CN101838927A - Testing device and method for magnetic induction intensity of textile surfaces - Google Patents
Testing device and method for magnetic induction intensity of textile surfaces Download PDFInfo
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- CN101838927A CN101838927A CN 201010185336 CN201010185336A CN101838927A CN 101838927 A CN101838927 A CN 101838927A CN 201010185336 CN201010185336 CN 201010185336 CN 201010185336 A CN201010185336 A CN 201010185336A CN 101838927 A CN101838927 A CN 101838927A
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Abstract
The invention relates to testing device and method for magnetic induction intensity of textile surfaces. The testing device comprises a teslameter, a bracket and a sample plate. The intensity of the magnetic field of a textile surface can be tested in an accurate standard way by the testing device with the testing method provided by the invention, thereby overcoming testing errors caused by the lack of necessary testing devices and artificial operation.
Description
Technical field:
The present invention relates to the textile test field, especially the testing arrangement of magnetic induction intensity of textile surfaces and method of testing are applicable to exploitation, production and the detection of magnetic textiles.
Background technology:
The magnetic textiles is meant by technology such as blending, coatings magnetic material is combined with textile material, makes textiles produce magnetic field.This textiles and human body are regular contacts the medical health care function that can bring into play magnetic field, is that magnetic field acts on the good approach of human body.The magnetic textiles kind of at present magnetic being developed by the mode of blend spinning and post processing is a lot, research and development and the enterprise that produces are also a lot, but about the also not research of test of fabric magnetic field size, production, research and development and detection department all wish to have one to guarantee normalized testing arrangement and method of testing.
At present, because the magnetic field intensity of textiles is fainter, most of enterprise only is to use the magnetometer of head transformation to detect cloth qualitatively to be had nonmagneticly, can't quantitatively detect the magnetic field size.In the method for testing that other are relevant such as the assay method of rolling bearing residual magnetism, what use is Tesla meter, the axial hall probe of people's hand operated Tesla meter is vertical with the tested surface of rolling bearing downwards, probe keeps the plumbness mobile test on measured surface, but this method is applied directly in the textile field, because textiles is a soft material, especially fluffy fabric, axial probe produces downward pressure in textile surface mobile test meeting to textiles, and the pressure of generation can cause depressed deformation on attenuation of textiles thickness or the thickness direction.The distance affects test value on hall probe test surfaces and tested surface, usually distance is more little, and test value is big more, is difficult to the test value that control causes the attenuation of textiles thickness to the pressure of textiles and then has influence on hall probe during the test of people's hand operated probe.Depressed deformation can not guarantee that probe axially keeps vertical with textile surface on the thickness direction, causes bit errors 1-cos θ if the angular deflection meeting takes place, and as being 1 ° when the drift angle, then will produce 0.15% bit errors, thereby influence test result.Thereby the variant drift angle of textiles thickness and generation of causing of power that applies in different testers, the different test process is different, causes the repeated relatively poor of test result.The area of the required test of textiles is big simultaneously, and test data is many, and people's hand operated probe constantly applies active force and very easily damages the sensing unit hall probe in the test process.
Summary of the invention:
The present invention proposes a kind of testing arrangement and method of testing of magnetic induction intensity of textile surfaces at above-mentioned defective, be used for the magnetic textiles exploitation, produce and detection.
The technical scheme of technical solution problem of the present invention is as follows:
A kind of testing arrangement of magnetic induction intensity of textile surfaces, it is characterized in that it comprises Tesla meter (1), support (2), the axial hall probe (3) of Tesla meter (1) is fixed in the support (2), by variety of way smooth being close under tension-free state of tested fabric is fixed on sample board (4) bottom lower surface.
Described variety of way can adopt clamping or stickup or other modes, and clamping or stickup or other modes can be by wood clamp or plastic clip or two-sided tape or other lightweight non-magnet_conductible materials.
Described support (2) adopts non-magnet_conductible material to make, the height of support (2) is slightly larger than the length of axial hall probe (3), support (2) contains smooth smooth upper surface, upper surface is the level of state, the length and width of upper surface should be respectively 2 times of sample length and width at least, and the centre bit of upper surface is equipped with an aperture, the size of aperture and shape and axial hall probe (3) cross section are consistent, at support (2) upper surface, the center of small holes is used a standardized straight line L parallel with any limit of upper surface of crayon and a straight line H vertical with straight line L respectively.
