CN101950005A - Magnetic performance tester for annular soft magnetic material - Google Patents
Magnetic performance tester for annular soft magnetic material Download PDFInfo
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- CN101950005A CN101950005A CN 201010278133 CN201010278133A CN101950005A CN 101950005 A CN101950005 A CN 101950005A CN 201010278133 CN201010278133 CN 201010278133 CN 201010278133 A CN201010278133 A CN 201010278133A CN 101950005 A CN101950005 A CN 101950005A
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- metal probe
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Abstract
The invention discloses a magnetic performance tester for an annular soft magnetic material, and belongs to the technical field of measurement and control. The tester comprises a test device, a processing device and a control device, wherein the test device is connected with the input end of the processing device through a lead, and the input end of the processing device is connected with a data acquisition card of an industrial control computer through a shielding line. The tester can quickly measure the magnetic performance of the annular soft magnetic material by adopting direct digital synthesis (DDS) technology and technology of power amplification and automatic control and the like. The tester has the advantages of novel structure, convenient operation, quick test and good repeatability.
Description
Technical field
What the present invention relates to is the surveying instrument in a kind of observation and control technology field, specifically is a kind of annular soft magnetic material magnetism testing instrument.
Background technology
Soft magnetic material is meant the ferromagnetic material that remanent magnetism and coercive force are all very little, as siliconized plate, pure iron etc.Characteristics are that easy magnetization, easy degaussing and magnetic hysteresis loop are narrower.Soft magnetic material is commonly used to make the iron core of electrical equipment such as motor, transformer, electromagnet.Soft magnetic material is the core component of many products, and its performance and quality will directly influence the quality of final products.By magnetism testing to magnetic material, can improve the q﹠r energy of product, reduce the generation of various faults, increase the service life.
The magnetic parameter commonly used of soft magnetic material has:
1) saturation induction density Bs, its size depends on the composition of material, its pairing physical state is the magnetization vector proper alignment of material internal;
2) residual magnetic flux density Br is the characteristic parameter on the magnetic hysteresis loop, and corresponding magnetic field intensity is got back to 0 o'clock magnetic induction density value;
3) coercive force H
c: be the amount of expression material magnetization complexity, depend on the composition and the defective (impurity, stress etc.) of material;
4) magnetic permeability μ is the ratio of the pairing magnetic induction density of any point and magnetic field intensity on the magnetic hysteresis loop, and is closely related with the device duty.
Because the kind of soft magnetic material is a lot, its magnetic parameter also has nothing in common with each other, and accurately know the magnetic property index of a certain material, just must carry out actual measurement.
The method of testing of annular soft magnetic material magnetic property is coiling magnetizing coil and measurement coil on annular soft magnetic part normally, magnetic ring coil is switched on, make soft magnetic part magnetize, and then produce induction electromotive force measuring on the coil, the magnitude of voltage on the treatment coil and then draw the magnetic parameter of this material then.
The tester that is used at present the soft magnetic material magnetism testing both at home and abroad mostly is used for experimental, needs manually just can carry out test job for soft magnetic part coiling to be measured.When testing, making needs to expend the plenty of time in this way and is used for coiling and removes coil, greatly influenced testing efficiency, be difficult to simultaneously guarantee that test is to carry out under the same conditions, therefore can't guarantee the comparability of testing and the soft magnetism ring component of producing in batches is tested fast.
Through existing literature search is found that patent name is: Collapsible soft-magnetic measuring apparatus, publication number: CN 101403786A.The soft-magnetic measuring apparatus that this patent is mentioned, its structure comprises a plurality of measuring units and closed metering circuit of sample to be tested composition, a stereoplasm frame is arranged in each measuring unit, be wound with magnetizing coil on the framework and measure coil, leave the passage that inserts sample to be tested in the framework of each coiling, the head and the tail of magnetizing coil are connected respectively to the magnetization binding post of base, and the first place of measuring coil is connected respectively to the measurement binding post of base.But this measurement mechanism can only be used to test dismountable ring-type sample to be tested, and can not directly test control by computing machine, so the scope of application is less, and uses inconvenience.
Summary of the invention
The objective of the invention is to overcome problems such as the shortage comparability that exists in the existing test process and test length consuming time, a kind of annular soft magnetic material magnetism testing instrument is provided.This tester novel structure, easy to operate, the quick and good reproducibility of test.
