CN103558568A - Electrical steel sheet and magnetic property measuring device of combination structure of electrical steel sheets in different stress directions - Google Patents
Electrical steel sheet and magnetic property measuring device of combination structure of electrical steel sheets in different stress directions Download PDFInfo
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- CN103558568A CN103558568A CN201310568621.5A CN201310568621A CN103558568A CN 103558568 A CN103558568 A CN 103558568A CN 201310568621 A CN201310568621 A CN 201310568621A CN 103558568 A CN103558568 A CN 103558568A
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Abstract
The invention relates to an electrical steel sheet and a magnetic property measuring device of a combination structure of the electrical steel sheets in different stress directions. The magnetic property measuring device is mainly composed of a main magnetic circuit module, a pressure measuring module, a pressure loading module, a signal detection module and a supporting module, wherein the main magnetic circuit module is arranged on the supporting module, the pressure measuring module and the pressure loading module are arranged outside the main magnetic circuit module and above the main magnetic circuit module respectively, and the signal detection module is arranged in the middle of the main magnetic circuit module. According to the magnetic property measuring device, the magnetic property of the single electrical steel sheet can be measured in different two-dimensional stress directions, the magnetic property of the overlapped electrical steel sheets can also be measured in different stress directions, multiple purposes are achieved through the magnetic property measuring device, the structure of the device is simplified, and manufacturing cost is saved.
Description
Technical field
The present invention relates generally to the magnetic characteristic measurement mechanism under the different stress of a kind of electrical sheet, particularly relates to the magnetic characteristic measurement mechanism of the different stress directions of a kind of electrical sheet and unitized construction thereof.
Background technology
The electrical sheet result that its magnetic characteristic characterizes out under different effect of stress is different.What researcher was mainly studied at present is the magnetic characteristic of electrical sheet under standard conditions, has seldom considered the impact of different stress on electrical sheet magnetic characteristic.But electrical sheet all can be subject to the External Force Actings such as extruding in various degree or stretching in actual application.Such as real transformer, in process of production electrical sheet unshakable in one's determination has been carried out the processing such as binding, extruding, electric machine iron core electrical sheet has also carried out punching press processing etc.Study the different magnetic characteristics that different stress magnetic materials reflect the loss of explication de texte electrical equipment, temperature rise etc. are had to profound significance.Instantly, research electrical sheet magnetic characteristic under different directions External Force Acting seems particularly important.
Consider that at present research also belongs to the starting stage to different stress to electrical sheet magnetic characteristic measurement mechanism, research in this respect is all also in laboratory stage.Domesticly also substantially do not relate in this respect, only have the magnetic characteristic measurement mechanism of considering under single or the different stress of both direction abroad yet.Can measure the two-dimensional magnetic property under the different stress of monolithic electrical steel sheet, can measure again the magnetic characteristic under the different stress of lamination direction, also there is no such device at present.Apparatus of the present invention both can have been measured two-dimensional magnetic property under the different stress of monolithic electrical steel sheet, can measure again the magnetic characteristic under the different stress of multi-disc electrical sheet lamination direction, this device is innovated in structure, has realized multi-purpose machine, both simplify apparatus structure, also saved manufacturing cost.
Summary of the invention
Goal of the invention
The invention provides and both can measure two-dimensional magnetic property under the different stress of monolithic electrical steel sheet, can measure again the magnetic characteristic device under the different stress of multi-disc electrical sheet lamination direction.Its objective is that some shortcomings that overcome conventional art innovate in structure, realized multi-purpose machine, both simplified apparatus structure, also saved manufacturing cost.
technical scheme
The present invention is achieved through the following technical solutions:
The magnetic characteristic measurement mechanism of the different stress directions of a kind of electrical sheet and unitized construction thereof, it is characterized in that: mainly by main magnetic circuit module, pressure measuring module, pressure-loaded module, signal detection module, supporting module, formed, main magnetic circuit module is arranged on supporting module, the outside of main magnetic circuit module and top are provided with pressure measuring module and pressure-loaded module, and signal detection module is arranged on the middle part of main magnetic circuit module.
