Device for accurately measuring magnetic field intensity by combining multiple layers of displacement tables with teslameter

Abstract

The invention relates to the technical field of magnetic field measurement, in particular to a device for accurately measuring magnetic field intensity by combining a multi-layer displacement table with a teslameter. According to the technical scheme, the device comprises an optical plate base, two displacement table fixers are fixed to the top of the optical plate base, two magnet placement devices used for mounting magnets are arranged above the displacement table fixers, and the device further comprises a fixing assembly which is located above the optical plate base and used for fixing a handheld teslameter; the hand-cranking sliding rail is installed on the top of the optical plate base and used for adjusting the horizontal position of the fixing assembly; and a longitudinal adjusting mechanism. According to the invention, transverse position adjustment of the handheld teslameter is realized, longitudinal adjustment and height adjustment of the position of the magnet can be realized, stable positioning of the probe position of the handheld teslameter is realized, measurement errors of a conventional handheld teslameter caused by shaking of the handheld teslameter held by an experimenter are effectively avoided, and the measurement precision is improved.

Description

Technical Field

[0001] The invention relates to the technical field of magnetic field measurement, and in particular to a device for accurately measuring magnetic field strength by combining a multi-layer displacement table with a Tesla meter. Background Art

[0002] With the rapid development of science and technology, magnetic field measurement technology is increasingly used in various fields. In the field of scientific research, accurate measurement of magnetic field strength is of great significance for studying the magnetism of materials, electromagnetic interactions, etc.; in the industrial field, magnetic field measurement technology is widely used in the performance evaluation and optimization of equipment such as motors, transformers, and electromagnets; in the medical field, magnetic field measurement technology is an indispensable part of high-end medical equipment such as nuclear magnetic resonance imaging (MRI). Conventional magnetic field measurement devices are roughly divided into two types. One is a large-scale magnetic meter, which has the advantages of high measurement accuracy and large measurement space, but it has the problems of high cost, large space occupation, and generally requires professional magnetic professionals to operate. This kind of equipment is often only available in professional magnetic field measurement and research institutions; the other is a handheld Tesla meter commonly used in laboratories. Because of its mobility and simple operation, it is often used for real-time measurement in laboratories. However, because its probe position cannot be firmly positioned or cannot be continuously centered, coupled with various uncertain factors such as the shaking of the experimenter's hand, the measurement error of the conventional handheld Tesla meter is very large, and the measurement accuracy is difficult to guarantee. In addition, when multiple magnets are used in combination and the size and distribution of the superimposed magnetic field need to be studied, conventional handheld Tesla meters cannot achieve continuous measurement along the direction of the magnet arrangement, and cannot guarantee the accuracy of the measurement.

[0003] Therefore, the present application proposes a device for accurately measuring magnetic field strength by combining a multi-layer translation stage with a Tesla meter. Summary of the invention

[0004] The purpose of the present invention is to address the problem in the background technology that there are multiple uncertainties in the probe position due to the experimenter's holding and shaking of the hand, which leads to large measurement errors and difficulty in ensuring the measurement accuracy of conventional handheld Tesla meters. A device for accurately measuring the magnetic field strength using a multi-layer displacement table combined with a Tesla meter is proposed.

[0005] The technical solution of the present invention is a device for accurately measuring magnetic field strength by combining a multi-layer translation stage with a Tesla meter, comprising an optical plate base, two translation stage fixtures are fixed on the top of the optical plate base, two magnet placement devices for installing magnets are arranged above the translation stage fixture, and also comprising:

[0006] A fixing component, located above the optical plate base and used for fixing the handheld Tesla meter;

[0007] A hand-cranked slide rail is installed on the top of the optical plate base to adjust the horizontal position of the fixed components;

[0008] A longitudinal adjustment mechanism is installed on the top of the translation stage fixture to adjust the movement of the magnet placement device, and the movement direction of the magnet placement device is spatially perpendicular to the movement direction of the fixing component;

[0009] A height adjustment mechanism, mounted on the longitudinal adjustment mechanism, for adjusting the height of the magnet placement device;

[0010] Water cooling system installed in the magnet mount.

