CN111208457A - Novel magnetostriction measurement method and device - Google Patents
Novel magnetostriction measurement method and device Download PDFInfo
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- CN111208457A CN111208457A CN201911313323.5A CN201911313323A CN111208457A CN 111208457 A CN111208457 A CN 111208457A CN 201911313323 A CN201911313323 A CN 201911313323A CN 111208457 A CN111208457 A CN 111208457A
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- 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
- G01R33/18—Measuring magnetostrictive properties
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Abstract
The invention discloses a novel magnetostriction measurement method and a novel magnetostriction measurement device, and relates to a novel design for measuring the magnetostriction of an electrical steel sheet based on an electromagnetic principle method, which comprises the following steps: the structure design is that two symmetrical magnets wound with a certain number of turns are placed, a test electrical steel sheet is placed in the magnets, two closed magnetic circuits which are independent up and down are formed, and simultaneously, the internal magnetic field of the test electrical steel sheet is ensured to be an approximately uniform magnetic field so as to uniformly magnetize the steel sheet; the control method adopts 220V alternating current to be respectively input into an upper coil and a lower coil and adjust the current direction and the magnitude of the two coils, so that two symmetrical magnets become consistent and synchronous mutually exclusive homonymous magnetic poles, and the physical stress balance (electromagnetic fixation) and the accurate measurement of the free magnetostriction quantity along the rolling direction of a centered steel sheet are realized. The invention can rapidly measure and record the tiny magnetostriction quantity of the electrical steel sheet, improves the test accuracy and reliability, is simple and easy to realize, and is suitable for practical industrial application.
Description
Technical Field
The technical scheme of the invention relates to a novel design for accurately measuring the magnetostriction of an electrical steel sheet based on an electromagnetic principle method, in particular to a method for accurately measuring the magnetostriction of the electrical steel sheet along the rolling direction without being influenced by external force by controlling symmetrical electromagnetic coils and magnets to ensure that the electrical steel sheet in the electromagnetic coils is balanced in physical stress.
Background
Electrical steel sheets are widely applied to the field of electrical engineering, such as iron core parts of power transformers, motors and the like, and are the most critical parts directly influencing the electrical performance of electrical equipment. One of the effective ways to improve the working performance and the operating efficiency of electrical equipment such as power transformers and motors and reduce vibration noise is to weaken the magnetostriction of the electrical equipment, and the accurate measurement of the magnetostriction amount of the electrical steel is the primary task and the important task, which is also the leading edge and hot spot problem in the international electrical field. CN 108845278A discloses a device and a method for measuring giant magnetostrictive materials, which comprises a magnet yoke, an upper pole, a lower pole, an upper pole head, a lower pole head, a first pressure rod and a second pressure rod, wherein one end of the first pressure rod and one end of the second pressure rod are connected through a connecting rod, and the other end of the first pressure rod and the other end of the second pressure rod sequentially penetrate through the magnet yoke and the upper pole; and meanwhile, the connecting rod is connected with the cylinder, so that the first pressure rod and the second pressure rod can move up and down under the driving of the cylinder. Therefore, the stress requirement in the measuring process is met under the condition of ensuring that the uniformity of the magnetic field is not influenced, and the measurement under different stresses is realized. However, the device has a complex structure, and the motion control of the pressure rod in the cylinder is not easy to operate. CN 207263103U discloses a magnetostrictive measuring instrument in the technical field of measuring devices, which comprises a housing and a control box, wherein an output protection tube and a receiving protection tube are respectively connected to the left and right walls of the inner cavity of the housing, the inner cavity of the output protection tube is connected with an output waveguide wire and output wires at two ends, the inner cavity of the receiving protection tube is connected with a receiving waveguide wire and receiving wires at two ends, and the bottom of the output protection tube is connected with a sound wave radiation surface. Therefore, the electric signal can be converted into the sound wave vibration signal by utilizing the magnetic stretching effect of the magnetostrictive material, and then the sound wave vibration signal is radiated by contacting another object and is received by the sound wave receiving device and is converted into the electric signal to be transmitted to the display screen so as to determine the distance between the two objects. The magnetostrictive measurement method and device are realized by mechanical or motion control, and simultaneously, a large amount of complex device designs and the like are needed, so that the magnetostrictive measurement method and device have the defects of mainly increasing industrial cost, needing complicated test procedures, being difficult to operate and the like.