Main magnetic circuit module by two up and down vertical C sections yoke piece become, i.e. a C sections yoke and the 2nd C sections yoke, C sections yoke one end be can be movable removable iron yoke, the one C sections yoke one end is the first removable iron yoke, the 2nd C sections yoke one end is the second removable iron yoke, and removable iron yoke is folded and formed by upper and lower two duplicate low-loss crystal electrical sheets; The port of the 2nd C sections yoke is wound around the field coil on directions X, and the port of a C sections yoke is wound around the field coil in Y-direction; The first removable iron yoke is provided with two folders, and the first folder and the second folder are also provided with two folders on the second removable iron yoke, the 3rd folder and the 4th folder.
Pressure-loaded module comprises that pressure-loaded device, pressure or pulling force loader, pressure apply plate, pressure-loaded device is arranged on brace table top, the first pressure or pulling force loader are fixed on the second folder, the second pressure or pulling force loader are fixed on the 4th folder, and the first pressure applies plate, the second pressure and applies plate and the 3rd pressure and apply plate and be all arranged on brace table below.
Pressure measuring module mainly consists of pressometer, and the first pressometer and the second pressometer are arranged on support column; The 3rd pressometer is arranged on brace table.
Signal detection module is monolithic detection module or lamination detection module.
Monolithic detection module is placed in the middle of two C sections yokes and two removable iron yokes, by four coil winding, formed, wherein two inductive coils that are used for measuring magnetic flux density are directions X magneticflux testing coil and Y-direction magneticflux testing coil, and two other inductive coil that is used for measuring magnetic field intensity is directions X magnetic field intensity magnetic test coil and Y-direction magnetic field intensity magnetic test coil; Tested electrical sheet is placed on the indentation, there of two C sections yokes of main magnetic circuit module, the equidistant punching in tested electrical sheet central area has four circular holes, and directions X magneticflux testing coil is wrapped on tested electrical sheet through circular hole with Y-direction magneticflux testing coil is mutually vertical; Four center of circular holes below of being close to tested electrical sheet is placed with supporting plate, and directions X magnetic field intensity magnetic test coil and Y-direction magnetic field intensity magnetic test coil be vertical being wrapped on supporting plate mutually.
Lamination detection module is placed in the middle of two C sections yokes and two removable iron yokes, comprise support box, the outside of support box has been wound around double winding uniformly, the winding that is used for measuring magnetic flux density is that the winding that magneticflux testing coil and being used for is measured magnetic field intensity is magnetic field intensity magnetic test coil, and support box the inside is placed with electrical sheet lamination.
Supporting module comprises support member, support column, brace table, base, bracing frame and lifter; Four support columns, four support members are fixed on base, and bracing frame is fixed on four support columns, and brace table is fixed on four support column tops; Lifter is fixed on above base.
3, advantage and effect:
Beneficial effect of the present invention is as follows:
In main magnetic circuit device of the present invention, two magnetic circuits are separate, reduced by two magnetic circuits and influenced each other.
Iron yoke adopts movably core construction of C type, the advantage of this structure is: reduce material, cost-saving, reduce iron core weight, iron core only has with tested print and impressed pressure (pulling force) has located gap, reduced like this measuring error that machining precision is brought, also reduced the magnetic pressure producing due to seam and fallen.