[0011] Optionally, the fixing assembly includes a slide rail connector that moves horizontally through a hand-cranked slide rail, and a handheld Tesla meter handle holder and a handheld Tesla meter probe holder are installed on the top of the slide rail connector.

[0012] Optionally, the handheld Tesla meter handle fixer includes a fixing pile fixed on the slide rail connector, the fixing pile is provided with an M8 threaded hole, an M8 full-thread screw is threadedly installed in the M8 threaded hole, the top of the M8 full-thread screw is threadedly connected with a locking head, a placement groove is provided on the top of the locking head, a handheld Tesla meter handle is provided in the placement groove, a handheld Tesla meter probe is installed at one end of the handheld Tesla meter handle, an M4 cup head threaded locking hole is provided on one side of the locking head, an M4 bolt is threadedly installed on the M4 cup head threaded locking hole, and one end of the M4 bolt is threadedly connected to the inner wall of one side of the placement groove.

[0013] Optionally, the handheld Tesla meter probe holder includes two fixing piles 2 fixed to the top of the slide rail connector, the fixing piles 2 are provided with a plurality of side M3 cup head screw holes equidistantly arranged along the length direction thereof, the side M3 cup head screw holes are threadedly installed with M3 bolts, one end of the M3 bolts is fixedly connected with a locking block, the handheld Tesla meter probe is located between the two locking blocks, and a Teflon tape protective layer is adhered to the top and bottom of the handheld Tesla meter probe.

[0014] Optionally, a handheld Teslameter chip is installed at one end of the handheld Teslameter probe.

[0015] Optionally, the hand-cranked slide rail includes a track groove in which a threaded rod is rotatably installed, a handle fixed to the threaded rod is rotatably installed at one end of the track groove, a movable block threadably connected to the threaded rod is slidably installed on the track groove, and the slide rail connector is fixedly connected to the movable block.

[0016] Optionally, the water cooling system includes a cooling water pipeline installed in the magnet mounter, and the cooling water circulates through an external water source.

[0017] Optionally, the longitudinal adjustment mechanism includes a base fixed on the translation stage fixture, a motion platform is slidably mounted on the top of the base, a positioning block is fixed on one side of the base, an adjustment rod is threadedly mounted on the positioning block, a linkage block is fixed on the bottom of the motion platform, and one end of the adjustment rod passes through the positioning block and rests on the linkage block.

[0018] Optionally, the height adjustment mechanism includes a track plate fixed to the top of the moving platform, a lifting plate is slidably installed on one side of the track plate, a lifting platform is fixedly installed on the top of the lifting plate, a rectangular block is fixed on the top of the moving platform, an operating rod is threadedly installed on the rectangular block, a right-angle block is rotatably installed on one side of the lifting plate close to the rectangular block, one end of the operating rod passes through the rectangular block and presses against one side of the right-angle block, a column is fixed at the bottom of the lifting platform, and the bottom of the column presses against the other side of the right-angle block.

[0019] Compared with the prior art, the present invention has at least one of the following beneficial technical effects:

[0020] The handheld Tesla meter is fixed by the handheld Tesla meter handle fixer and the handheld Tesla meter probe fixer. The handle is rotated to drive the threaded rod to rotate, so that the movable block moves laterally and the slide rail connector moves, thereby realizing the lateral position adjustment of the handheld Tesla meter;

[0021] The longitudinal position of the magnet on the magnet placer is adjusted by manually rotating the adjusting rod, and the height of the lifting platform is adjusted by manually rotating the operating rod. Through the above adjustments, the position of the handheld Tesla meter probe is stably positioned, effectively avoiding the measurement error of the conventional handheld Tesla meter caused by the shaking of the experimenter's hand, and improving the measurement accuracy.

