230000008878 coupling Effects 0.000 title claims abstract description 19
- 238000010168 coupling process Methods 0.000 title claims abstract description 19
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 19
- 239000000523 sample Substances 0.000 claims abstract description 18
- 238000003475 lamination Methods 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 description 6
- 239000002131 composite material Substances 0.000 description 3
- 230000005690 magnetoelectric effect Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
- G01R33/1253—Measuring galvano-magnetic properties
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Measuring Leads Or Probes (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a test piece clamping device for testing magneto-electric coupling coefficients, which is characterized by comprising a base, a supporting rod, a first connecting rod, a second connecting rod, a probe fixing device, a cantilever test piece fixing device and a simply supported beam type test piece fixing device, wherein the cantilever test piece fixing device and the simply supported beam type test piece fixing device are respectively used for being fixedly connected with the second connecting rod; the clamping device has the advantages that the clamping device can be used for testing test pieces with different sizes, the test piece replacement is simple and convenient, and the universality is good; but also can meet different forms of boundary condition experiments.
Description
Technical Field
The invention relates to a performance testing device for a magnetoelectric composite material, in particular to a test piece clamping device for testing a magnetoelectric coupling coefficient.
Background
The new-type magnetoelectric composite material is an important intelligent material and information functional material, and is formed from piezoelectric material and piezomagnetic material by compounding them according to a certain mode, and said material can implement mutual conversion between mechanical energy, electric energy and magnetic energy, and its magnetic-electric-force multi-field coupling effect can make it become important material for making sensor, magnetoelectric control device, microwave device and other electronic products. The research on the magneto-electric effect mechanism under the multi-energy field coupling based on the piezoelectric/piezomagnetic layer composite structure is carried out, and the magneto-electric effect mechanism can provide wider application prospect for multifunctional devices (such as a magneto-electric sensor, a magnetometer, a band-stop filter, a resonator and the like). The magnetoelectric coupling performance is one of the most important parameters of the magnetoelectric laminated structure, the magnitude of the magnetoelectric coupling coefficient reflects the strength of the coupling performance of the magnetoelectric structure, the magnetoelectric coupling coefficient reaches the maximum value in resonance, and in order to meet the requirements that the magnetoelectric laminated device is suitable for different working occasions, the magnetoelectric laminated device is required to work at different resonance frequencies, so that the magnetoelectric coupling performance under different boundary conditions needs to be tested. However, at present, when the magneto-electric coupling coefficient of a magneto-electric lamination test piece is tested, the clamping device for fixing the magneto-electric lamination test piece can only fix a test piece with a certain size, the universality is poor, and when the test is performed, the boundary condition of the magneto-electric lamination test piece is not easy to change, and a larger error exists in the magnetic field around the tested test piece.
Disclosure of Invention
The invention aims to solve the technical problem of providing the test piece clamping device for the magneto-electric coupling coefficient test, which can effectively clamp magneto-electric lamination test pieces with different sizes, has good universality and can change the natural frequency of the test piece so as to obtain different test boundary conditions.
The technical scheme adopted for solving the technical problems is as follows: a test piece clamping device for magneto-electricity coupling coefficient test, include base, branch, first connecting rod, second connecting rod, probe fixing device, be used for respectively with second connecting rod fixed connection's cantilever type test piece fixing device, simply supported beam type test piece fixing device, the branch vertical fixing be in the base on, first connecting rod level set up and one end is fixed and be provided with the sliding sleeve, the sliding sleeve cover establish on the branch and fix through holding screw, the fixed setting of probe fixing device be in the other end of first connecting rod, the second connecting rod be L type, the vertical portion of second connecting rod with first connecting rod fixed connection, the horizontal part of second connecting rod be located first connecting rod under and with first connecting rod parallel.
Further, the probe fixing device comprises a rubber sleeve, a connecting hole with a small inner opening is formed in the rear end of the rubber sleeve, a connecting column with the shape matched with that of the connecting hole is integrally formed in the other end of the first connecting rod, the connecting column is spliced with the connecting hole, and a slot for splicing a probe is formed in the front end of the rubber sleeve.