This device can be measured the magnetic characteristic under the different stress of monolithic electrical steel sheet two dimension, can measure again the magnetic characteristic under the different stress of lamination direction, has realized multi-purpose machine, has simplified apparatus structure, has saved manufacturing cost.
accompanying drawing explanation:
Fig. 1 is one-piece construction schematic diagram of the present invention;
Fig. 2 is main magnetic circuit module diagram;
Fig. 3 is single sheet measurement main magnetic circuit side view;
Fig. 4 is magneticflux testing loop construction schematic diagram;
Fig. 5 is magnetic field intensity magnetic test coil structural representation;
Fig. 6 is that lamination is measured main magnetic circuit side view;
Fig. 7 is lamination detection module schematic diagram;
Fig. 8 is single sheet measurement system schematic;
Fig. 9 is lamination measuring system schematic diagram.
description of reference numerals:
1, the first removable iron yoke, 2, the second removable iron yoke, 3, the one C sections yoke, 4, the 2nd C sections yoke, 5, the first folder, 6, the second folder, 7, the 3rd folder, 8, the 4th folder, 9, the first pressometer, 10, lifter, 11, the 3rd pressometer 12, the first pressure or pulling force loader, 13, the second pressure or pulling force loader, 14, pressure-loaded device, 15, support column, 16, brace table, 17, support member, 18, field coil in Y-direction, 19, the first pressure applies plate, and 20, the second pressometer, 21, field coil on directions X, 22, field coil in Y-direction, 23, tested electrical sheet, 24, directions X magneticflux testing coil, 25, Y-direction magneticflux testing coil, 26, field coil on directions X, 27, the second pressure applies plate, and 28, magnetic field intensity magnetic test coil, 29, aperture, 30, supporting plate, 31, directions X magnetic field intensity magnetic test coil, 32, Y-direction magnetic field intensity magnetic test coil, 33, electrical sheet lamination, 34, magnetic field intensity magnetic test coil and magneticflux testing coil, 35, support box, 36, magneticflux testing coil, 37, magnetic field intensity magnetic test coil, 38, the 3rd pressure applies plate, 39, base, 40, bracing frame.
embodiment:
Below in conjunction with accompanying drawing, the present invention is described further:
The present invention is the magnetic characteristic measurement mechanism of a kind of electrical sheet and the different stress directions of unitized construction thereof, as shown in fig. 1: mainly by main magnetic circuit module, pressure measuring module, pressure-loaded module, signal detection module, supporting module, formed, main magnetic circuit module is arranged on supporting module, the outside of main magnetic circuit module and top are provided with pressure measuring module and pressure-loaded module, and signal detection module is arranged on the middle part of main magnetic circuit module.
Main magnetic circuit module by two up and down vertical C sections yoke piece become, two magnetic circuits are separate, reduced influencing each other of two magnetic circuits.C sections yoke one end can be movable, movable part iron yoke is folded and is formed by upper and lower two duplicate low-loss crystal electrical sheets, object is for clamping tested electrical sheet to it is applied to pulling force, and minimizing material, cost-saving, reduce iron core weight, iron core only has with tested print and impressed pressure (pulling force) has located gap, reduced like this measuring error that machining precision is brought, also reduced the magnetic pressure producing due to seam and fallen.Port at iron yoke is being wound around multiturn fine copper wire, is used for setting up main field; Two its materials of C sections yoke are all to be folded and formed by low-loss crystal orientation electrical sheet of the same race.
As shown in Figure 2, main magnetic circuit module by two up and down vertical C sections yoke piece become, i.e. a C sections yoke 3 and the 2nd C sections yoke 4, C sections yoke one end be can be movable removable iron yoke, the one C sections yoke 3 one end are first removable iron yokes 1, the 2nd C sections yoke 4 one end are second removable iron yokes 2, and removable iron yoke is folded and formed by upper and lower two duplicate low-loss crystal electrical sheets; The port that the port of the 2nd C sections yoke 4 is wound around field coil 21,26, the one C sections yokes 3 on directions X is wound around the field coil 18,22 in Y-direction; The first removable iron yoke 1 is provided with two folders, is also provided with two folders, the 3rd folder 7 and the 4th folder 8 on the first folder 5 and the removable iron yoke 2 of the second folder 6, the second.Main magnetic circuit module is fixed on base 39 by support member 17.