[0022] Furthermore, the present invention can be applied in combination with multiple magnets, and is suitable for studying the size and distribution of superimposed magnetic fields, achieving continuous measurement along the direction of magnet arrangement, and ensuring measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a device for accurately measuring magnetic field strength by combining a multi-layer translation stage with a Tesla meter;

[0024] Figure 2 It is a structural diagram of a handheld Tesla meter handle holder;

[0025] Figure 3 It is a structural schematic diagram of a handheld Tesla meter probe holder;

[0026] Figure 4 It is a structural diagram of a hand-cranked slide rail;

[0027] Figure 5It is a structural schematic diagram of the longitudinal adjustment mechanism.

[0028] Figure numerals: 1, optical plate base; 2, handheld Tesla meter handle holder; 3, handheld Tesla meter probe holder; 4, magnet placer; 5, longitudinal adjustment mechanism; 6, slide rail connector; 7, hand-cranked slide rail; 8, translation stage holder; 9, height adjustment mechanism; 201, locking head; 202, M4 cup head threaded locking hole; 203, handheld Tesla meter probe; 204, handheld Tesla meter handle; 205, M8 threaded hole at the bottom of the locking head; 206, M8 full-thread screw; 207, fixing pile 1; 208, M8 threaded hole; 209, placement slot; 210, M4 bolt; 301, fixed pile 2; 302, locking block; 303, Teflon tape protective layer; 304, M3 cup head screw hole on the side; 305, handheld Tesla meter chip; 306, M3 bolt; 501, base; 502, motion platform; 503, positioning block; 504, adjustment rod; 505, linkage block; 701, track groove; 702, handle; 703, threaded rod; 704, movable block; 901, track plate; 902, lifting plate; 903, lifting platform; 904, rectangular block; 905, operating rod; 906, column; 907, right-angle block. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] Example

[0031] like Figure 1 As shown, the present invention proposes a device for accurately measuring magnetic field strength by combining a multi-layer translation stage with a Tesla meter, comprising an optical plate base 1, two translation stage fixtures 8 are fixed on the top of the optical plate base 1, two magnet placement devices 4 for mounting magnets are arranged above the translation stage fixtures 8, a plurality of magnet embedding grooves are provided on the magnet placement devices 4 for placing magnets, which is suitable for studying the size and distribution of superimposed magnetic fields, realizing continuous measurement along the magnet arrangement direction, and ensuring the accuracy of the measurement.

[0032] In this embodiment, a fixing component is also included, which is located above the optical plate base 1 and is used to fix the handheld Tesla meter; the fixing component includes a slide rail connector 6 that is horizontally moved by a hand-cranked slide rail 7, and a handheld Tesla meter handle fixture 2 and a handheld Tesla meter probe fixture 3 are installed on the top of the slide rail connector 6 to fix the handheld Tesla meter.

[0033] like Figure 1-2As shown, the handheld Tesla meter handle holder 2 includes a fixing pile 207 fixed on the slide rail connector 6, the fixing pile 207 is provided with an M8 threaded hole 208, an M8 full-thread screw 206 is installed in the inner thread of the M8 threaded hole 208, the top of the M8 full-thread screw 206 is threadedly connected with a locking head 201, a placement groove 209 is provided on the top of the locking head 201, a handheld Tesla meter handle 204 is provided in the placement groove 209, a handheld Tesla meter probe 203 is installed at one end of the handheld Tesla meter handle 204, an M4 cup head threaded locking hole 202 is provided on one side of the locking head 201, an M4 bolt 210 is threadedly installed on the M4 cup head threaded locking hole 202, and one end of the M4 bolt 210 is threadedly connected to the inner wall of one side of the placement groove 209. The Tesla meter handle is fixed by the handheld Tesla meter handle holder 2, and the handheld Tesla meter handle 204 is placed in the placement groove 209, and the M4 bolt 210 is turned to be threadedly connected with the inner wall of the other side of the placement groove 209, so as to fix the handheld Tesla meter handle 204.

