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CN1928582B - Silicon steel magnetic property detection used ferrometer - Google Patents

Silicon steel magnetic property detection used ferrometer Download PDF

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Publication number
CN1928582B
CN1928582B CN2006101506459A CN200610150645A CN1928582B CN 1928582 B CN1928582 B CN 1928582B CN 2006101506459 A CN2006101506459 A CN 2006101506459A CN 200610150645 A CN200610150645 A CN 200610150645A CN 1928582 B CN1928582 B CN 1928582B
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China
Prior art keywords
yoke
permeameter
coil
draw
drive motor
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CN2006101506459A
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CN1928582A (en
Inventor
方岱宁
饶国光
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BEIJING SAIDI ELECTROMECHANICAL NEWTECHNOLOGY DEVELOPMENT Co Ltd
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BEIJING SAIDI ELECTROMECHANICAL NEWTECHNOLOGY DEVELOPMENT Co Ltd
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Abstract

The disclosed permeameter for silicon steel magnetic performance comprises: an upper/lower yoke with one fixed and another connected with a drive motor, some coils included excitation coil and measuring coil, an excitation power, and a pressure sensor. Compared with Epstein square coil, this invention can save sample material greatly, reduces measurement error, and can bring much economic benefit.

Description

Silicon steel magnetic property detection used ferrometer
Technical field
The present invention relates to the Magnetic Measurement field, be specifically related to a kind of silicon steel magnetic property detection used ferrometer.
Background technology
The parameter of magnetic characteristic of siliconized plate mainly contains parameters such as magnetic flux density, magnetic permeability, coercive force, iron loss, utilizes epstein frame or permeameter to measure as excitation mechanism usually.Since the sample making complexity of epstein frame, and measure the cost height, substituted by permeameter gradually.
The comprising of permeameter in the prior art: go up U type yoke, following U type yoke, coil and skeleton, wherein coil comprises field coil and measures coil, coil is wound on the skeleton.When magnetic characteristic was measured, sample to be tested was positioned between the upper and lower U type yoke, and passes equally distributed coil, and field power supply is powered to field coil, by measuring parameters such as the magnetic characteristic that can obtain sample to be tested and iron loss to measuring coil.
The magnetic characteristic of monolithic silicon steel is measured in the prior art, is that sample to be tested is inserted coil, and the upper and lower U type of manual closing yoke is measured then; After measuring end, by carrying out the measurement of next sample behind the manual taking-up sample to be tested.This manual measuring process not only bothers, influences efficiency of measurement, but also there are a lot of defectives, such as: for the error that reduces to measure, magnetic characteristic requires upper and lower U type yoke closure in measuring, and compress forming closed magnetic circuit with sample to be tested, and the pressure that requires to be added on the sample to be tested is between 100~200 newton.If above-mentioned pressure is too little, can cause between the yoke closure not tight; Pressure is too big, and then the deformation of sample is excessive, and excessive pressure can damage permeameter.Usually manually-operated is difficult to guarantee that the size of above-mentioned force value is in suitable scope.Simultaneously, when measuring end, the operation of taking out sample to be tested is also difficult relatively.
Summary of the invention
The object of the present invention is to provide a kind of silicon steel magnetic property detection used ferrometer, in magnetic characteristic is measured, can control the degree of pressure of the closure between upper and lower U type yoke and the sample to be tested automatically.
Based on above purpose, a kind of permeameter provided by the invention, comprise upper magnet yoke, lower yoke, coil, field power supply, wherein, coil comprises field coil and measures coil that field power supply is the field coil power supply, this permeameter also comprises pressure transducer and drive motor, wherein, described upper magnet yoke links to each other with drive motor by pressure transducer with a yoke in the lower yoke, and another yoke is fixed;
Pressure transducer is used to gather the pressure data on it, and this pressure data is reached drive motor;