Pressure-loaded module comprises that pressure-loaded device 14, pressure or pulling force loader, pressure apply plate, pressure-loaded device 14 is arranged on brace table 16 tops, the first pressure or pulling force loader 12 are fixed on the second folder 6, the second pressure or pulling force loader 13 are fixed on the 4th folder 8, the first pressure applies plate 19, the second pressure and applies plate 27 and the 3rd pressure and apply plate 38 and be all arranged on brace table 16 belows, it is at the first pressure, to apply the opposite of plate 19 that the 3rd pressure applies plate 38, and the second pressure applies plate 27 and the first pressure, and to apply plate 19 adjacent.Pressure-loaded module mainly provides power source to make it drive iron yoke or miscellaneous part to exert pressure or pulling force to the electrical sheet of measuring by equipment such as motor or air compressor.
Pressure measuring module mainly consists of pressometer, and the first pressometer 9 and the second pressometer 20 are arranged on support column 15; The 3rd pressometer 11 is arranged on brace table 16, and pressometer Main Function is to measure the pressure size being carried on electrical sheet.
Signal detection module is that the different detection winding of two covers forms when measuring monolithic electrical steel sheet or lamination electrical sheet; Signal detection module is monolithic detection module or lamination detection module, and while detecting monolithic electrical steel sheet, signal detection module is monolithic detection module, and while detecting lamination electrical sheet, signal detection module is lamination detection module.
As shown in Fig. 3, Fig. 4 and Fig. 5, monolithic detection module is placed in the middle of two C sections yokes (a C sections yoke 3 and the 2nd C sections yoke 4) and two removable iron yokes (the first removable iron yoke 1 and the second removable iron yoke 2), by four coil winding, formed, wherein two inductive coils that are used for measuring magnetic flux density are directions X magneticflux testing coil 24 and Y-direction magneticflux testing coil 25, and two other inductive coil that is used for measuring magnetic field intensity is directions X magnetic field intensity magnetic test coil 31 and Y-direction magnetic field intensity magnetic test coil 32; Tested electrical sheet 23 is placed on the indentation, there of two C sections yokes of main magnetic circuit module, the tested electrical sheet 23 equidistant punchings in central area have four circular holes 29, and directions X magneticflux testing coil 24 is wrapped on tested electrical sheet 23 through circular hole 29 with Y-direction magneticflux testing coil 25 is mutually vertical; Four circular hole 29 central lower being close to tested electrical sheet 23 are placed with supporting plate 30, and directions X magnetic field intensity magnetic test coil 31 and Y-direction magnetic field intensity magnetic test coil 32 be vertical being wrapped on supporting plate 30 mutually.
As shown in Figure 6 and Figure 7, lamination detection module is placed in the middle of two C sections yokes (a C sections yoke 3 and the 2nd C sections yoke 4) and two removable iron yokes (the first removable iron yoke 1 and the second removable iron yoke 2), comprise support box 35, the outside of support box 35 has been wound around double winding uniformly, the winding that is used for measuring magnetic flux density is that the winding that magneticflux testing coil 36 and being used for is measured magnetic field intensity is magnetic field intensity magnetic test coil 37, and support box 35 the insides are placed with electrical sheet lamination 33.
Supporting module comprises support member 17, support column 15, brace table 16, base 39, bracing frame 40 and lifter 10; Four support columns 15, four support members 17 are fixed on base 39, and bracing frame 40 is fixed on four support columns 15, and brace table 16 is fixed on four support column 15 tops, and whole supporting module plays the effect of a support to firm its measurement mechanism; Lifter 10 is directly fixed on above base 39.
As shown in Figure 8 and Figure 9, the magnetic characteristic measurement mechanism of the different stress directions of this electrical sheet of the present invention and unitized construction thereof can carry out magnetic characteristic measurement to monolithic electrical steel sheet or lamination electrical sheet.
