CN107688159B - Magnetic flux detection device and magnetic flux detection method - Google Patents
Magnetic flux detection device and magnetic flux detection method Download PDFInfo
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- CN107688159B CN107688159B CN201710671998.1A CN201710671998A CN107688159B CN 107688159 B CN107688159 B CN 107688159B CN 201710671998 A CN201710671998 A CN 201710671998A CN 107688159 B CN107688159 B CN 107688159B
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- G—PHYSICS
- 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
- G01R33/1215—Measuring magnetisation; Particular magnetometers therefor
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Abstract
The invention is applicable to the technical field of magnetic flux detection, and discloses magnetic flux detection equipment and a magnetic flux detection method. The magnetic flux detection equipment comprises a detection rack and a magnetic flux detection head, wherein the detection rack is connected with a multidirectional driving device for driving the magnetic flux detection head to move relative to the detection rack, the magnetic flux detection equipment further comprises a display screen for displaying magnetic flux indexes, and the magnetic flux detection head is connected with a calculation processing module. The magnetic flux detection method uses the above-described magnetic flux detection apparatus. According to the magnetic flux detection equipment and the magnetic flux detection method, the magnetic pole surface area can be calculated through the calculation processing module by detecting the boundary of the magnetic force line, the magnetic pole surface area is multiplied by the maximum magnetic flux density square value by combining the maximum magnetic flux density square value detected by the movement of the magnetic flux detection head in a plane, the magnetic flux index can be obtained through the calculation processing module, the operation of the test process is simple, the intelligent degree is high, and the test result is accurate and visual.
Description
Technical Field
The invention belongs to the technical field of magnetic flux detection, and particularly relates to magnetic flux detection equipment and a magnetic flux detection method.
Background
Magnets are widely used on children's products, including toys. The magnetic characteristics of the magnet affect the human body, and particularly, the magnet is used on products which are carried or worn on the human body, so that the human body is magnetically interfered for a long time. International requirements for the use of magnets in children's products, including toys, generally impose constraints using magnetic flux indices. Aiming at the magnetic flux index test of the magnet used on the finished product of the children product, the current phase-change test method mainly uses a magnetic flux meter to test the magnetic flux, then the size of the magnet is tested by disassembling the machine, and then the calculation is carried out. When the magnetic flux meter is used for testing the magnetic flux, the maximum value is not easy to find, and meanwhile, the size of the magnet for testing by disassembling the machine is complicated, the magnetic flux index value cannot be obtained visually and accurately, and the detection is inconvenient and poor in accuracy.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides magnetic flux detection equipment and a magnetic flux detection method, which are convenient to detect and have high accuracy and reliability.
The technical scheme of the invention is as follows: the utility model provides a magnetic flux check out test set, includes detects rack and magnetic flux and detects the head, it is connected with and is used for the drive to detect the rack is relative detect the multidirectional drive arrangement that the rack removed, magnetic flux check out test set still includes and is used for showing the display screen of magnetic flux index, the magnetic flux detects the head and is connected with calculation processing module.
Optionally, the multi-directional driving device includes a first guide rail and a first sliding member slidably connected to the first guide rail, and the magnetic flux detection head is connected to the first sliding member.
Optionally, the first sliding part includes a second guide rail and a second sliding part, the second guide rail is perpendicular to the first guide rail, the second sliding part is slidably connected to the second guide rail, and the magnetic flux detection head is connected to the second sliding part.
Optionally, a third sliding part is arranged between the magnetic flux detection head and the second sliding part, or a third sliding part is arranged between the first guide rail and the second guide rail; the sliding direction of the third sliding member is perpendicular to the direction of the first guide rail and the direction of the second guide rail.
Optionally, the first guide rail is provided with two, the two first guide rails are arranged at two sides of the detection rack at a distance, the first sliding component further comprises two first sliding blocks and two longitudinal rods, the two first sliding blocks are respectively connected to the first guide rail in a sliding manner, the two longitudinal rods are respectively connected to the two first sliding blocks, and two ends of the second guide rail are respectively connected to the upper ends of the two longitudinal rods.
Optionally, a second slider is slidably connected to the second guide rail, and the magnetic flux detection head is connected to the second slider.
Optionally, the longitudinal rod is a liftable longitudinal rod.
Optionally, a camera for projecting the area to be detected to the display screen is arranged on one side of the magnetic flux detection head.
Optionally, an operation control button is arranged at the detection rack or the display screen.