Described non-magnet_conductible material is copper aluminium or timber or plastics or other materials.
Described axial hall probe (3) inlay be fixed in the support (2) and the test surfaces of probe be end face upwards, axially the axial direction of hall probe (3) is vertical with support (2) upper surface, and axial hall probe (3) passes the aperture of support (2) upper surface and the test surfaces of probe is end face and the equal or slightly high 1～2mm of support (2) upper surface.
Described sample board (4) adopts the lightweight black plastic to make
The shape structure, the smooth and length and width in the bottom of sample board are consistent with sample size, and the both sides height should make things convenient for people's hand operated sample board to move.
A kind of method of testing of testing arrangement of magnetic induction intensity of textile surfaces is characterized in that the step of this method of testing is as follows:
1. open the power supply of Tesla meter, instrument preheating 15min～30min;
2. a slice light screening material is placed on casing (2) upper surface and covers axial hall probe (3), instrument is carried out school zero, making the initial magnetic induction intensity value of Tesla meter in measurement environment is zero;
3. a sample is not had and be fixed on sample board (4) bottom lower surface being close to of tension level(l)ing;
4. remove light screening material, simultaneously sample board (4) is placed on casing (2) upper surface and covers axial hall probe (3), sample board (4) is fixed with one of sample and faces down to place specimen surface is contacted with axial hall probe (3) test surfaces;
5. two hands are placed on the both sides of sample board (4), the slow mobile sample board of level, make the Tesla meter even test fabric surface induction intensity of trying one's best, sample board when left and right directions moves (4) the right and left should not crossed straight line H, straight line L should not crossed in the both sides up and down of sample board when above-below direction moves (4), press the data save button of Tesla meter in the moving process simultaneously, write down 100 test datas after, stop the test;
6. sample board (4) being removed, simultaneously light screening material is placed on casing (2) upper surface and covers axial hall probe (3), sample is taken off from sample board (4), is the sample of 150mm * 150mm according to step (3)～(5) test 5 block sizes successively;
7. calculate the mean value of 5 samples, with the mean value of 5 samples test result as tested magnetic induction intensity of textile surfaces.
At present this field does not have the test method of quantitative assay through the little magnetic field of textile surface of spinning or back Collator Mode loading permanent-magnet material, the present invention proposes the testing arrangement and the test method of quantitative test textile surface Weak magentic-field first, the present invention realizes test by being that end face upwards is fixed in the casing with holes with the hall probe test surfaces with moving cloth.When using this testing arrangement to overcome the test of people's hand operated hall probe, because textiles is a soft material, probe produces pressure in textile surface mobile test meeting and makes its distortion, thereby the angle that makes textiles thickness and hall probe and textile surface is difficult to control, the problem that test result repeatability is relatively poor, simultaneously also overcome people's hand operated hall probe and tested the problem that hall probe very easily damages repeatedly.
The present invention not only testing arrangement structural framing is new, rational in infrastructure, and the method for testing standard, and its test result is more accurate.
Description of drawings:
Fig. 1 is the schematic diagram of testing arrangement of the present invention;
Fig. 2, Fig. 3 are the exploded view of testing arrangement shown in Figure 1.
The 1-Tesla meter
The 2-support
The axial hall probe of 3-
The 4-sample board
The specific embodiment:
Embodiment 1: the contrast of the test of people's hand operated probe and this method test result
Get the fluffy magnetic fabric of an about 5mm of thickness, 5 on the sample that uniform clip size is 150mm * 150mm.Open Tesla meter, instrument preheating 30min.The upper surface that a slice light screening material is placed on support covers axial hall probe, enters the operation interface of Tesla meter, returns to zero, and making the initial value of Tesla meter in test environment is zero.A sample by the smooth lower surface that sticks on sample board bottom of two-sided tape, is posted one of sample with sample board and faces down and be placed on the casing, and making the specimen surface and the test surfaces of hall probe is that end face contacts.Both hands are placed on the sample board both sides and slowly promote, sample board the right and left should not crossed straight line H when left and right directions moved, sample board should not crossed straight line L in both sides up and down when above-below direction moved, the automatic record test data of instrument in the test process, each sample is tested 100 data as far as possible uniformly, tests 5 samples successively.Calculate the mean value of 5 samples, with the mean value of 5 samples result of the test as sample.