Measuring system is by computing machine, data acquisition module, low-pass filtering module, Isolation Amplifier Module, power amplifier module, isolation voltage changing module and above-mentioned magnetic characteristic measurement mechanism form, computing machine connection data acquisition module, data acquisition module connects Isolation Amplifier Module and low-pass filtering module, low-pass filtering module connects power amplifier module, power amplifier module connects isolation voltage changing module, isolation voltage changing module connects Isolation Amplifier Module by signal detection module, signal detection module connects main magnetic circuit module, main magnetic circuit module is measured the magnetic characteristic of tested electrical sheet by the pressure-loaded module and the pressure measuring module that arrange on it.
Signal detection module is that the different detection winding of two covers forms when measuring monolithic electrical steel sheet with electrical sheet lamination.
While measuring monolithic, by four coil winding, formed, wherein as two of Fig. 4, be used for measuring inductive coil directions X magneticflux testing coil 24 and the Y-direction magneticflux testing coil 25 of magnetic flux density, as two of Fig. 5, be used for measuring in addition inductive coil directions X magnetic field intensity magnetic test coil 31 and the Y-direction magnetic field intensity magnetic test coil 32 of magnetic field intensity.The equidistant punching in tested electrical sheet print central area has four small sircle holes as shown in Figure 4, with two single turn fine copper wire directions X magneticflux testing coils 24 and Y-direction magneticflux testing coil 25 are mutually vertical, through aperture, be wrapped on tested electrical sheet 23 respectively, be used for measuring the magnetic flux density of directions X and Y-direction; With a little plastic plate of square, with two multiturn fine copper wire directions X magnetic field intensity magnetic test coils 31 and Y-direction magnetic field intensity magnetic test coil 32 vertical being wrapped on supporting plate 30 mutually, be close to four center of circular hole belows of tested electrical sheet print and placed, be used for measuring the magnetic field intensity measurement of directions X and Y-direction.
While measuring lamination, as Fig. 7 has a support box 35 that independent rectangular parallelepiped is hollow, the outside of this plastic casing has been wound around double winding uniformly, a set of is for measuring the winding magneticflux testing coil 36 of magnetic flux density, a set of is in addition for measuring the winding magnetic field intensity detection coil 37 of magnetic field intensity, and plastic casing the inside is used for placing electrical sheet lamination 33.
Step while using apparatus of the present invention to measure magnetic characteristic under the different stress of electrical sheet is as follows:
1, under the different stress of monolithic electrical steel sheet, magnetic characteristic is measured:
(1) first as shown in Figure 3 tested electrical sheet 23 is put into measurement mechanism, regulate each folder 5,6,7 and 8 that electrical sheet is clamped, regulate pressure-loaded device 14, electrical sheet by the first pressure, applies plate 19 and the second pressure and applies plate 27 and load a downward pressure on electrical sheet, so that can not move horizontally when loading horizontal direction pulling force.First by pressure or pulling force loader (the first pressure or pulling force loader 12 and the second pressure or pulling force loader 13), on electrical sheet, add pressure or a pulling force that any direction is given, the size of loading force is measured automatically by the first pressometer 9 and the second pressometer 20.
(2) as shown in Figure 8, direction of arrow representation signal flow direction, computer program based on LabVIEW produces directions X and Y-direction two-way sine voltage signal, HF noise signal through data collecting card output in its signal of low pass filter filters out, through power amplifier, obtain larger excitation signal, through isolating transformer, power amplifier and measuring equipment are separated, excitation signal A is loaded in Fig. 2 on the field coil on directions X 21 and 26, excitation signal B is loaded on the field coil 18 and 22 in Y-direction, the magnetic field that the generation cycle changes in tested electrical sheet.