Further, cantilever type test piece fixing device include adjusting bolt, have elastic last arm and lower arm, last arm's rear end with lower arm's rear end body coupling form the grip slipper of U type, the rear end of grip slipper with the horizontal part of second connecting rod be connected, last arm's lower surface front end with lower arm's upper surface front end fixed respectively be provided with be used for with the top of magnetoelectric lamination test piece contact, adjusting bolt pass perpendicularly last arm with lower arm and fixed through the nut.
Further, the rear end of the clamping seat is provided with a plug hole, and the horizontal part of the second connecting rod is tightly plugged with the plug hole.
Further, simple beam type test piece fixing device include mounting bracket and push pedal, the rear end face of mounting bracket with the horizontal part of second connecting rod be connected, upper and lower both ends of mounting bracket be provided with the spout respectively, upper and lower both ends of push pedal fixedly respectively be provided with the slider, the slider with spout horizontal sliding fit, the spout in be provided with the spacer, set screw pass the spout with the spacer looks spiro union, the rear end face of push pedal fixedly be provided with the spring post, the spring post with the mounting bracket between fixedly be provided with the spring, the front end face of push pedal with the mounting bracket on rather than the relative one side be fixed respectively and be provided with the top.
Further, a connecting sleeve is fixedly arranged on the rear end face of the mounting frame, and the horizontal part of the second connecting rod is tightly inserted into the connecting sleeve.
Furthermore, the center coat is provided with a protective sleeve, so that the magneto-electric lamination test piece can be prevented from slipping.
Compared with the prior art, the clamping device has the advantages that as the cantilever type test piece fixing device and the simply supported beam type test piece fixing device are arranged in the clamping device, magneto-electric laminated test pieces with different sizes can be clamped, so that the clamping device can be used for testing the test pieces with different sizes, and the test piece replacement is simple and convenient, and the universality is good; the cantilever type test piece fixing device or the simply supported beam type test piece fixing device is used for fixing the magnetoelectric lamination test piece, so that the test piece can have different natural frequencies when being clamped, and the experiment of different forms of boundary conditions can be met; in addition, because the probe fixing device is further arranged in the clamping device and is positioned right above the test piece fixing device, namely, the probe and the magnetoelectric lamination test piece are kept on the same vertical plane, magnetic induction lines during testing vertically penetrate through the probe, and the magnetic field around the magnetoelectric lamination test piece measured by the probe is more accurate.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the probe fixing apparatus of the present invention;
FIG. 3 is a schematic structural view of the simply supported beam test piece fixing device of the present invention;
FIG. 4 is an enlarged schematic view of FIG. 3 at A;
FIG. 5 is a top view of FIG. 4;
FIG. 6 is a schematic view of a cantilever test specimen holder according to the present invention.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
As shown in the figure, the test piece clamping device for magneto-electric coupling coefficient test comprises a base 1, a supporting rod 2, a first connecting rod 3, a second connecting rod 4, a probe fixing device, a cantilever test piece fixing device and a simply supported beam type test piece fixing device which are respectively used for being fixedly connected with the second connecting rod 4, wherein the supporting rod 2 is vertically fixed on the base 1, the first connecting rod 3 is horizontally arranged, one end of the first connecting rod is fixedly provided with a sliding sleeve 31, the sliding sleeve 31 is sleeved on the supporting rod 2 and is fixed through a set screw 32, the probe fixing device comprises a rubber sleeve 5, the rear end of the rubber sleeve 5 is provided with a connecting hole 51 with a small inner opening, the other end of the first connecting rod 3 is integrally provided with a connecting column 33 with a shape matched with the connecting hole 51, the connecting column 33 is spliced with the connecting hole 51, the front end of the rubber sleeve 5 is provided with a slot 52 for splicing the probe 100, the second connecting rod 4 is in an L shape, the vertical part 41 of the second connecting rod 4 is fixedly connected with the first connecting rod 3, the horizontal part 42 of the second connecting rod 4 is positioned right below the first connecting rod 3 and is parallel to the first connecting rod 3, the cantilever type test piece fixing device comprises an adjusting bolt 63, an elastic upper clamping arm 61 and a lower clamping arm 62, the rear end of the upper clamping arm 61 and the rear end of the lower clamping arm 62 are integrally connected to form a U-shaped clamping seat, the rear end of the clamping seat is provided with a plug hole (not marked in the figure), the horizontal part 42 of the second connecting rod 4 is tightly plugged in the plug hole, the front end of the lower surface of the upper clamping arm 61 and the front end of the upper surface of the lower clamping arm 62 are respectively fixedly provided with a tip 64 for contacting with the magneto-electric lamination test piece 200, and the adjusting bolt 63 vertically penetrates through the upper clamping arm 61 and the lower clamping arm 62 and is fixed through a nut 65;
