CN201716404U - Small magnet magnetism tester - Google Patents
Small magnet magnetism tester Download PDFInfo
- Publication number
- CN201716404U CN201716404U CN201020208007XU CN201020208007U CN201716404U CN 201716404 U CN201716404 U CN 201716404U CN 201020208007X U CN201020208007X U CN 201020208007XU CN 201020208007 U CN201020208007 U CN 201020208007U CN 201716404 U CN201716404 U CN 201716404U
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- Prior art keywords
- loop
- magnetizing
- tiny magnets
- magnetizes
- magnets magnetic
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- Expired - Fee Related
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Abstract
The utility model relates to a small magnet magnetism tester consisting of a precise fluxmeter, a small magnet magnetism testboard and a magnetizing power supply, wherein the small magnet magnetism testboard is provided with a terminal; the magnetizing power supply is connected with the small magnet magnetism testboard; and an exploring coil in the small magnet magnetism testboard is connected with the terminal and connected into a signal input port of the precise fluxmeter through leads. Compared with the prior art, the small magnet magnetism tester has the advantages of low cost, high efficiency, small occupied area, low operating cost, simple operation and low maintenance cost, and is not easy to damage, and through calculation, the electrical parameters are accurate and reliable.
Description
Technical field
The utility model relates to a kind of magnetic proving installation, especially relates to a kind of tiny magnets magnetic tester.
Background technology
Tiny magnets magnetic tester is a kind of instrumentation that is used to measure tiny magnets magnetic.Existing market does not have this instrumentation, test weight and have only several milligrams, full-size is smaller or equal to 1.5mm, minimum dimension is the faint magnetic of the magnet of 0.2mm only, can only be the vibrating sample magnetometer that just has by having only College Physics, and this instrument be very expensive, not only needs senior professional and technical personnel to go operation, and test period is long, efficient is low, is not suitable for factory as the examination and test of products.
Summary of the invention
The purpose of this utility model is exactly to provide the tiny magnets magnetic that a kind of cost is low, efficient is high, easy and simple to handle tester for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of tiny magnets magnetic tester, it is characterized in that, this tester is made up of accurate magnetic-flux meter, tiny magnets magnetic test board and the power supply that magnetizes, on the described tiny magnets magnetic test board binding post is set, the described power supply that magnetizes is connected with tiny magnets magnetic test board through socket, and the detecting coil in the described tiny magnets magnetic test board is connected and inserts through lead the signal input port of accurate magnetic-flux meter with binding post.
Described tiny magnets magnetic test board is made of the loop of magnetizing, detecting coil, loading mechanism and substrate, the described loop of magnetizing is located at the top of substrate, described detecting coil is located in the loop of magnetizing and is close to the end of going up lower yoke in the loop of magnetizing, be positioned at the centre in the loop of magnetizing of loading mechanism, described substrate is located at the bottom in the loop of magnetizing.
The described loop of magnetizing comprises upper plate, upper magnet yoke, lower yoke, side plate, coil magnetizes, support ring and lower plate, described upper magnet yoke is located at the bottom of upper plate and passes upper plate, the knob at its top can be regulated the height of upper magnet yoke by screw thread, change the size of the air gap that magnetizes according to the thickness of magnet steel, described lower yoke is located at the bottom of loading mechanism, described side plate be located at upper plate below around, the described coil that magnetizes is located at the both sides of upper magnet yoke and lower yoke, described support ring is located at the outside of the coil that magnetizes of lower yoke both sides, and described lower plate is located at the bottom of support ring.
Described loading mechanism is an objective table.
Described substrate comprises base plate and binding post, and described base plate is located at the bottom of lower plate, and described binding post is located on the base plate.
The described coil that magnetizes is connected through lead with binding post.
In addition, described accurate magnetic-flux meter comprises the drift calibration knob, sets button, measures button, magnetic flux display, pilot lamp, signal input port, shell and amplifying circuit.
The described power supply that magnetizes comprises control loop, charge circuit, energy-storage travelling wave tube, discharge loop, switch, pilot lamp, discharges and recharges button and socket.
Compared with prior art, the utlity model has following advantage:
(1) cost is low, efficient is high: can judge the quality of product magnetic equally, and one of percentage of the not enough vibrating sample magnetometer of equipment cost, and efficient can exceed hundred times, is fit to the shop test and the examination and test of products;
(2) floor area is little, and operating cost is low: place the work that gets final product on the desk, and vibrating sample magnetometer need be placed on generally in tens square metres the house;
(3) easy and simple to handle, maintenance cost is low: this invention is simple to operate, common laborer that can use magnetic-flux meter of graduating from junior middle school trains half an hour and gets final product normal running, the electric parameter of this invention is through calculating, and is correct reliable, not fragile, just in case break down also as long as the instrument worker of enterprise can repair, and vibrating sample magnetometer must be operated by the professional and technical personnel, or under professional teacher's guidance, uses as the above student's of junior college Specialty Experiment.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the front view of tiny magnets magnetic test board;
Fig. 3 is the vertical view of tiny magnets magnetic test board.