The present invention is achieved by the following technical solutions, the present invention includes: proving installation, treating apparatus and control device, and proving installation is connected with the input end for the treatment of apparatus by lead, and the input/output terminal for the treatment of apparatus is connected with control device by shielding line.
Described proving installation comprises: number of metal probe, two locating guide devices, UUT pickup groove, depression bar, fixedly lower panel, fixedly top panel, base; Metal probe and UUT pickup groove all are positioned at fixedly on the lower panel, and metal probe is distributed on the inner ring and outer ring of UUT pickup groove; Fixedly a printed board is arranged at the lower panel bottom, the pad that distributing on it, and the root weld of metal probe is on pad; A printed board is fixedly also arranged on the top panel, the pad that distributing on it, corresponding with the top of metal probe; Depression bar is connecting locating guide device; Locating guide device links to each other with fixing top panel; Locating guide device adopts linear bearing, and when guaranteeing that depression bar is depressed, metal probe accurately contacts with the pad of top panel; Fixedly lower panel is fixed on the base.
Described treating apparatus comprises: program control signal generation circuit, main coil voltage amplifier circuit, main coil power amplification circuit and secondary coil integrating amplification circuit, wherein: program control signal generation circuit is a core with the AD7008 chip of ADI company, and its signal output part links to each other with the main coil voltage amplifier circuit; The main coil voltage amplifier circuit adopts the OP07 chip, and its output signal links to each other with the input end of power amplification circuit; Power amplification circuit adopts the OPA548 chip, and the metal probe that is equivalent to the main coil part in the signal after amplifying and the proving installation links to each other; The metal probe that the secondary coil integrating amplification circuit is equivalent to the secondary coil part links to each other, the induced potential that produces on the metal probe is amplified and Integral Processing by the secondary coil integrating amplification circuit, these two parts respectively have an OP07 chip, realize that respectively signal amplifies and integrating function.
Described control device comprises: analog-to-digital conversion module and industrial control computer.Analog-to-digital conversion module adopts and grinds the PCI818L data collecting card that magnificent company produces, and the analog signal conversion after treating apparatus can being handled is a digital signal, and analog-to-digital conversion module directly is inserted on the mainboard of industrial control computer; Industrial control computer comprises main frame, display, keyboard and mouse, can handle obtaining digital signal after the analog to digital conversion then by the control of control program realization treating apparatus, and output magnetic hysteresis loop figure and test result.
Described treating apparatus is positioned at base inside.
The present invention is by the metal probe of tested magnet ring both sides and the wiring in the printed board, is equivalent to the coil that is wrapped on the workpiece.Owing to adopted locating guide device to guarantee that probe can corresponding one by one contact with the pad on the upper circuit board, and metal probe resistance is very little, so can magnetize workpiece for measurement after switching on.Workpiece for measurement is placed in the pickup groove.When testing, depress depression bar, the signal generation plate of controlling then in the industrial computer provides signal to circuit, flows through metal probe through the exciting current that produces behind the power amplification circuit, can magnetize workpiece for measurement, and then obtain corresponding test number.
Owing to adopted aforesaid technical scheme, the present invention has following advantage:
The integral mechanical structure novelty, the location is accurate, and has satisfied the measuring accuracy requirement; Owing in measurement, only need be positioned over workpiece for measurement in the pickup groove, depress depression bar, switch on, can obtain the related data of this workpiece magnetic property, improved the repeatability and the testing efficiency of test; Control Software by industrial control computer is tested, and is convenient to operation.
Description of drawings
The each several part structural representation that Fig. 1 relates to for the course of work of the present invention.
Fig. 2 is a proving installation synoptic diagram of the present invention.
Among the figure: 1 metal probe, 2 UUT pickup grooves, 3 fixing lower panels, 4 fixing top panels, 5 positioning and guidings, 6 depression bars, 7 bases, 8 linear bearings.
Fig. 3 is the pcb map on the upper and lower panel in the proving installation of the present invention.
Shown the wiring situation in the upper and lower printed board among the figure.
Fig. 4 is a treating apparatus circuit diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment has provided detailed embodiment being to implement under the prerequisite with the technical solution of the present invention, but protection scope of the present invention is not limited to following embodiment.