Table one: people's hand operated probe test result
| Testing time | ??1 | ??2 | ??3 | ??4 | ??5 | ??6 | ??7 | ??8 | ??9 | ??10 |
| Sample surfaces magnetic induction intensity | ??0.05 | ??0.07 | ??0.10 | ??0.03 | ??0.11 | ??0.06 | ??0.05 | ??0.10 | ??0.05 | ??0.03 |
Data unit in the table is mT
Table two: this method test result
| Testing time | ??1 | ??2 | ??3 | ??4 | ??5 | ??6 | ??7 | ??8 | ??9 | ??10 |
| Sample surfaces magnetic induction intensity | ??0.06 | ??0.05 | ??0.06 | ??0.06 | ??0.07 | ??0.07 | ??0.06 | ??0.05 | ??0.06 | ??0.06 |
Data unit in the table is mT
Embodiment 2:
The test lining is the polypropylene fibre magnetic knitting cloth of the about 2mm of thickness
Table three: the test result of polypropylene fibre magnetic knitting cloth surface induction intensity
| Testing time | ??1 | ??2 | ??3 | ??4 | ??5 | ??6 | ??7 | ??8 | ??9 | ??10 |
| Fabric face magnetic induction intensity | ??0.10 | ??0.10 | ??0.10 | ??0.11 | ??0.11 | ??0.10 | ??0.10 | ??0.12 | ??0.10 | ??0.11 |
Data unit in the table is mT
From the correction data of table one and table two, more stable with the data of testing arrangement of the present invention and its test of method of testing, can find out further that from the test data of table three test result of the present invention is stable, repeatability is better.
Claims (7)
1. the testing arrangement of a magnetic induction intensity of textile surfaces, it is characterized in that it comprises Tesla meter (1), support (2), the axial hall probe (3) of Tesla meter (1) is fixed in the support (2), by variety of way smooth being close under tension-free state of tested fabric is fixed on sample board (4) bottom lower surface.
2. the testing arrangement of magnetic induction intensity of textile surfaces according to claim 1, described variety of way can adopt clamping or stickup or other modes, and clamping or stickup or other modes can be by wood clamp or plastic clip or two-sided tape or other lightweight non-magnet_conductible materials.
3. the testing arrangement of magnetic induction intensity of textile surfaces according to claim 1, it is characterized in that described support (2) adopts non-magnet_conductible material to make, the height of support (2) is slightly larger than the length of axial hall probe (3), support (2) contains smooth smooth upper surface, upper surface is the level of state, the length of upper surface, the wide sample that should be respectively at least is long, wide 2 times, and the centre bit of upper surface is equipped with an aperture, the size of aperture and shape and axial hall probe (3) cross section are consistent, at support (2) upper surface, the center of small holes is used a standardized straight line L parallel with any limit of upper surface of crayon and a straight line H vertical with straight line L respectively.
4. the testing arrangement of magnetic induction intensity of textile surfaces according to claim 3 is characterized in that described non-magnet_conductible material is copper aluminium or timber or plastics or other materials.
5. the testing arrangement of magnetic induction intensity of textile surfaces according to claim 1, it is characterized in that described axial hall probe (3) inlay be fixed in the support (2) and the test surfaces of probe be end face upwards, axially the axial direction of hall probe (3) is vertical with support (2) upper surface, and axial hall probe (3) passes the aperture of support (2) upper surface and the test surfaces of probe is end face and the equal or slightly high 1～2mm of support (2) upper surface.
6. the testing arrangement of magnetic induction intensity of textile surfaces according to claim 1 is characterized in that described sample board (4) adopts the lightweight black plastic to make
The shape structure, the smooth and length and width in the bottom of sample board are consistent with sample size, and the both sides height should make things convenient for people's hand operated sample board to move.