Therefore, based on the rapid and accurate purpose and the electromagnetic principle method, the innovative design of the device for measuring the magnetostriction of the electrical steel sheet becomes an important research topic and has important theoretical significance and practical application value.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: on the premise of not increasing industrial cost, rapidness and accuracy, the device for measuring the magnetostriction of the electric steel sheet is innovatively designed through simple physical method control and operation, the accuracy and the reliability of the magnetostriction measurement result are improved, and the device is suitable for practical industrial application.
The technical scheme adopted by the invention for solving the technical problem is as follows: a novel magnetostriction measurement method and a novel magnetostriction measurement device relate to a novel design for measuring the magnetostriction of an electrical steel sheet based on an electromagnetic principle method, and the novel design comprises the following steps: in the aspect of structural design, two symmetrical same magnets are placed, each magnet is wound with a coil with a certain number of turns, and a test electrical steel sheet is placed in the middle to form two vertically independent closed magnetic circuits, so that the magnetic field in the test electrical steel sheet is approximately a uniform magnetic field and the electrical steel sheet can be uniformly magnetized; for the control method, 220V alternating current is respectively input into an upper electrified coil and a lower electrified coil, the current inflow and outflow directions and the current magnitudes in the two electrified coils are respectively adjusted, so that two symmetrical magnets generate consistent and synchronous mutually exclusive homonymous magnetic poles, and the electrical steel sheets in the two symmetrical magnets are subjected to physical stress balance, namely electromagnetic fixation, so that the accurate measurement of the free magnetostriction quantity along the rolling direction is realized without being fixed by mechanical external force; considering the self gravity of the electrical steel sheet, the intensity of the magnetic field generated by the magnet to be adjusted is larger; meanwhile, two ends of the electrical steel sheet can be provided with a high-precision laser micro-displacement tester in an auxiliary mode, so that the micro magnetostriction quantity can be identified and measured.
The novel magnetostriction measurement method and the novel magnetostriction measurement device are structurally designed as shown in the attached drawing 1, two symmetrical same magnets are placed, each magnet is wound with a coil with a certain number of turns, a test electrical steel sheet is placed in the middle of each magnet, so that the test electrical steel sheet forms two vertically independent closed magnetic circuits, the magnetic field in the test electrical steel sheet is approximately uniform and can be uniformly magnetized.
The control method is shown in figure 2, 220V alternating current is respectively input into an upper electrified coil and a lower electrified coil, consistent and synchronous mutually exclusive magnetic poles are generated by two symmetrical magnets by respectively adjusting the current inflow and outflow directions and the current magnitudes in the coils, and the electrical steel sheets in the coils are enabled to achieve physical stress balance, namely electromagnetically fixed, so that the free magnetostriction quantity of the coils along the rolling direction can be accurately measured without being fixed by mechanical external force; considering the self-gravity of the electrical steel sheet, the intensity of the magnetic field generated by the magnet to be adjusted is larger.
According to the novel magnetostriction measurement method and device, the two ends of the electrical steel sheet can be provided with the high-precision laser micro-displacement tester in an auxiliary mode, so that the micro magnetostriction quantity can be identified and measured.
The invention has the advantages that ① does not increase industrial cost and is externally connected with other media basically, ② carries out rapid measurement and recording on the tiny magnetostriction of the electrical steel sheet through simple operation, improves the test accuracy and reliability of the magnetostriction quantity, and is suitable for practical industrial application.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural design diagram of a novel magnetostrictive measurement method and device according to the present invention.
Fig. 2 is a flowchart illustrating steps of a method for controlling a novel magnetostrictive measurement method and apparatus according to the present invention.