(3) by directions X magneticflux testing coil 24(coil F in Fig. 4) and Y-direction magneticflux testing coil 25(coil C) signal and Fig. 5 in directions X magnetic field intensity magnetic test coil 31(coil E) with Y-direction magnetic field intensity magnetic test coil 32(coil D) signal by isolated amplifier, amplify and then send data collecting card back to, magnetic flux density waveform is by comparing with standard signal, then to sending signal, regulate, until error reaches in 0.5% scope of setting.Then measure the magnetic field intensity waveform in this situation, so just obtain a hysteresis ring.
(4) by the amplitude size of LabVIEW software change field voltage, repeat above-mentioned (1)-(3) process, so just obtain Yi Ge hysteresis ring family; Therefore just obtained the magnetic characteristic of electrical sheet under this pressure (or pulling force).
(5) regulate pressure or pulling force loader (the first pressure or pulling force loader 12 and the second pressure or pulling force loader 13), apply a different pressure, repeat above-mentioned (1)-(4) process, just can obtain the magnetic characteristic of electrical sheet under different stress.In whole measuring process, excitation voltage loads from small to large gradually, until that print reaches the degree of depth is saturated.
2, under the different stress of lamination electrical sheet, magnetic characteristic is measured:
(1) first as shown in Figure 6 tested electrical sheet lamination 33 is put into measurement mechanism, regulate pressure-loaded device 14, by the first pressure, apply plate 19 and the 3rd pressure and apply plate 38 and load a downward pressure on electrical sheet, the size of loading force is measured automatically by the second pressometer 11.
(2) as shown in Figure 9, direction of arrow representation signal flow direction, computer program based on LabVIEW produces sine voltage signal, HF noise signal through data collecting card output in its signal of low pass filter filters out, through power amplifier, obtain larger excitation signal, power amplifier and measuring equipment are separated through isolating transformer, excitation signal G is loaded in Fig. 6 on the field coil on directions X 21 and 26, the magnetic field that the generation cycle changes in tested electrical sheet.
(3) by magneticflux testing coil 36(coil H in Fig. 6) and magnetic field intensity magnetic test coil 37(coil I) signal amplifies and then sent back to data collecting card by isolated amplifier, magnetic flux density waveform is by comparing with standard signal, then to sending signal, regulate, until error reaches in 0.5% scope of setting.Then measure the magnetic field intensity waveform in this situation, so just obtain a hysteresis ring.
(4) by the amplitude size of LabVIEW software change field voltage, repeat above-mentioned (1)-(3) process, so just obtain Yi Ge hysteresis ring family; Therefore just obtained the magnetic characteristic of electrical sheet under this pressure (or pulling force).
(5) regulate pressure-loaded device 14, apply a different pressure, repeat above-mentioned (1)-(4) process, just can obtain the magnetic characteristic of electrical sheet under different stress.In whole measuring process, excitation voltage loads from small to large gradually, until that print reaches the degree of depth is saturated.
The present invention can measure the magnetic characteristic under the different stress of monolithic electrical steel sheet two dimension, can measure again the magnetic characteristic under the different stress of lamination direction, has realized multi-purpose machine, has simplified apparatus structure, has saved manufacturing cost.
Claims (8)
1. the magnetic characteristic measurement mechanism of the different stress directions of an electrical sheet and unitized construction thereof, it is characterized in that: mainly by main magnetic circuit module, pressure measuring module, pressure-loaded module, signal detection module, supporting module, formed, main magnetic circuit module is arranged on supporting module, the outside of main magnetic circuit module and top are provided with pressure measuring module and pressure-loaded module, and signal detection module is arranged on the middle part of main magnetic circuit module.