A magnetic flux detecting method using a magnetic flux detecting apparatus as defined in any one of the above, comprising the steps of:
the method comprises the steps of placing a product to be detected on a detection rack of magnetic flux detection equipment, controlling a multidirectional driving device to enable a magnetic flux detection head to be longitudinally close to the surface of a magnet of the product to be detected, controlling the multidirectional driving device to enable the magnetic flux detection head to horizontally move, inducing and recording a maximum magnetic flux density square value and a change boundary of magnetic lines of force by the magnetic flux detection head, calculating the surface area of a magnetic pole according to the change boundary of the magnetic lines of force detected by the magnetic flux detection head, multiplying the surface area of the magnetic pole by the maximum magnetic flux density square value by a calculation module to obtain a magnetic flux index, and displaying the.
According to the magnetic flux detection equipment and the magnetic flux detection method, the magnetic pole surface area can be calculated through the calculation processing module by detecting the boundary of the magnetic force line, the magnetic pole surface area is multiplied by the maximum magnetic flux density square value by combining the maximum magnetic flux density square value detected by the movement of the magnetic flux detection head in a plane, the magnetic flux index can be obtained through the calculation processing module, the operation of the test process is simple, the intelligent degree is high, and the test result is accurate and visual.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic perspective view of a magnetic flux detection apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
It should be noted that the terms of orientation such as left, right, up and down in the embodiments of the present invention are only relative to each other or are referred to the normal use state of the product, and should not be considered as limiting.
As shown in fig. 1, a magnetic flux detecting apparatus according to an embodiment of the present invention includes a detecting stage 1 and a magnetic flux detecting head 2, wherein the detecting stage 1 is connected to a multi-directional driving device for driving the magnetic flux detecting head 2 to move relative to the detecting stage 1, and the multi-directional driving device is movable along three directions (i.e., three directions of a three-dimensional coordinate axis X, Y, Z) perpendicular to each other. The magnetic flux detection equipment further comprises a display screen 3 used for displaying the magnetic flux index, a calculation processing module can be electrically connected between the display screen 3 and the magnetic flux detection head 2, and the multidirectional driving device can be electrically connected with the calculation processing module. The magnetic flux detection head 2 can detect a magnetic flux density square value, because the magnetic force lines of the magnet change obviously outside the area range of the magnet, the magnetic flux detection head 2 can also identify the boundary of the magnetic force lines based on the change of the magnetic force lines, the magnetic pole surface area can be calculated by the calculation processing module by detecting the boundary of the magnetic force lines, the magnetic flux index can be obtained by multiplying the magnetic pole surface area by the maximum magnetic flux density square value by combining the maximum magnetic flux density square value detected by the movement of the magnetic flux detection head 2 in a plane, the magnetic flux index can be obtained visually and accurately, the detection is convenient, and the reliability is good.
Specifically, the multi-directional driving apparatus includes a first guide rail 4 and a first sliding member slidably coupled to the first guide rail 4, the magnetic flux detecting head 2 is coupled to the first sliding member, and the first guide rail 4 may be disposed along a length direction of the detection stage 1.
Specifically, the first sliding member may be driven by a first driving member, and the first driving member may include a screw transmission mechanism and a servo motor electrically connected to the calculation processing module and driving the screw transmission mechanism.
Specifically, the first sliding part includes a second guide rail 5 and a second sliding part, the second guide rail 5 is perpendicular to the first guide rail 4 in space but does not intersect, the second sliding part is slidably connected to the second guide rail 5, and the magnetic flux detection head 2 is connected to the second sliding part. The second sliding part can be portal frame-shaped, and the stability is good, so that the magnetic flux detection head 2 can be accurately positioned. The second guide rail 5 may be provided in the width direction of the inspection stage 1.
Specifically, the second sliding member may be driven by a second driving member, and the second driving member may include a screw transmission mechanism and a servo motor electrically connected to the calculation processing module. The coordinate position of the magnetic flux detecting head 2 can be accurately obtained, and of course, the coordinate position of the magnetic flux detecting head 2 can also be obtained by other means, such as a displacement sensor.
Specifically, a third sliding part is arranged between the magnetic flux detection head 2 and the second sliding part, or a third sliding part (a movable longitudinal rod 8, which can be adjusted in height) is arranged between the first guide rail 4 and the second guide rail 5; the sliding direction of the third sliding member is perpendicular to the direction of the first rail 4 and the direction of the second rail 5. In this embodiment, the third sliding member is used to adjust the relative height of the magnetic flux detecting head 2 with respect to the table of the detection table 1 to adapt to the detection of different types of product magnetic flux indexes.