Detailed Description
The embodiment shown in fig. 1 shows that the novel magnetostrictive measurement method and device of the present invention has the structural design that: the two magnets are identical ferromagnets which can be demagnetized and are symmetrically arranged up and down, each magnet is wound with a coil with a certain number of turns, the middle of each magnet is provided with a test electrical steel sheet, so that the test electrical steel sheet can form two vertically independent closed magnetic circuits in a power-on working state, and the space reserved for the test electrical steel sheet between the upper magnet and the lower magnet can be properly close to ensure that the magnetic field in the upper magnet and the lower magnet is similar to a uniform magnetic field and can uniformly magnetize the electrical steel sheet.
The embodiment shown in fig. 2 shows that the steps and the flow of the control method of the novel magnetostrictive measurement method and device of the invention are as follows: the current inflow and outflow directions of the upper coil and the lower coil are judged in advance based on the theory of electromagnetism, the two symmetrical magnets can generate consistent and synchronous mutually exclusive magnetic poles, then coil winding and current loading of 220V alternating current are carried out, at the moment, the magnitude of the current in the upper coil and the lower coil is respectively adjusted, so that the electrical steel sheet in the upper coil and the lower coil achieves physical stress balance, namely electromagnetic fixation, and the accurate measurement of the free magnetostriction quantity of the electrical steel sheet along the rolling direction under the condition of not being fixed by mechanical external force is realized; considering the self gravity of the electrical steel sheet, the intensity of the magnetic field generated by the magnet to be adjusted is larger; meanwhile, two ends of the electrical steel sheet can be provided with a high-precision laser micro-displacement tester in an auxiliary mode, so that the micro magnetostriction quantity can be identified and measured.
Claims (3)
1. A novel magnetostriction measurement method and a novel magnetostriction measurement device are characterized in that a novel design for measuring the magnetostriction of an electrical steel sheet based on an electromagnetic principle method is provided, and the method comprises the following steps: in the aspect of structural design, two symmetrical same magnets are placed, each magnet is wound with a coil with a certain number of turns, and a test electrical steel sheet is placed in the middle to form two vertically independent closed magnetic circuits, so that the magnetic field in the test electrical steel sheet is approximately a uniform magnetic field and the electrical steel sheet can be uniformly magnetized; for the control method, 220V alternating current is respectively input into an upper electrified coil and a lower electrified coil, the current inflow and outflow directions and the current magnitudes in the two electrified coils are respectively adjusted, so that two symmetrical magnets generate consistent and synchronous mutually exclusive homonymous magnetic poles, and the electrical steel sheets in the two symmetrical magnets are subjected to physical stress balance, namely electromagnetic fixation, so that the accurate measurement of the free magnetostriction quantity along the rolling direction is realized without being fixed by mechanical external force; considering the self gravity of the electrical steel sheet, the intensity of the magnetic field generated by the magnet to be adjusted is larger; meanwhile, two ends of the electrical steel sheet can be provided with a high-precision laser micro-displacement tester in an auxiliary mode, so that the micro magnetostriction quantity can be identified and measured.
2. The new magnetostriction measurement method and device as claimed in claim 1, further characterized in that said structure is designed such that two magnets are identical ferromagnets capable of demagnetization and are placed symmetrically up and down, each magnet is wound with a coil with a certain number of turns, the test electrical steel sheet is placed in the middle, so that it can form two closed magnetic circuits independent up and down in the energized working state, the space reserved for the test electrical steel sheet between the upper and lower magnets can be properly close to ensure that the magnetic field therein is approximately uniform and the electrical steel sheet can be uniformly magnetized.