As Fig. 1, shown in Figure 2, present embodiment comprises: proving installation, treating apparatus and control device, and proving installation is connected with the input end for the treatment of apparatus by lead, and the input/output terminal for the treatment of apparatus is connected with the control device input/output terminal by shielding line; Described proving installation comprises: metal probe 1, UUT pickup groove 2, fixedly lower panel 3, fixedly top panel 4, positioning and guiding 5, depression bar 6, base 7, linear bearing 8; Metal probe 1 and UUT pickup groove 2 all are positioned at fixedly on the lower panel 3, and metal probe 1 is distributed on the inner ring and outer ring of UUT pickup groove 2; Fixedly a printed board is arranged at lower panel 3 bottoms, the pad that distributing on it, and the root weld of metal probe 1 is on pad; A printed board is fixedly also arranged on the top panel 4, the pad that distributing on it, corresponding with metal probe 1 top; Depression bar 6 is connecting locating guide device 5; Locating guide device 5 links to each other with fixing top panel 4; Locating guide device 5 adopts linear bearing 8, and when guaranteeing that depression bar 6 is depressed, metal probe 1 accurately contacts with the pad of top panel 4; Fixedly lower panel 3 is fixed on the base 7.
As shown in Figure 1, programmable signal generator and modulate circuit constitute treating apparatus, and analog-to-digital conversion module and industrial control computer constitute control device.Analog-to-digital conversion module adopts and grinds the PCI818L data collecting card that magnificent company produces, the voltage signal of gathering can be carried out sending into industrial control computer after the analog to digital conversion, handle via software, obtain the value of saturation magnetic field intensity and magnetic induction density, and draw magnetic hysteresis loop by formula.
As shown in Figure 3, be fixed on metal probe 1 on the lower panel 3 and replaced artificial coiling in the traditional test, overcome its test process length consuming time, lacked the shortcoming of comparability, improved testing efficiency and guaranteed that test can carry out under the same conditions.
As shown in Figure 4, treating apparatus comprises: program control signal generation circuit, main coil voltage amplifier circuit, main coil power amplification circuit and secondary coil integrating amplification circuit, wherein: program control signal generation circuit is a core with the AD7008 chip of ADI company, and its signal output part links to each other with the main coil voltage amplifier circuit; The main coil voltage amplifier circuit adopts the OP07 chip, and its output signal links to each other with the input end of power amplification circuit; Power amplification circuit adopts the OPA548 chip, and the metal probe that is equivalent to the main coil part in the signal after amplifying and the proving installation links to each other; The metal probe that the secondary coil integrating amplification circuit is equivalent to the secondary coil part links to each other, the induced potential that produces on the metal probe is amplified and Integral Processing by the secondary coil integrating amplification circuit, these two parts respectively have an OP07 chip, realize that respectively signal amplifies and integrating function.
Present embodiment is when test, industrial control computer control programmable signal generator provides voltage signal to test circuit, produce exciting current through the power amplifying part in the test circuit, after the magnetization UUT with the voltage signal at parts two ends after the analog-to-digital conversion module collection by the result that can calculate saturation magnetic field intensity and saturation induction density after the software processes in the industrial control computer and show magnetic hysteresis loop.Carry out test operation by mouse, keyboard realization man-machine conversation, measuring process is finished automatically by industrial control computer control.The measurement result liquid crystal display shows.
Claims (3)
1. annular soft magnetic material magnetism testing instrument, comprise: proving installation, treating apparatus and control device, proving installation is connected with the input end for the treatment of apparatus by lead, and the input/output terminal for the treatment of apparatus is connected with the data collecting card of industrial computer by shielding line; It is characterized in that: described proving installation comprises: metal probe (1), UUT pickup groove (2), fixedly lower panel (3), fixedly top panel (4), positioning and guiding (5), depression bar (6), base (7), linear bearing (8); Metal probe (1) and UUT pickup groove (2) all are positioned at fixedly on the lower panel (3), and metal probe (1) is distributed on the inner ring and outer ring of UUT pickup groove (2); Fixedly a printed board is arranged at lower panel (3) bottom, the pad that distributing on it, and the root weld of metal probe (1) is on pad; Fixedly on the top panel (4) printed board is arranged also, the pad that distributing on it, corresponding with metal probe (1) top; Depression bar (6) is connecting locating guide device (5); Locating guide device (5) links to each other with fixing top panel (4); Locating guide device (5) adopts linear bearing (8), guarantees depression bar (6) when depressing, and metal probe (1) accurately contacts with the pad of top panel (4); Fixedly lower panel (3) is fixed on the base (7).