Specifically, the first guide rails 4 are provided with two, the two first guide rails 4 are arranged on two sides of the detection rack 1 in parallel at intervals, the first sliding component further comprises two first sliding blocks 6 and two longitudinal rods 8, the two first sliding blocks 6 are respectively connected to the first guide rails 4 in a sliding manner, the two longitudinal rods 8 are respectively connected to the two first sliding blocks 6, two ends of the second guide rail 5 are respectively connected to the upper ends of the two longitudinal rods 8, and the magnetic flux detection head 2 can slide along the direction X, Y (namely, the length direction and the width direction of the detection rack 1).
Specifically, a second slider 7 is slidably attached to the second rail 5, and the magnetic flux detection head 2 is attached to the second slider 7.
Specifically, the longitudinal rod 8 is a liftable longitudinal rod, the liftable longitudinal rod can be used as a third sliding component, and the liftable longitudinal rod 8 can be lifted manually or electrically to adjust the magnetic flux detection head 2 to a proper height.
Specifically, one side of magnetic flux detection head 2 is provided with and is used for waiting to detect the area cast screen to display screen 3's camera 9, and camera 9 can be with the face projection that awaits measuring to display screen 3, can directly control magnetic flux detection head 2 on display screen 3's control panel and carry out manual measurement. The magnetic flux detection head 2 and the camera 9 are both fixed below the second sliding block 7, and the magnetic flux detection head 2 and the camera 9 are both towards the table top of the detection table frame 1. The magnetic flux detecting head 2 and the camera 9 can be moved in synchronization.
Specifically, the detection platform 1 or the display screen 3 may be provided with an operation control button, and the display screen 3 may also be a touch display screen 3. In this embodiment, an operation control button window 10 is provided at one end of the detection stage 1.
The embodiment of the invention also provides a magnetic flux detection method, and the magnetic flux detection equipment comprises the following steps:
a product to be detected is placed on a detection rack 1 of magnetic flux detection equipment, a multidirectional driving device is controlled to enable a magnetic flux detection head 2 to be longitudinally close to the surface of a magnet of the product to be detected, the multidirectional driving device is controlled to enable the magnetic flux detection head 2 to horizontally move, the magnetic flux detection head 2 induces and records a maximum magnetic flux density square value and a change boundary of a magnetic line of force, a magnetic pole surface area is calculated according to the closed change boundary of the magnetic line of force detected by the magnetic flux detection head 2, a calculation module multiplies the magnetic pole surface area by the maximum magnetic flux density square value to obtain a magnetic flux index, and a display screen 3 displays the magnetic flux index. The product to be detected can be a smart watch, a mobile phone, a portable sound box, a toy and the like. The movement of the magnetic flux detection head 2 can be driven by a motor or manually controlled, the surface to be detected can be scanned when the magnetic flux is measured so as to obtain the maximum magnetic flux density value, meanwhile, the magnetic level surface area is tested according to the change of the magnetic flux value, the magnetic pole surface area is multiplied by the maximum magnetic flux density square value by the calculation processing module so as to obtain the magnetic flux index, the magnetic flux index value can be obtained visually and accurately, the detection is convenient, and the reliability is good.
According to the magnetic flux detection equipment and the magnetic flux detection method provided by the embodiment of the invention, the surface area of the magnetic pole can be calculated through the calculation processing module by detecting the boundary of the magnetic force line, the magnetic flux index can be obtained by multiplying the surface area of the magnetic pole by the square value of the maximum magnetic flux density through the calculation processing module in combination with the square value of the maximum magnetic flux density detected by the movement of the magnetic flux detection head 2 in a plane, the test process is simple to operate, the intelligent degree is high, and the test result is accurate and visual.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The magnetic flux detection equipment is characterized by comprising a detection rack and a magnetic flux detection head, wherein the magnetic flux detection head identifies the boundary of a magnetic line of force based on the change of the magnetic line of force, the detection rack is connected with a multidirectional driving device for driving the magnetic flux detection head to move relative to the detection rack, the magnetic flux detection equipment further comprises a display screen for displaying a magnetic flux index, and the magnetic flux detection head is connected with a calculation processing module which calculates a magnetic pole surface area according to the boundary of the detected magnetic line of force and multiplies the magnetic pole surface area by a maximum magnetic flux density square value to obtain the magnetic flux index.
2. The magnetic flux sensing apparatus of claim 1, wherein said multidirectional driving means comprises a first guide rail and a first slide member slidably coupled to said first guide rail, said magnetic flux sensing head being coupled to said first slide member.
3. The magnetic flux detecting apparatus as claimed in claim 2, wherein said first slide member includes a second guide rail and a second slide member, said second guide rail being perpendicular to said first guide rail, said second slide member being slidably coupled to said second guide rail, said magnetic flux detecting head being coupled to said second slide member.