7. according to the method for testing of the testing arrangement of each the described magnetic induction intensity of textile surfaces in the claim 1-6 item, it is characterized in that the step of this method of testing is as follows:
1. open the power supply of Tesla meter, instrument preheating 15min～30min;
2. a slice light screening material is placed on casing (2) upper surface and covers axial hall probe (3), instrument is carried out school zero, making the initial magnetic induction intensity value of Tesla meter in measurement environment is zero;
3. a sample is not had and be fixed on sample board (4) bottom lower surface being close to of tension level(l)ing;
4. remove light screening material, simultaneously sample board (4) is placed on casing (2) upper surface and covers axial hall probe (3), sample board (4) is fixed with one of sample and faces down to place specimen surface is contacted with axial hall probe (3) test surfaces;
5. two hands are placed on the both sides of sample board (4), the slow mobile sample board of level, make the Tesla meter even test fabric surface induction intensity of trying one's best, sample board when left and right directions moves (4) the right and left should not crossed straight line H, straight line L should not crossed in the both sides up and down of sample board when above-below direction moves (4), press the data save button of Tesla meter in the moving process simultaneously, write down 100 test datas after, stop the test;
6. sample board (4) being removed, simultaneously light screening material is placed on casing (2) upper surface and covers axial hall probe (3), sample is taken off from sample board (4), is the sample of 150mm * 150mm according to step (3)～(5) test 5 block sizes successively;
7. calculate the mean value of 5 samples, with the mean value of 5 samples test result as tested magnetic induction intensity of textile surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010185336 CN101838927A (en) | 2010-05-21 | 2010-05-21 | Testing device and method for magnetic induction intensity of textile surfaces |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010185336 CN101838927A (en) | 2010-05-21 | 2010-05-21 | Testing device and method for magnetic induction intensity of textile surfaces |
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| CN101838927A true CN101838927A (en) | 2010-09-22 |
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| CN 201010185336 Pending CN101838927A (en) | 2010-05-21 | 2010-05-21 | Testing device and method for magnetic induction intensity of textile surfaces |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625365A (en) * | 2015-01-06 | 2015-05-20 | 南通太平洋海洋工程有限公司 | Method for overcoming reelpipe longitudinal weld welding magnetic field |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58150846A (en) * | 1982-03-03 | 1983-09-07 | Toshiba Corp | Test plate for nuclear magnetic resonance device |
| US5307228A (en) * | 1991-12-04 | 1994-04-26 | Grasty James S | Magnetic field damage indicator |
| EP1450176A1 (en) * | 2003-02-21 | 2004-08-25 | Liaisons Electroniques-Mecaniques Lem S.A. | Magnetic field sensor and electrical current sensor therewith |
| CN201037855Y (en) * | 2007-04-11 | 2008-03-19 | 太仓市申华纺织有限公司 | Textile electromagnetic radiation proof capability tester |
| CN201335884Y (en) * | 2008-12-26 | 2009-10-28 | 北京有色金属研究总院 | Magnetic induction intensity positioned measuring instrument |
-
2010
- 2010-05-21 CN CN 201010185336 patent/CN101838927A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58150846A (en) * | 1982-03-03 | 1983-09-07 | Toshiba Corp | Test plate for nuclear magnetic resonance device |
| US5307228A (en) * | 1991-12-04 | 1994-04-26 | Grasty James S | Magnetic field damage indicator |
| EP1450176A1 (en) * | 2003-02-21 | 2004-08-25 | Liaisons Electroniques-Mecaniques Lem S.A. | Magnetic field sensor and electrical current sensor therewith |
| CN201037855Y (en) * | 2007-04-11 | 2008-03-19 | 太仓市申华纺织有限公司 | Textile electromagnetic radiation proof capability tester |
| CN201335884Y (en) * | 2008-12-26 | 2009-10-28 | 北京有色金属研究总院 | Magnetic induction intensity positioned measuring instrument |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625365A (en) * | 2015-01-06 | 2015-05-20 | 南通太平洋海洋工程有限公司 | Method for overcoming reelpipe longitudinal weld welding magnetic field |
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Open date: 20100922 |