2. annular soft magnetic material magnetism testing instrument as claimed in claim 1 is characterized in that described metal probe (1) is fixed on the UUT pickup groove (2).
3. annular soft magnetic material magnetism testing instrument as claimed in claim 1 is characterized in that, described locating guide device (5) guarantees the accurate location of top panel (4) and lower panel (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010278133 CN101950005A (en) | 2010-09-10 | 2010-09-10 | Magnetic performance tester for annular soft magnetic material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010278133 CN101950005A (en) | 2010-09-10 | 2010-09-10 | Magnetic performance tester for annular soft magnetic material |
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| CN101950005A true CN101950005A (en) | 2011-01-19 |
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| CN 201010278133 Pending CN101950005A (en) | 2010-09-10 | 2010-09-10 | Magnetic performance tester for annular soft magnetic material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105319521A (en) * | 2014-07-21 | 2016-02-10 | 重庆科技学院 | One-click type magnetic energy integrated intelligent testing system |
| CN104122454B (en) * | 2014-07-23 | 2016-12-07 | 中国计量科学研究院 | A kind of soft magnetic materials loss measurement system and method |
| WO2017198167A1 (en) * | 2016-05-17 | 2017-11-23 | 深圳市智信精密仪器有限公司 | Magnetic field intensity detection set |
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| US7233142B1 (en) * | 2004-09-02 | 2007-06-19 | United States Of America As Represented By The Secretary Of The Army | Planer reader of non-erasable magnetic media and local permeability |
| US20080258720A1 (en) * | 2003-05-23 | 2008-10-23 | Jentek Sensors, Inc. | Hybrid wound/etched winding constructs for scanning and monitoring |
| CN101520495A (en) * | 2009-03-02 | 2009-09-02 | 重庆大学 | Device for mapping magnetizing characteristic curve of ferromagnetic materials and mapping method thereof |
| WO2009157055A1 (en) * | 2008-06-24 | 2009-12-30 | 株式会社フォスメガ | Magnetic head, head assembly, and magnetic recording device |
| CN101672823A (en) * | 2009-10-15 | 2010-03-17 | 中钞特种防伪科技有限公司 | System and method for the online detection of magnetic materials |
| CN201477201U (en) * | 2009-04-08 | 2010-05-19 | 常州信息职业技术学院 | Static magnetic property measuring instrument |
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2010
- 2010-09-10 CN CN 201010278133 patent/CN101950005A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080258720A1 (en) * | 2003-05-23 | 2008-10-23 | Jentek Sensors, Inc. | Hybrid wound/etched winding constructs for scanning and monitoring |
| US7233142B1 (en) * | 2004-09-02 | 2007-06-19 | United States Of America As Represented By The Secretary Of The Army | Planer reader of non-erasable magnetic media and local permeability |
| WO2009157055A1 (en) * | 2008-06-24 | 2009-12-30 | 株式会社フォスメガ | Magnetic head, head assembly, and magnetic recording device |
| CN101520495A (en) * | 2009-03-02 | 2009-09-02 | 重庆大学 | Device for mapping magnetizing characteristic curve of ferromagnetic materials and mapping method thereof |
| CN201477201U (en) * | 2009-04-08 | 2010-05-19 | 常州信息职业技术学院 | Static magnetic property measuring instrument |
| CN101672823A (en) * | 2009-10-15 | 2010-03-17 | 中钞特种防伪科技有限公司 | System and method for the online detection of magnetic materials |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105319521A (en) * | 2014-07-21 | 2016-02-10 | 重庆科技学院 | One-click type magnetic energy integrated intelligent testing system |
| CN105319521B (en) * | 2014-07-21 | 2017-10-27 | 重庆科技学院 | One-touch magnetic property comprehensive intelligent test system |
| CN104122454B (en) * | 2014-07-23 | 2016-12-07 | 中国计量科学研究院 | A kind of soft magnetic materials loss measurement system and method |
| WO2017198167A1 (en) * | 2016-05-17 | 2017-11-23 | 深圳市智信精密仪器有限公司 | Magnetic field intensity detection set |
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Application publication date: 20110119 |