2. the magnetic characteristic measurement mechanism of the different stress directions of electrical sheet according to claim 1 and unitized construction thereof, it is characterized in that: main magnetic circuit module by two up and down vertical C sections yoke piece become, i.e. a C sections yoke (3) and the 2nd C sections yoke (4), C sections yoke one end be can be movable removable iron yoke, the one C sections yoke (3) one end is the first removable iron yoke (1), the 2nd C sections yoke (4) one end is the second removable iron yoke (2), and removable iron yoke is folded and formed by upper and lower two duplicate low-loss crystal electrical sheets; The port of the 2nd C sections yoke (4) is wound around the field coil (21,26) on directions X, and the port of a C sections yoke (3) is wound around the field coil (18,22) in Y-direction; The first removable iron yoke (1) is provided with two folders, and the first folder (5) and the second folder (6) are also provided with two folders on the second removable iron yoke (2), the 3rd folder (7) and the 4th folder (8).
3. the magnetic characteristic measurement mechanism of the different stress directions of electrical sheet according to claim 1 and unitized construction thereof, it is characterized in that: pressure-loaded module comprises pressure-loaded device (14), pressure or pulling force loader, pressure applies plate, pressure-loaded device (14) is arranged on brace table (16) top, the first pressure or pulling force loader (12) are fixed on the second folder (6), the second pressure or pulling force loader (13) are fixed on the 4th folder (8), the first pressure applies plate (19), the second pressure applies plate (27) and the 3rd pressure and applies plate (38) and be all arranged on brace table (16) below.
4. the magnetic characteristic measurement mechanism of the different stress directions of electrical sheet according to claim 1 and unitized construction thereof, it is characterized in that: pressure measuring module mainly consists of pressometer, the first pressometer (9) and the second pressometer (20) are arranged on support column (15); The 3rd pressometer (11) is arranged on brace table (16).
5. the magnetic characteristic measurement mechanism of the different stress directions of electrical sheet according to claim 1 and unitized construction thereof, is characterized in that: signal detection module is monolithic detection module or lamination detection module.
6. the magnetic characteristic measurement mechanism of the different stress directions of electrical sheet according to claim 5 and unitized construction thereof, it is characterized in that: monolithic detection module is placed in the middle of two C sections yokes and two removable iron yokes, by four coil winding, formed, wherein two inductive coils that are used for measuring magnetic flux density are directions X magneticflux testing coil (24) and Y-direction magneticflux testing coil (25), two other are (31 years old, 32) inductive coil that is used for measuring magnetic field intensity is directions X magnetic field intensity magnetic test coil (31) and Y-direction magnetic field intensity magnetic test coil (32), tested electrical sheet (23) is placed on the indentation, there of two C sections yokes of main magnetic circuit module, the equidistant punching in tested electrical sheet (23) central area has four circular holes (29), and directions X magneticflux testing coil (24) is wrapped on tested electrical sheet (23) through circular hole (29) with Y-direction magneticflux testing coil (25) is mutually vertical, four circular holes (29) central lower of being close to tested electrical sheet (23) is placed with supporting plate (30), and directions X magnetic field intensity magnetic test coil (31) and Y-direction magnetic field intensity magnetic test coil (32) be vertical being wrapped on supporting plate (30) mutually.
7. the magnetic characteristic measurement mechanism of the different stress directions of electrical sheet according to claim 5 and unitized construction thereof, it is characterized in that: lamination detection module is placed in the middle of two C sections yokes and two removable iron yokes, comprise support box (35), the outside of support box (35) has been wound around double winding uniformly, the winding that is used for measuring magnetic flux density is that the winding that magneticflux testing coil (36) and being used for is measured magnetic field intensity is magnetic field intensity magnetic test coil (37), and support box (35) the inside is placed with electrical sheet lamination (33).
8. the magnetic characteristic measurement mechanism of the different stress directions of electrical sheet according to claim 1 and unitized construction thereof, it is characterized in that: supporting module comprises support member (17) support column (15), brace table (16), base (39), bracing frame (40) and lifter (10); It is upper that four support columns (15), four support members (17) are fixed on base (39), and it is upper that bracing frame (40) is fixed on four support columns (15), and brace table (16) is fixed on four support columns (15) top; Lifter (10) is fixed on base (39) above.
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2013
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