3. The novel magnetostriction measurement method and device as claimed in claim 1, further characterized in that the control method comprises the steps and the flow of predetermining the current inflow and outflow directions of the upper and lower coils based on the theory of electromagnetism to ensure that the two symmetrical magnets can generate consistent and synchronous mutually exclusive like magnetic poles, then performing coil winding and 220V alternating current loading, and at the moment, adjusting the current magnitude of the upper and lower coils respectively to achieve physical stress balance, namely electromagnetic fixation, so as to achieve accurate measurement of free magnetostriction along the rolling direction without mechanical external force fixation.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114114107A (en) * | 2022-01-26 | 2022-03-01 | 山东理工大学 | Magnetostrictive micro deformation measurement experimental device |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63317734A (en) * | 1987-06-22 | 1988-12-26 | Kubota Ltd | Magnetostriction type torque sensor |
| CN101213430A (en) * | 2005-07-01 | 2008-07-02 | 雅马哈发动机株式会社 | Magneto-striction type load sensor and mobile body having the same |
| CN101244698A (en) * | 2007-02-14 | 2008-08-20 | 刘新广 | Magnetic suspension electric vehicle |
| CN103145087A (en) * | 2013-03-14 | 2013-06-12 | 南昌工程学院 | Magnetostrictive composite cantilever beam driven by Terfenol-D sheets |
| CN103713267A (en) * | 2013-12-30 | 2014-04-09 | 中国计量科学研究院 | Continuous iron-loss measurement wire frame for electrical steel |
| CN104122516A (en) * | 2014-07-23 | 2014-10-29 | 中国计量科学研究院 | Electrical sheet steel magnetostriction measurement system and method |
| CN105281465A (en) * | 2015-11-03 | 2016-01-27 | 西南交通大学 | Variable-electrode-distance long primary bilateral linear induction motor |
| CN107576425A (en) * | 2017-08-25 | 2018-01-12 | 北京科技大学 | A kind of device and method of non-contact measurement ferromagnetic material stress |
| CN107911002A (en) * | 2017-10-31 | 2018-04-13 | 西安交通大学 | A kind of bistable electromagnetic steering engine and start method based on E shape iron yokes |
| CN110068722A (en) * | 2019-04-29 | 2019-07-30 | 烟台工程职业技术学院(烟台市技师学院) | A kind of dual coil current sensor |
| CN110375656A (en) * | 2019-07-09 | 2019-10-25 | 武汉钢铁有限公司 | The measuring device and measuring method of magnetostriction coefficient |
-
2019
- 2019-12-18 CN CN201911313323.5A patent/CN111208457B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63317734A (en) * | 1987-06-22 | 1988-12-26 | Kubota Ltd | Magnetostriction type torque sensor |
| CN101213430A (en) * | 2005-07-01 | 2008-07-02 | 雅马哈发动机株式会社 | Magneto-striction type load sensor and mobile body having the same |
| CN101244698A (en) * | 2007-02-14 | 2008-08-20 | 刘新广 | Magnetic suspension electric vehicle |
| CN103145087A (en) * | 2013-03-14 | 2013-06-12 | 南昌工程学院 | Magnetostrictive composite cantilever beam driven by Terfenol-D sheets |
| CN103713267A (en) * | 2013-12-30 | 2014-04-09 | 中国计量科学研究院 | Continuous iron-loss measurement wire frame for electrical steel |
| CN104122516A (en) * | 2014-07-23 | 2014-10-29 | 中国计量科学研究院 | Electrical sheet steel magnetostriction measurement system and method |
| CN105281465A (en) * | 2015-11-03 | 2016-01-27 | 西南交通大学 | Variable-electrode-distance long primary bilateral linear induction motor |
| CN107576425A (en) * | 2017-08-25 | 2018-01-12 | 北京科技大学 | A kind of device and method of non-contact measurement ferromagnetic material stress |
| CN107911002A (en) * | 2017-10-31 | 2018-04-13 | 西安交通大学 | A kind of bistable electromagnetic steering engine and start method based on E shape iron yokes |
| CN110068722A (en) * | 2019-04-29 | 2019-07-30 | 烟台工程职业技术学院(烟台市技师学院) | A kind of dual coil current sensor |
| CN110375656A (en) * | 2019-07-09 | 2019-10-25 | 武汉钢铁有限公司 | The measuring device and measuring method of magnetostriction coefficient |
Non-Patent Citations (1)
| Title |
|---|
| 曲宝军，等: "外施励磁场作用下电工钢片的趋肤效应和涡流损耗", 《MACHINE TOOL & HYDRAULICS》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114114107A (en) * | 2022-01-26 | 2022-03-01 | 山东理工大学 | Magnetostrictive micro deformation measurement experimental device |
| CN114114107B (en) * | 2022-01-26 | 2022-04-15 | 山东理工大学 | Magnetostrictive micro deformation measurement experimental device |
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