Drive motor is used for controlling a described yoke and moving to described another yoke after sample to be tested inserts coil, makes that two yokes are closed and compresses sample to be tested; Gather described pressure data, when pressure arrives predefined thresholding, stop to move of described yoke; When measuring end, control a described yoke away from another yoke, make two yokes separately.
Permeameter provided by the invention, also comprise a computing machine that is provided with modulus, digital-to-analog conversion card, this computing machine links to each other with drive motor, field power supply and measurement coil respectively, is used to start drive motor, the power supply of control field power supply, and gather the measurement data of measuring coil.
Permeameter provided by the invention, described drive motor specifically comprises: driving shaft, stator and rotor, wherein an end of driving shaft links to each other with pressure transducer, be provided with the screw thread that is used between rotor and the driving shaft, when rotor rotation, on the driving axial or move downward, drive the motion of pressure transducer and yoke.
Permeameter provided by the invention also comprises supporting plate and pusher arm, and wherein supporting plate links to each other with lower yoke, and pusher arm places on the supporting plate, and the sample to be tested sample can be released coil.
Permeameter provided by the invention, also comprise stone dead wire, draw-gear, catch bar, wherein catch bar links to each other with pusher arm, one end of stone dead wire is fixed, the other end passes catch bar and is connected to draw-gear, draw-gear is used to draw stone dead wire, makes that driving pusher arm when stone dead wire is tightened releases sample to be tested.
Permeameter provided by the invention also comprises spring, and this spring housing is on catch bar, and this spring is compressed when draw-gear traction stone dead wire, resile shape and make pusher arm and stone dead wire reset of this spring when draw-gear stops to draw.
Permeameter provided by the invention, draw-gear further links to each other with computing machine, is used for the work by the computer control draw-gear.
Permeameter provided by the invention, described drive motor are motor able to programme
By the above as can be known, permeameter provided by the invention, by the rotation of drive motor, auto-closing and open yoke under the control of computing machine, and guarantee suitable force value between yoke and the sample to have reduced measuring error; Simultaneously, permeameter of the present invention can take out sample to be tested easily when measuring end, further improved the automaticity of measuring.Compare with epstein frame, this permeameter can be saved a large amount of samples to be tested, cuts the waste; This permeameter has been realized the measurement robotization simultaneously, saves manpower, has reduced measuring error simultaneously; This magnetic conductance is counted single piece of silicon steel detection technique and has been played strong impetus, thereby efficient and accuracy that silicon steel is detected upgrade to a new height, and production, utilization and the international foreign trade of silicon steel played great facilitation.
Description of drawings
Fig. 1 is the structural representation of permeameter of the present invention;
Fig. 2 is the structural representation of another embodiment of permeameter of the present invention;
Fig. 3 is the measurement flow process signal of permeameter among the present invention;
Fig. 4 is for having increased the structural representation of the permeameter of sample withdrawing device among the present invention;
Fig. 5 is for driving the structural representation of the permeameter of pusher arm work by stone dead wire among the present invention;
Fig. 6 is the structural representation of the most preferred embodiment of permeameter of the present invention;
Fig. 7 is the measurement flow process signal of the permeameter of most preferred embodiment of the present invention.
Embodiment
Permeameter among the present invention by moving of U type yoke under the drive motor control, is gathered the pressure data between the upper and lower yoke simultaneously, thereby has been guaranteed pressure size suitable between yoke.Below in conjunction with accompanying drawing and specific embodiment the present invention is done detailed explanation.
Fig. 1 is the structural representation of permeameter of the present invention, as shown in Figure 1, comprises in this permeameter: go up U type yoke 10, following U type yoke 11, coil 12, skeleton 14, guide pole 28, backing plate 20, pressure transducer 21, connector 22, drive motor 24, field power supply 25, and computing machine 26.Wherein, coil 12 comprises field coil 120 and measures coil 121 that computing machine 26 comprises a modulus, digital-to-analogue (A/D, D/A) transition card 260.