The simple beam type test piece fixing device comprises a mounting frame 7 and a push plate 8, wherein a connecting sleeve 71 is fixedly arranged on the rear end face of the mounting frame 7, a horizontal portion 42 of a second connecting rod 4 is tightly connected with the connecting sleeve 71 in a plugging mode, sliding grooves 72 are respectively arranged at the upper end and the lower end of the mounting frame 7, sliding blocks 81 are respectively fixedly arranged at the upper end and the lower end of the push plate 8, the sliding blocks 81 are horizontally matched with the sliding grooves 72 in a sliding mode, positioning plates 74 are arranged in the sliding grooves 72, positioning screws 73 penetrate through the sliding grooves 72 to be in threaded connection with the positioning plates 74, a spring column 82 is fixedly arranged on the rear end face of the push plate 8, a spring 9 is fixedly arranged between the spring column 82 and the mounting frame 7, a center 64 is respectively fixedly arranged on the front end face of the push plate 8 and the opposite side of the mounting frame 7, and a protective sleeve 66 is sleeved outside the center 64.
In the above embodiment, the cantilever type test piece fixing device and the simply supported beam type test piece fixing device are selectively connected to the horizontal portion 42 of the second link 4, not simultaneously connected to the horizontal portion 42 of the second link 4.
Claims (4)
1. The test piece clamping device for magneto-electric coupling coefficient testing is characterized by comprising a base, a supporting rod, a first connecting rod, a second connecting rod, a probe fixing device, a cantilever test piece fixing device and a simply supported beam type test piece fixing device, wherein the cantilever test piece fixing device and the simply supported beam type test piece fixing device are respectively used for being fixedly connected with the second connecting rod;
the probe fixing device comprises a rubber sleeve, wherein the rear end of the rubber sleeve is provided with a connecting hole with a large inner opening, the other end of the first connecting rod is integrally provided with a connecting column with a shape matched with that of the connecting hole, the connecting column is spliced with the connecting hole, and the front end of the rubber sleeve is provided with a slot for splicing a probe;
The cantilever type test piece fixing device comprises an adjusting bolt, an elastic upper clamping arm and a lower clamping arm, wherein the rear end of the upper clamping arm is integrally connected with the rear end of the lower clamping arm to form a U-shaped clamping seat, the rear end of the clamping seat is connected with the horizontal part of the second connecting rod, the front end of the lower surface of the upper clamping arm and the front end of the upper surface of the lower clamping arm are respectively and fixedly provided with a center for contacting with a magneto-electric laminated test piece, and the adjusting bolt vertically penetrates through the upper clamping arm and the lower clamping arm and is fixed through a nut;
the simple supporting beam type test piece fixing device comprises a mounting frame and a pushing plate, wherein the rear end face of the mounting frame is connected with the horizontal part of the second connecting rod, sliding grooves are respectively formed in the upper end and the lower end of the mounting frame, sliding blocks are respectively fixedly arranged at the upper end and the lower end of the pushing plate, the sliding blocks are horizontally matched with the sliding grooves in a sliding manner, positioning plates are arranged in the sliding grooves, positioning screws penetrate through the sliding grooves and are in threaded connection with the positioning plates, a spring column is fixedly arranged on the rear end face of the pushing plate, a spring is fixedly arranged between the spring column and the mounting frame, and tips are respectively fixedly arranged on the front end face of the pushing plate and the face, opposite to the front end face of the pushing plate, of the mounting frame;
The probe fixing device is positioned right above the test piece fixing device, namely, the probe and the magnetoelectric lamination test piece are kept on the same vertical plane, and the cantilever type test piece fixing device and the simply supported beam type test piece fixing device are selectively connected with the horizontal part of the second connecting rod instead of being simultaneously connected with the horizontal part of the second connecting rod.