[0034] In addition, if Figure 1 and Figure 3 As shown, the handheld Tesla meter probe holder 3 includes two fixing piles 301 fixed on the top of the slide rail connector 6, and the fixing piles 301 are provided with a plurality of side M3 cup head screw holes 304 arranged equidistantly along the length direction thereof, and the side M3 cup head screw holes 304 are threadedly installed with M3 bolts 306, and one end of the M3 bolts 306 is fixedly connected with a locking block 302, and the handheld Tesla meter probe 203 is located between the two locking blocks 302, and the top and bottom of the handheld Tesla meter probe 203 are pasted with a Teflon tape protective layer 303. The locking block 302 is driven to rotate and move by rotating the M3 bolts 306, and the handheld Tesla meter probe 203 is fixed by the two locking blocks 302 approaching each other, and the M3 bolts 306 are screwed into the side M3 cup head screw holes 304 at different heights, so that the clamping height of the handheld Tesla meter probe 203 can be adjusted, and a handheld Tesla meter chip 305 is installed at one end of the handheld Tesla meter probe 203.

[0035] like Figure 4 As shown, a hand-cranked slide rail 7 for adjusting the horizontal position of the fixed assembly is installed on the top of the optical plate base 1; the hand-cranked slide rail 7 includes a track groove 701, a threaded rod 703 is rotatably installed in the track groove 701, a handle 702 fixed to the threaded rod 703 is rotatably installed at one end of the track groove 701, a movable block 704 threadedly connected to the threaded rod 703 is slidably installed on the track groove 701, and the slide rail connector 6 is fixedly connected to the movable block 704. By rotating the handle 702 to drive the threaded rod 703 to rotate, the movable block 704 moves horizontally and the slide rail connector 6 moves, thereby realizing the horizontal position adjustment of the handheld Tesla meter.

[0036] like Figure 5 As shown, a longitudinal adjustment mechanism 5 for adjusting the movement of the magnet placement device 4 is installed on the top of the displacement stage fixture 8, and the movement direction of the magnet placement device 4 is spatially perpendicular to the movement direction of the fixed component; the longitudinal adjustment mechanism 5 includes a base 501 fixed on the displacement stage fixture 8, a motion platform 502 is slidably installed on the top of the base 501, a positioning block 503 is fixed on one side of the base 501, an adjustment rod 504 is threadedly installed on the positioning block 503, a linkage block 505 is fixed on the bottom of the motion platform 502, and one end of the adjustment rod 504 passes through the positioning block 503 and abuts on the linkage block 505. The adjustment rod 504 is manually rotated to make the adjustment rod 504 move longitudinally, and the linkage block 505 moves longitudinally to make the motion platform 502 move longitudinally, so as to achieve longitudinal position adjustment of the magnet on the magnet placement device 4.

[0037] Furthermore, in this embodiment, a height adjustment mechanism 9 is also included, which is installed on the longitudinal adjustment mechanism for adjusting the height of the magnet placer 4; the height adjustment mechanism 9 includes a track plate 901 fixed to the top of the moving platform 502, a lifting plate 902 is slidably installed on one side of the track plate 901, a lifting platform 903 is fixedly installed on the top of the lifting plate 902, a rectangular block 904 is fixed on the top of the moving platform 502, an operating rod 905 is threadedly installed on the rectangular block 904, a right-angle block 907 is rotatably installed on one side of the lifting plate 902 close to the rectangular block 904, one end of the operating rod 905 passes through the rectangular block 904 and abuts against one side of the right-angle block 907, a column 906 is fixed at the bottom of the lifting platform 903, and the bottom of the column 906 presses against the other side of the right-angle block 907. The operating rod 905 is manually rotated to move and push the right-angle block 907 to rotate, and the right-angle block 907 pushes the column 906 to rise so that the height of the lifting platform 903 is adjusted.

[0038] It is worth noting that a water cooling system is installed in the magnet placement device 4, and the water cooling system includes a cooling water pipeline installed in the magnet placement device, and the cooling water circulates through an external water source to ensure that the magnet to be measured maintains a constant temperature during long-term measurement. The cooling water pipeline is provided with a valve, and the opening size of the valve is adjusted to adjust the water flow rate, the water flow rate and the cooling intensity to adapt to the measurement requirements under different temperature environments, thereby improving the measurement accuracy.