Following U type yoke 11 is fixed on the backing plate 20; Backing plate 20 belows are provided with a pressure transducer 21, are used to gather pressure data, and the data that collect are sent to drive motor 24; Drive motor 24 is used to move up or down down U type yoke 11, thereby makes the closed or separation of upper and lower U type yoke; Guide pole 28 is used to control down the precision of U type yoke 11 displacements; Field power supply 25 links to each other with computing machine 26, under the control of computing machine field coil 120 is powered; Measure coil 121 and link to each other with A/D, D/A transition card 260, the data that produce in the measurement are handled by computing machine 26 after analog to digital conversion.Connector 22 is used to connect pressure transducer 21 and drive motor 24.During measurement, insert in the coil sample to be tested 13 and closed upper and lower U type yoke, compress sample to be tested 13, form closed magnetic circuit.
Be example with drive motor concrete among Fig. 2 24 below, illustrate how to move down U type yoke 11.As shown in Figure 2, this drive motor 24 comprises rotor 240, stator 241 and driving shaft 23.Driving shaft 23 1 ends are fixedlyed connected with backing plate 20 by pressure transducer 21, on rotor 240 and driving shaft 23, be respectively arranged with the screw thread that is used, when drive motor 24 rotates at its rotor 240, because driving shaft 23 does not rotate, thereby drive driving shaft 23 is done rectilinear motion up or down, and then the control rising or the decline of U type yoke 11 down.The present invention preferably adopts motor able to programme, sets in advance driver, realizes work automatically by computing machine 26 controls.
Above-mentioned computing machine 26 can be a micro-computer processing system, also can be other arithmetic system with data processing function.The yoke mobile device of being made up of parts 20~24 is not limited to schematic structure, also can be to control other device that yoke moves.
During measurement, field power supply 25 to field coil 120 power supplies, is measured the data that collect on the coil 121 and is delivered to A/D, D/A transition card 260 under the control of computing machine 26, is sent to computing machine 26 after analog to digital conversion, is handled by computing machine.In drive motor 24 according under the own wt of parts such as U type yoke and expection be applied to force value on the sample to be tested, set a pressure door limit value, make that the pressure that is applied on the sample to be tested is between 100~200 newton when the pressure that collects on the pressure transducer arrives this thresholding.Therefore, can control the degree of pressure of the closure of upper and lower U type yoke by the force value that pressure transducer collects.Fig. 3 is the measurement schematic flow sheet of above-mentioned permeameter, and this flow process may further comprise the steps:
Step 30 before the measurement, is inserted coil with sample to be tested;
Step 31, computing machine sends signal to drive motor, and the controlling and driving motor rotates, and then drives driving shaft and move upward, and makes upper and lower U type yoke closure;
Step 32, drive motor is collected the force value that pressure transducer is passed back, and when force value arrived predefined threshold value, drive motor stopped the rotation of its rotor;
Step 33, computing machine sends signal to field power supply, and the control field power supply provides required power supply for the magnetic characteristic measurement, and the data on the coil are measured in computer acquisition, and parameter of magnetic characteristic is measured;
After step 34, magnetic characteristic were measured and finished, computing machine sent signal to drive motor, the rotor counter-rotation of controlling and driving motor drives driving shaft and moves downward, and makes upper and lower U type yoke separate, instantly after U type yoke moved one section predetermined distance, drive motor stopped the rotation of its rotor.
By above-mentioned flow process, drive motor can be under the control of computing machine, start rotor forward or counter-rotation, and when force value arrival thresholding or after U type yoke moves certain distance down, drive motor stops the rotation of rotor, thereby saves manually-operated, has realized automatic control, and make the degree of pressure of the closure between upper and lower U type yoke reach predetermined requirement, guaranteed that precision and the permeameter measured can not be damaged.
The embodiment that more than provides is the fixing U type yoke that goes up, and carries out magnetic characteristic by the mode of U type yoke under moving and measures.Obviously, the present invention can also adopt fixing U type yoke down, moves the mode of U type yoke by similar method.This mode and the foregoing description there is no any essential distinction, should be included within protection scope of the present invention.