2. A specimen holding device for magneto-electric coupling coefficient testing as defined in claim 1, wherein: the rear end of the clamping seat is provided with a plug hole, and the horizontal part of the second connecting rod is tightly plugged with the plug hole.
3. A specimen holding device for magneto-electric coupling coefficient testing as defined in claim 1, wherein: the rear end face of the mounting frame is fixedly provided with a connecting sleeve, and the horizontal part of the second connecting rod is tightly spliced with the connecting sleeve.
4. A specimen holding device for magneto-electric coupling coefficient testing as defined in claim 1, wherein: the center is sleeved with a protective sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810640349.XA CN108562862B (en) | 2018-06-21 | 2018-06-21 | Test piece clamping device for magneto-electric coupling coefficient test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810640349.XA CN108562862B (en) | 2018-06-21 | 2018-06-21 | Test piece clamping device for magneto-electric coupling coefficient test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108562862A CN108562862A (en) | 2018-09-21 |
| CN108562862B true CN108562862B (en) | 2024-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810640349.XA Active CN108562862B (en) | 2018-06-21 | 2018-06-21 | Test piece clamping device for magneto-electric coupling coefficient test |
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| Country | Link |
|---|---|
| CN (1) | CN108562862B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571467A (en) * | 2008-04-30 | 2009-11-04 | 中国科学院金属研究所 | Test system and test method for dynamic bending fatigue property of thin film material |
| CN103792145A (en) * | 2012-10-30 | 2014-05-14 | 莆田市产品质量检验所 | Overall stiffness measurement method for paper meal plate |
| CN204564181U (en) * | 2015-03-31 | 2015-08-19 | 黄一鸣 | A kind of physics teaching iron stand |
| CN105301199A (en) * | 2015-11-11 | 2016-02-03 | 北京大学 | Probe system multi-filed loading device |
| CN106597329A (en) * | 2016-11-15 | 2017-04-26 | 华中科技大学 | Automatic magneto-electricity coefficient test system |
| CN206710231U (en) * | 2017-05-16 | 2017-12-05 | 南京英派克检测有限责任公司 | Impact tester for simple supported beam |
| CN207379412U (en) * | 2017-09-07 | 2018-05-18 | 山东交通学院 | A kind of experimental rig for being used to measure height of Marshall specimen and temperature |
| CN208443994U (en) * | 2018-06-21 | 2019-01-29 | 宁波大学 | A kind of specimen holder device for the test of magneto-electric coupled coefficient |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8179134B2 (en) * | 2008-06-30 | 2012-05-15 | Hitachi High-Technologies Corporation | Handling robot of magnetic head assembly, magnetic head test method and magnetic head tester |
-
2018
- 2018-06-21 CN CN201810640349.XA patent/CN108562862B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571467A (en) * | 2008-04-30 | 2009-11-04 | 中国科学院金属研究所 | Test system and test method for dynamic bending fatigue property of thin film material |
| CN103792145A (en) * | 2012-10-30 | 2014-05-14 | 莆田市产品质量检验所 | Overall stiffness measurement method for paper meal plate |
| CN204564181U (en) * | 2015-03-31 | 2015-08-19 | 黄一鸣 | A kind of physics teaching iron stand |
| CN105301199A (en) * | 2015-11-11 | 2016-02-03 | 北京大学 | Probe system multi-filed loading device |
| CN106597329A (en) * | 2016-11-15 | 2017-04-26 | 华中科技大学 | Automatic magneto-electricity coefficient test system |
| CN206710231U (en) * | 2017-05-16 | 2017-12-05 | 南京英派克检测有限责任公司 | Impact tester for simple supported beam |
| CN207379412U (en) * | 2017-09-07 | 2018-05-18 | 山东交通学院 | A kind of experimental rig for being used to measure height of Marshall specimen and temperature |
| CN208443994U (en) * | 2018-06-21 | 2019-01-29 | 宁波大学 | A kind of specimen holder device for the test of magneto-electric coupled coefficient |
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| Publication number | Publication date |
|---|---|
| CN108562862A (en) | 2018-09-21 |
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