1 is magnetize power supply for base plate, 212 for binding post, 3 for lower plate, 211 for support ring, 210 for objective table, 29 for magnet workpiece mounting hole, 28 for lower yoke, 27 for detecting coil, 26 for side plate, 25 for the coil that magnetizes, 24 for upper magnet yoke, 23 for upper plate, 22 for tiny magnets magnetic test board, 21 for accurate magnetic-flux meter, 2 among the figure.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Embodiment
A kind of tiny magnets magnetic tester, its structure as shown in Figure 1, this tester is made up of accurate magnetic-flux meter 1, tiny magnets magnetic test board 2 and the power supply 3 that magnetizes, on the tiny magnets magnetic test board 2 binding post 212 is set, the power supply 3 of magnetizing is connected with plug on the tiny magnets magnetic test board 2 by a socket, be connected by the plug of another socket with accurate magnetic-flux meter 1, the detecting coil 25 usefulness leads of tiny magnets magnetic test board 2 are connected with the binding post 212 on the base plate 211, and insert the signal input port of accurate magnetic-flux meter 1 with lead.
Accurate magnetic-flux meter 1 comprises the drift calibration knob, sets button, measures button, magnetic flux display, pilot lamp, signal input port, shell and amplifying circuit, setting button, measurement button, magnetic flux display, pilot lamp, signal input port are located on the shell, wherein drift about calibration knob, set button, measure button and be connected with amplifying circuit, set button and can select with the measurement button, amplifying circuit connects respectively at control coil, magnetic flux display and pilot lamp.The power supply 3 that magnetizes comprises control loop, charge circuit, energy-storage travelling wave tube, discharge loop, switch, pilot lamp, discharges and recharges button and socket, by control loop control charge circuit and discharge loop, between charge circuit and the discharge loop energy-storage travelling wave tube is set, switch, pilot lamp, discharges and recharges button and socket is located on the shell of the power supply 3 that magnetizes.
The structure of tiny magnets magnetic test board 2 is shown in Fig. 2～3, this tester is made of the loop of magnetizing, detecting coil 25, objective table 28 and substrate, the magnetize top of the base plate 211 that the loop is located at, detecting coil 25 is located in the loop of magnetizing and is close to the end of going up lower yoke in the loop of magnetizing, be positioned at the centre in the loop of magnetizing of loading mechanism, substrate is located at the bottom of objective table 28.
Wherein, the loop of magnetizing comprises upper plate 21, upper magnet yoke 22, coil 23 magnetizes, side plate 24, lower yoke 26, support ring 29 and lower plate 210, upper magnet yoke 22 is located at the bottom of upper plate 21 and passes upper plate, the knob at its top can be regulated the height of magnetic Yoke by screw thread, change the size of the air gap that magnetizes according to the thickness of magnet steel, lower yoke 26 is located at the bottom of objective table 28, side plate 24 be located at upper plate 21 belows around, the coil 23 that magnetizes is located at the both sides of upper magnet yoke 21 and lower yoke 26, support ring 29 is located at the outside of the coil 23 that magnetizes of lower yoke 26 both sides, and lower plate 210 is located at the bottom of support ring 29.Substrate comprises base plate 211 and binding post 212, and this base plate 211 is located at the bottom of lower plate 210, and binding post 212 has four, is located on the base plate 211.Magnetize coil 23 and binding post 212 is connected through lead.Have the corresponding magnet workpiece mounting hole 27 of two sizes and workpiece size on the objective table 28, can pack into correctly, reliably and the disengaging magnetic circuit that magnetizes for workpiece, loading mechanism adopts no magnetic material.This loading mechanism can accurately be controlled the tram of workpiece magnet in magnetic circuit, has guaranteed reappearance, the accuracy of magnetic test value.Upper magnet yoke 22, the lower yoke 26 of upper plate 21, lower plate 210, side plate 24, band adjusting knob adopt through heat treated electrical pure iron and make.