In order to further facilitate measurement, the present invention has also increased the sample withdrawing device for permeameter, is used for taking out easily when measuring end sample to be tested.Fig. 4 is the synoptic diagram that has increased the permeameter of sample withdrawing device, and as shown in Figure 4, sample withdrawing device 27 comprises: supporting plate 270 and pusher arm 271.Wherein supporting plate 270 links to each other with following U type yoke 11, and pusher arm 271 places on the supporting plate 270, pusher arm 271 can under the effect of external force on supporting plate 270 level move right, and can promote sample to be tested and shift out coil.
Above-mentioned pusher arm can be by promoting manually, also can be to promote by other mechanical hook-up, illustrates the sample withdrawing device with stone dead wire below.Fig. 5 is the structural representation that drives the permeameter of pusher arm work by stone dead wire, has further comprised among Fig. 5:
Stone dead wire 272 is used for driving catch bar 274 and moves horizontally to the right when tightening;
Point of fixity 273 is positioned on the external frame of permeameter, is used for the upper end of stone dead wire is fixed;
Catch bar 274, stone dead wire 272 passes catch bar 274, and under the pressure that stone dead wire 272 is tightened, catch bar 274 moves horizontally to the right;
Spring 275 is enclosed within on the catch bar 274, and when catch bar 274 moved horizontally to the right under external force, this spring stress was compressed; When above-mentioned external force is cancelled, this spring shape that resiles, thus catch bar 274 and stone dead wire 272 are resetted;
Baffle plate 276 be fixed on the supporting plate 270, and the right-hand member of spring 275 is fixed on the left surface of this baffle plate 276;
Draw-gear 277 is used to draw the other end of stone dead wire 272, thereby tightens stone dead wire 272.
When measuring end, by draw-gear 277 quick traction stone dead wires 272, make stone dead wire tighten, promote catch bar 274 and move horizontally to the right, the sample to be tested in the coil is released, thereby realized the mechanical automation that sample to be tested takes out.
At last, in conjunction with the said sample withdrawing device, provide the most preferred embodiment of permeameter of the present invention and the measurement schematic flow sheet of permeameter.Fig. 6 is the structural representation of the most preferred embodiment of permeameter of the present invention, as shown in Figure 6, further draw-gear 277 is linked to each other with computing machine 26, by the work of computing machine 26 control draw-gears.Fig. 7 is the measurement schematic flow sheet of this permeameter, and this flow process further comprises after the step 34 of flow process shown in Figure 3:
Step 35, computing machine sends signal to draw-gear, and the control draw-gear starts, the traction stone dead wire, thus tighten stone dead wire, promote pusher arm and in coil, move horizontally a preset distance, release sample to be tested, spring is compressed simultaneously;
Step 36, behind a preset distance, computing machine stops the drawing-in motion of draw-gear at draw-gear traction stone dead wire, and the elastic force that produces when resiling shape by spring resets pusher arm and stone dead wire.
In the above-mentioned most preferred embodiment, the upper end of stone dead wire is fixed, and the lower end can be affected by draw-gear.Obviously, also can pass through the fixedly lower end of stone dead wire, bring on the traction stone dead wire and realize that above-mentioned sample takes out function.
In sum, permeameter provided by the invention is compared with epstein frame, can save a large amount of samples to be tested, cuts the waste; This permeameter can be controlled the closed and closed degree of pressure of yoke automatically, and has realized the robotization of measuring, and has reduced measuring error; This magnetic conductance is counted single piece of silicon steel detection technique and has been played strong impetus, thereby efficient and accuracy that silicon steel is detected upgrade to a new height, and production, utilization and the international foreign trade of silicon steel played great facilitation.
Permeameter of the present invention and measurement flow process, be not restricted to listed utilization in instructions and the embodiment, for those skilled in the art, can easily realize additional advantage and make amendment, therefore under the situation of the spirit and scope of the universal that does not deviate from claim and equivalency range and limited, the examples shown that the present invention is not limited to specific details, representational equipment and illustrates here and describe.