[0039] The magnet placer 4 is a detachable and replaceable modular design. Users can quickly replace magnet modules of different sizes or shapes according to actual needs. Through the modular structure, the magnet can be easily adjusted to meet different measurement requirements. The magnet module is connected to the lifting platform 903 through a standardized buckle or screw structure, and the interlocking method ensures that high-precision alignment is maintained after replacement. The magnet module is made of oxygen-free copper or aluminum alloy to reduce electromagnetic interference and increase the durability of the equipment.

[0040] It is worth noting that the translation stage holder 8, the handheld Tesla meter handle holder 2, the handheld Tesla meter probe holder 3, the slide rail connector 6, and the magnet placer 4 are all made of aluminum alloy or oxygen-free copper or non-metallic materials, which effectively reduces the impact of the surrounding materials on the measurement accuracy.

[0041] Working principle: Place the magnet through the magnet groove on the magnet placer 4, fix the Tesla meter handle through the handheld Tesla meter handle holder 2, place the handheld Tesla meter handle 204 in the placement groove 209, rotate the M4 bolt 210 to thread the inner wall of the other side of the placement groove 209, and fix the handheld Tesla meter handle 204. Drive the locking block 302 to rotate and move by rotating the M3 bolt 306, and fix the handheld Tesla meter probe 203 by bringing the two locking blocks 302 close to each other. Screw the M3 bolt 306 into the side M3 cup head screw hole 304 at different heights to adjust the clamping height of the handheld Tesla meter probe 203.

[0042] The handle 702 is rotated to drive the threaded rod 703 to rotate, so that the movable block 704 moves laterally and the slide rail connector 6 moves, thereby realizing the lateral position adjustment of the handheld Tesla meter;

[0043] By manually rotating the adjusting rod 504, the adjusting rod 504 is displaced longitudinally, and the linkage block 505 is pressed against the longitudinal movement to make the motion platform 502 move longitudinally, so as to adjust the longitudinal position of the magnet on the magnet placer 4. By manually rotating the operating rod 905, the operating rod 905 is rotated and moved at the same time to push the right-angle block 907 to rotate. The right-angle block 907 pushes the column 906 to rise so that the height of the lifting platform 903 is adjusted. Through the above adjustment, the probe position is stably positioned, which effectively avoids the measurement error of the conventional handheld Tesla meter caused by the shaking of the experimenter's hand, and improves the measurement accuracy.

[0044] Furthermore, it can be used in combination with multiple magnets, which is suitable for studying the size and distribution of superimposed magnetic fields, realizing continuous measurement along the direction of magnet arrangement, and ensuring the accuracy of measurement.

[0045] The above specific embodiments are only several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A device for accurately measuring magnetic field strength by combining a multi-layer displacement stage with a Tesla meter, comprising an optical plate base (1), two displacement stage fixtures (8) are fixed on the top of the optical plate base (1), and two magnet placement devices (4) for mounting magnets are arranged above the displacement stage fixtures (8), characterized in that: Also includes: A fixing component, located above the optical plate base (1) and used for fixing the handheld Tesla meter; A hand-cranked slide rail (7) installed on the top of the optical plate base (1) for adjusting the horizontal position of the fixed component; A longitudinal adjustment mechanism (5) is installed on the top of the translation stage fixture (8) and is used to adjust the movement of the magnet placement device (4), and the movement direction of the magnet placement device (4) is spatially perpendicular to the movement direction of the fixing component; A height adjustment mechanism (9) mounted on the longitudinal adjustment mechanism and used for adjusting the height of the magnet placement device (4); A water cooling system is installed in the magnet placement device (4).

2. The device for accurately measuring magnetic field strength by combining a multi-layer translation stage with a Tesla meter according to claim 1, characterized in that: The fixing assembly comprises a slide rail connector (6) that moves horizontally through a hand-cranked slide rail (7), and a handheld Tesla meter handle fixture (2) and a handheld Tesla meter probe fixture (3) are installed on the top of the slide rail connector (6).