During use, the workpiece magnet is installed in the magnet workpiece mounting hole 27 in the objective table 28, with manually objective table 28 being sent in the loop of magnetizing, the stop means of objective table 28 can guarantee that the workpiece magnet delivered to desired location exactly, the loop assurance workpiece magnet that magnetizes magnetizes in closed magnetic circuit, makes the utility model be that the workpiece magnet is saturated with minimum energy and magnetizes.When the workpiece magnet that has magnetized is drawn out on objective table 28, the magnetic flux that magnetizes in the loop changes, just have induced current to flow through in the detecting coil 25 of upper magnet yoke 22, lower yoke 26 heads, magnetic-flux meter promptly demonstrates the flux value that is directly proportional with magnet magnetic flux size.
The loading mechanism that the utility model adopts can make magnet accurately be installed to the desired location of the magnetic circuit that magnetizes, and magnetizes in being close to closed circuit magnetic circuit.When magnet is extracted out, in the electric loop of detecting coil 5 and accurate magnetic-flux meter 13 compositions,, magnetic flux produces induced current owing to changing.According to the law of electromagnetic induction, the size of induced current is proportional to the size of flux change amount, and when flux change was zero, electric current was zero.Electric current is exactly an electric weight to time integral, and therefore, the size of magnetic-flux meter reading is proportional to the size of electric weight, is proportional to the size of flux change simultaneously.Because when magnet was extracted out, magnetic flux was zero in the circuit,, the size of flux change in closed magnetic circuit, produces the size of magnetic flux so just in time equaling the magnet back of magnetizing.The magnetic-flux meter reading is big more, and the magnetic flux that the expression magnet produces is big more, and the performance of magnet is good more.The accuracy of loading mechanism has guaranteed the accuracy that magnetic is tested.
Claims (6)
1. tiny magnets magnetic tester, it is characterized in that, this tester is made up of accurate magnetic-flux meter, tiny magnets magnetic test board and the power supply that magnetizes, on the described tiny magnets magnetic test board binding post is set, the described power supply that magnetizes is connected with tiny magnets magnetic test board through socket, and the detecting coil in the described tiny magnets magnetic test board is connected and inserts through lead the signal input port of accurate magnetic-flux meter with binding post.
2. a kind of tiny magnets magnetic tester according to claim 1, it is characterized in that, described tiny magnets magnetic test board is made of the loop of magnetizing, detecting coil, loading mechanism and substrate, the described loop of magnetizing is located at the top of substrate, described detecting coil is located in the loop of magnetizing and is close to the end of going up lower yoke in the loop of magnetizing, be positioned at the centre in the loop of magnetizing of loading mechanism, described substrate is located at the bottom in the loop of magnetizing.
3. a kind of tiny magnets magnetic tester according to claim 2, it is characterized in that, the described loop of magnetizing comprises upper plate, upper magnet yoke, lower yoke, side plate, coil magnetizes, support ring and lower plate, described upper magnet yoke is located at the bottom of upper plate and passes upper plate, its top is provided with the knob of the height of regulating upper magnet yoke, described lower yoke is located at the bottom of loading mechanism, described side plate be located at upper plate below around, the described coil that magnetizes is enclosed within the termination portion of upper magnet yoke and lower yoke, the magnetize outside of coil of the lower yoke that is located at described support ring, described lower plate is located at the bottom of support ring.
4. a kind of tiny magnets magnetic tester according to claim 2 is characterized in that described loading mechanism is an objective table.
5. a kind of tiny magnets magnetic tester according to claim 2 is characterized in that described substrate comprises base plate and binding post, and described base plate is located at the bottom of lower plate, and described binding post is located on the base plate.
6. a kind of tiny magnets magnetic tester according to claim 3 is characterized in that the described coil that magnetizes is connected through lead with binding post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020208007XU CN201716404U (en) | 2010-05-27 | 2010-05-27 | Small magnet magnetism tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020208007XU CN201716404U (en) | 2010-05-27 | 2010-05-27 | Small magnet magnetism tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201716404U true CN201716404U (en) | 2011-01-19 |
Family
ID=43462410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020208007XU Expired - Fee Related CN201716404U (en) | 2010-05-27 | 2010-05-27 | Small magnet magnetism tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201716404U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105807123A (en) * | 2016-05-12 | 2016-07-27 | 核工业理化工程研究院 | Current collecting circuit of magnetizing power source |
-
2010
- 2010-05-27 CN CN201020208007XU patent/CN201716404U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105807123A (en) * | 2016-05-12 | 2016-07-27 | 核工业理化工程研究院 | Current collecting circuit of magnetizing power source |
| CN105807123B (en) * | 2016-05-12 | 2019-03-29 | 核工业理化工程研究院 | Magnetize the current collection circuit of power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20160527 |