Claims (7)

1. permeameter, comprise upper magnet yoke, lower yoke, coil, field power supply, wherein, coil comprises field coil and measures coil that field power supply is the field coil power supply, it is characterized in that, this permeameter also comprises pressure transducer and drive motor, wherein, described upper magnet yoke links to each other with drive motor by pressure transducer with a yoke in the lower yoke, and another yoke is fixed;
Pressure transducer is used to gather the pressure data on it, and this pressure data is reached drive motor; Drive motor is used for controlling a described yoke and moving to described another yoke after sample to be tested inserts coil, makes that two yokes are closed and compresses sample to be tested; Gather described pressure data, when pressure arrives predefined thresholding, stop to move of described yoke; When measuring end, control a described yoke away from another yoke, make two yokes separately;
Wherein said permeameter, also comprise a computing machine that is provided with modulus, digital-to-analog conversion card, this computing machine links to each other with drive motor, field power supply and measurement coil respectively, is used to start drive motor, the power supply of control field power supply, and gather the measurement data of measuring coil.
2. permeameter as claimed in claim 1, it is characterized in that, described drive motor specifically comprises: driving shaft, stator and rotor, wherein an end of driving shaft links to each other with pressure transducer, be provided with the screw thread that is used between rotor and the driving shaft, when rotor rotation, on the driving axial or move downward, drive the motion of pressure transducer and yoke.
3. permeameter as claimed in claim 1 is characterized in that also comprising supporting plate and pusher arm, and wherein supporting plate links to each other with lower yoke, and pusher arm places on the supporting plate, and the sample to be tested sample can be released coil.
4. permeameter as claimed in claim 3, it is characterized in that also comprising stone dead wire, draw-gear, catch bar, wherein catch bar links to each other with pusher arm, one end of stone dead wire is fixed, the other end passes catch bar and is connected to draw-gear, draw-gear is used to draw stone dead wire, makes that driving pusher arm when stone dead wire is tightened releases sample to be tested.
5. permeameter as claimed in claim 4, it is characterized in that also comprising spring, this spring housing is on catch bar, and this spring is compressed when draw-gear traction stone dead wire, resile shape and make pusher arm and stone dead wire reset of this spring when draw-gear stops to draw.
6. permeameter as claimed in claim 5 is characterized in that draw-gear further links to each other with computing machine, is used for the work by the computer control draw-gear.
7. as each described permeameter of claim 1 to 6, it is characterized in that described drive motor is a motor able to programme.
CN2006101506459A 2006-10-20 2006-10-20 Silicon steel magnetic property detection used ferrometer Expired - Fee Related CN1928582B (en)

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101762797B (en) * 2010-01-14 2012-12-05 沈阳工业大学 Monolithic measuring system and measuring method thereof for two-dimensional magnetic property of electrical steel sheet
CN103630856B (en) * 2013-12-17 2016-03-02 保定天威保变电气股份有限公司 A kind of method of transformer core material magnetic property after Simulated Service
CN104007404A (en) * 2014-06-10 2014-08-27 何华琼 Automatic detection fluxgraph
CN108226826B (en) * 2017-12-11 2020-04-21 全球能源互联网研究院有限公司 Single-piece magnetic permeameter, single-piece sample measuring device and measuring method
CN109541507B (en) * 2018-12-17 2021-01-08 武汉钢铁有限公司 Single-sheet permeameter for detecting performance of oriented silicon steel sheet, detection device and detection method
CN109597007B (en) * 2019-01-07 2021-03-19 武汉钢铁有限公司 Semi-open type device, measuring system and measuring method for detecting magnetic performance of non-oriented silicon steel

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US6580269B2 (en) * 2000-04-14 2003-06-17 Melexis Uk Ltd. Magnetic sensing devices and systems
US6710594B2 (en) * 2002-03-20 2004-03-23 Samsung Electronics Co., Ltd. Method and apparatus supporting magnetic performance measurement of merged read-write heads using the write current and read current
CN1573349A (en) * 2003-05-28 2005-02-02 财团法人电气磁气材料研究所 Thin film magnetic sensor and method of manufacturing the same

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
CN2171874Y (en) * 1993-03-29 1994-07-13 东北工学院 Pulse surveying device for permanent-magnet material
US6580269B2 (en) * 2000-04-14 2003-06-17 Melexis Uk Ltd. Magnetic sensing devices and systems
US6710594B2 (en) * 2002-03-20 2004-03-23 Samsung Electronics Co., Ltd. Method and apparatus supporting magnetic performance measurement of merged read-write heads using the write current and read current
CN1573349A (en) * 2003-05-28 2005-02-02 财团法人电气磁气材料研究所 Thin film magnetic sensor and method of manufacturing the same

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