4. A magnetic flux detecting apparatus according to claim 3, wherein a third slide member is provided between said magnetic flux detecting head and said second slide member, or a third slide member is provided between said first rail and said second rail; the sliding direction of the third sliding member is perpendicular to the direction of the first guide rail and the direction of the second guide rail.
5. The magnetic flux detecting apparatus according to claim 4, wherein the first guide rail is provided in two, the two first guide rails are provided at both sides of the detecting stage at a distance, the first sliding member further includes two first sliders and two longitudinal bars, the two first sliders are slidably connected to the first guide rails, the two longitudinal bars are connected to the two first sliders, and both ends of the second guide rail are connected to upper ends of the two longitudinal bars.
6. The magnetic flux sensing apparatus of claim 5, wherein a second slider is slidably coupled to said second rail, and said magnetic flux sensing head is coupled to said second slider.
7. The magnetic flux sensing device of claim 5, wherein said longitudinal rod is a liftable longitudinal rod.
8. The magnetic flux detecting apparatus according to any one of claims 1 to 7, wherein a camera for projecting an area to be detected to the display screen is provided on one side of the magnetic flux detecting head.
9. A magnetic flux detecting apparatus according to any one of claims 1 to 7, wherein an operation control button is provided at said detecting stand or said display screen.
10. A magnetic flux detecting method, characterized in that a magnetic flux detecting apparatus according to any one of claims 1 to 9 is employed, comprising the steps of:
the method comprises the steps of placing a product to be detected on a detection rack of magnetic flux detection equipment, controlling a multidirectional driving device to enable a magnetic flux detection head to be longitudinally close to the surface of a magnet of the product to be detected, controlling the multidirectional driving device to enable the magnetic flux detection head to horizontally move, inducing and recording a maximum magnetic flux density square value and a change boundary of magnetic lines of force by the magnetic flux detection head, calculating the surface area of a magnetic pole according to the change boundary of the magnetic lines of force detected by the magnetic flux detection head, multiplying the surface area of the magnetic pole by the maximum magnetic flux density square value by a calculation module to obtain a magnetic flux index, and displaying the.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710671998.1A CN107688159B (en) | 2017-08-08 | 2017-08-08 | Magnetic flux detection device and magnetic flux detection method |
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| CN201710671998.1A CN107688159B (en) | 2017-08-08 | 2017-08-08 | Magnetic flux detection device and magnetic flux detection method |
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| CN107688159A CN107688159A (en) | 2018-02-13 |
| CN107688159B true CN107688159B (en) | 2020-09-01 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108519568A (en) * | 2018-03-30 | 2018-09-11 | 广东小天才科技有限公司 | A kind of automatic detection carries the device and detection method of magnet terminal |
| CN108445430A (en) * | 2018-06-21 | 2018-08-24 | 苏州佳祺仕软件技术有限公司 | A kind of single-station apparatus for measuring magnetic flux |
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| JP2003279611A (en) * | 2002-03-26 | 2003-10-02 | Hitachi Ltd | Survey system for generation source of electromagnetic wave |
| CN201335884Y (en) * | 2008-12-26 | 2009-10-28 | 北京有色金属研究总院 | Magnetic induction intensity positioned measuring instrument |
| CN203502574U (en) * | 2013-09-12 | 2014-03-26 | 麦格雷博电子(深圳)有限公司 | Magnetic flux measurement device based on three dimensional Helmholtz coil |
| CN203658557U (en) * | 2013-12-25 | 2014-06-18 | 珠海市广浩捷精密机械有限公司 | Magnetic flux testing machine |
| CN204009028U (en) * | 2014-07-30 | 2014-12-10 | 叶文杰 | Magnet mgnetic observations device |
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2017
- 2017-08-08 CN CN201710671998.1A patent/CN107688159B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003279611A (en) * | 2002-03-26 | 2003-10-02 | Hitachi Ltd | Survey system for generation source of electromagnetic wave |
| CN201335884Y (en) * | 2008-12-26 | 2009-10-28 | 北京有色金属研究总院 | Magnetic induction intensity positioned measuring instrument |
| CN203502574U (en) * | 2013-09-12 | 2014-03-26 | 麦格雷博电子(深圳)有限公司 | Magnetic flux measurement device based on three dimensional Helmholtz coil |
| CN203658557U (en) * | 2013-12-25 | 2014-06-18 | 珠海市广浩捷精密机械有限公司 | Magnetic flux testing machine |
| CN204009028U (en) * | 2014-07-30 | 2014-12-10 | 叶文杰 | Magnet mgnetic observations device |
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