3. The device for accurately measuring magnetic field strength by combining a multi-layer translation stage with a Tesla meter according to claim 2, characterized in that: The handheld Tesla meter handle holder (2) comprises a fixing pile (207) fixed on the slide rail connector (6), the fixing pile (207) is provided with an M8 threaded hole (208), an M8 full-thread screw (206) is internally threadedly installed in the M8 threaded hole (208), a locking head (201) is threadedly connected to the top of the M8 full-thread screw (206), a placement groove (209) is provided at the top of the locking head (201), a handheld Tesla meter handle (204) is provided in the placement groove (209), a handheld Tesla meter probe (203) is installed at one end of the handheld Tesla meter handle (204), an M4 cup head threaded locking hole (202) is provided on one side of the locking head (201), an M4 bolt (210) is threadedly installed on the M4 cup head threaded locking hole (202), and one end of the M4 bolt (210) is threadedly connected to the inner wall of one side of the placement groove (209).

4. The device for accurately measuring magnetic field strength by combining a multi-layer translation stage with a Tesla meter according to claim 3, characterized in that: The handheld Tesla meter probe holder (3) comprises two fixing piles (301) fixed to the top of the slide rail connector (6); the fixing piles (301) are provided with a plurality of side M3 cup head screw holes (304) equidistantly arranged along the length direction thereof; the side M3 cup head screw holes (304) are threadedly mounted with M3 bolts (306); one end of the M3 bolts (306) is fixedly connected with a locking block (302); the handheld Tesla meter probe (203) is located between the two locking blocks (302); and a Teflon tape protective layer (303) is adhered to the top and bottom of the handheld Tesla meter probe (203).

5. The device for accurately measuring magnetic field strength by combining a multi-layer translation stage with a Tesla meter according to claim 1, characterized in that: A handheld Teslameter chip (305) is installed at one end of the handheld Teslameter probe (203).

6. The device for accurately measuring magnetic field strength by combining a multi-layer translation stage with a Tesla meter according to claim 2, characterized in that: The hand-cranked slide rail (7) comprises a track groove (701), a threaded rod (703) is rotatably mounted in the track groove (701), a handle (702) fixed to the threaded rod (703) is rotatably mounted at one end of the track groove (701), a movable block (704) threadedly connected to the threaded rod (703) is slidably mounted on the track groove (701), and a slide rail connector (6) is fixedly connected to the movable block (704).

7. The device for accurately measuring magnetic field strength by combining a multi-layer translation stage with a Tesla meter according to claim 1, characterized in that: The water cooling system comprises a cooling water pipeline installed in the magnet placement device, and the cooling water circulates through an external water source.

8. The device for accurately measuring magnetic field strength by combining a multi-layer translation stage with a Tesla meter according to claim 1, characterized in that: The longitudinal adjustment mechanism (5) comprises a base (501) fixed on a displacement stage fixture (8); a motion platform (502) is slidably mounted on the top of the base (501); a positioning block (503) is fixed on one side of the base (501); an adjustment rod (504) is threadedly mounted on the positioning block (503); a linkage block (505) is fixed on the bottom of the motion platform (502); one end of the adjustment rod (504) passes through the positioning block (503) and abuts against the linkage block (505).

9. The device for accurately measuring magnetic field strength by combining a multi-layer translation stage with a Tesla meter according to claim 8, characterized in that: The height adjustment mechanism (9) comprises a track plate (901) fixed to the top of the moving platform (502); a lifting plate (902) is slidably mounted on one side of the track plate (901); a lifting platform (903) is fixedly mounted on the top of the lifting plate (902); a rectangular block (904) is fixed on the top of the moving platform (502); an operating rod (905) is threadedly mounted on the rectangular block (904); a right-angle block (907) is rotatably mounted on one side of the lifting plate (902) close to the rectangular block (904); one end of the operating rod (905) passes through the rectangular block (904) and abuts against one side of the right-angle block (907); a column (906) is fixed at the bottom of the lifting platform (903); the bottom of the column (906) abuts against the other side of the right-angle block (907).

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