CN110082668B - Element fixing device for Helmholtz coil magnetic field test - Google Patents
Element fixing device for Helmholtz coil magnetic field test Download PDFInfo
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- CN110082668B CN110082668B CN201910434678.3A CN201910434678A CN110082668B CN 110082668 B CN110082668 B CN 110082668B CN 201910434678 A CN201910434678 A CN 201910434678A CN 110082668 B CN110082668 B CN 110082668B
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- adjusting
- helmholtz coil
- seat
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- 238000012360 testing method Methods 0.000 title claims abstract description 60
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract 2
- UFNIBRDIUNVOMX-UHFFFAOYSA-N 2,4'-dichlorobiphenyl Chemical compound C1=CC(Cl)=CC=C1C1=CC=CC=C1Cl UFNIBRDIUNVOMX-UHFFFAOYSA-N 0.000 description 12
- 238000009434 installation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/2806—Apparatus therefor, e.g. test stations, drivers, analysers, conveyors
- G01R31/2808—Holding, conveying or contacting devices, e.g. test adapters, edge connectors, extender boards
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/302—Contactless testing
- G01R31/315—Contactless testing by inductive methods
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The invention discloses an element fixing device for a Helmholtz coil magnetic field test, which comprises a base, a Helmholtz coil, a sliding seat, a height adjusting rod, an adjusting seat, a placement adjusting slide plate and a test plate clamping mechanism, wherein the base is provided with a clamping mechanism; the helmholtz coil is installed on the coil mount, and the coil mount is fixed on the base, and the sliding seat moves on the slip track on the base, and the altitude mixture control pole setting is on the sliding seat, and the regulation seat is installed on the altitude mixture control pole, and test board fixture can be put the thing and adjust the slide and remove, puts the thing and adjust the slide and fix on the regulation seat. The invention has simple structure and reasonable design, can accurately position the element to be detected, and is convenient for quickly disassembling the element to be detected.
Description
Technical Field
The invention relates to the technical field of magnetic field testing instruments, in particular to an element fixing device for a Helmholtz coil magnetic field test.
Background
A helmholtz coil is a device that produces a uniform magnetic field over a small area. Because the Helmholtz coil has an open property, other instruments can be easily put in or out, and visual observation can be directly carried out, the Helmholtz coil is a device commonly used for physical experiments. Named as Helman Fenghai MoHotz, a physical scholars of Germany. The principle of magnetic field generation is that excitation current is introduced into the coils, so that a nearly uniform signal magnetic field is generated in two opposite coils. The magnitude and frequency of the magnetic field are determined by the excitation current strength and the current frequency.
The existing helmholtz coil is provided with a placing table for placing a test element at the set geometric center, but in the existing test, particularly in the test of a magnetic sensor chip, the sensor chip is usually required to be provided with a corresponding PCB circuit and related interfaces for matching test, the single element placing table cannot meet the requirement of accurate fixing of a test board, and meanwhile, the fixedly arranged element placing table is difficult to install or detach the test element, so that great trouble is caused to a tester.
The invention patent with the application number of 200720106451.9 and the name of three-dimensional Helmholtz coil magnetic field tester provides a movable testing mechanism which is convenient for testing the distribution rule of a magnetic field in the Helmholtz coil space, but the fixation of a testing element cannot be ensured, so that the problem is difficult to solve.
Disclosure of Invention
In order to solve the above problems, the present invention provides an element fixing device for a helmholtz coil magnetic field test, which facilitates rapid mounting or dismounting of a test element and is capable of precisely fixing the test element.
In order to achieve the above object, the present invention is realized by the following technical scheme:
the invention relates to an element fixing device for a Helmholtz coil magnetic field test, which comprises a base, a Helmholtz coil, a sliding seat, a height adjusting rod, an adjusting seat, a placement adjusting slide plate and a test plate clamping mechanism, wherein the base is provided with a sliding seat;
the upper surface of the base is equidistantly provided with a plurality of mounting crossbearers, the sliding rail is fixed above the plurality of mounting crossbearers, the sliding seat is arranged above the sliding rail and can slide freely on the sliding rail, the height adjusting rod is fixedly connected to the sliding seat, the adjusting seat is arranged on the height adjusting rod, and the object placing adjusting sliding plate is vertically fixed on the side surface of the adjusting seat;
the coil fixing frame is fixed on the base at the front side of the sliding track, and the Helmholtz coil is arranged on the coil fixing frame;
the adjusting seat is provided with an adjusting rod fixing hole through which the height adjusting rod passes, the side surfaces of the front side and the rear side of the adjusting seat are symmetrically provided with fixing knobs, and the other ends of the fixing knobs are connected with screwing fixing rods;
the front side surface and the rear side surface of the object placing adjusting slide plate are respectively provided with a slide groove, and the test plate clamping mechanism is connected above the slide grooves;
the test board clamping mechanism comprises a U-shaped installation rack, two symmetrical movable sliding blocks embedded in a sliding groove are evenly arranged at the bottom end of the U-shaped installation rack, two baffle adjusting plates are symmetrically arranged on the left side and the right side of the U-shaped installation rack, each baffle adjusting plate is connected through a sliding connecting rod, a vertical sliding groove is formed in the joint of the sliding connecting rod and the U-shaped installation rack, a lower clamping plate is connected to the other end of each sliding connecting rod, an upper clamping plate is arranged at the upper end of the lower clamping plate, screws are screwed between the upper clamping plate and the lower clamping plate to penetrate and connect the upper clamping plate, two fixing threaded rods penetrate and are fixed on each baffle adjusting plate, two rows of even fixing holes used for installing the fixing threaded rods are formed in the side face of the U-shaped installation rack, and screwing caps are arranged at the other end of each fixing threaded rod.
The invention further improves that: a calibration line is arranged at the horizontal and transverse central axis of the upper surface of the object-placing adjusting slide plate.
The invention further improves that: and a layer of rubber cushion blocks are arranged on the surfaces of the upper clamping plate and the lower clamping plate, which are opposite.
The invention further improves that: and the vertical plates on two sides of the U-shaped mounting frame are respectively provided with a graduated scale for marking the screwing position of the screwing cap.
The invention further improves that: a friction thread layer is arranged on the outer surface of the screwing cap.
The invention further improves that: the upper surface of the adjusting seat is provided with an angle scale disc which is aligned with the calibration line.
The beneficial effects of the invention are as follows: the sliding seat can move on the sliding track, the adjusting seat is arranged on the height adjusting rod, the object placing adjusting sliding plate is fixed on the adjusting seat, the height of the object placing adjusting sliding plate can be adjusted by changing the position of the adjusting seat on the height adjusting rod, the left and right positions of the object placing adjusting sliding plate can be adjusted by adjusting the position of the sliding seat, so that the clamping mechanism of the test board can be adjusted in the horizontal direction and the vertical direction, the PCB to be tested is fixed on the clamping mechanism of the test board, the Helmholtz coil test point of the PCB to be tested can be accurately positioned, and the installation and the disassembly of the PCB to be tested are facilitated. In addition, the PCB to be tested is accurately clamped by the test board clamping mechanism, the problem that the traditional Helmholtz coil test board is difficult to perform relevant test experiments without the clamping mechanism is solved, and the positioning of the test board clamping mechanism greatly improves the accuracy of the test experiments.
The invention has simple structure and reasonable design, can accurately position the element to be detected, and is convenient for quickly disassembling the element to be detected.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a side view of a test plate clamping mechanism of the present invention;
FIG. 3 is a schematic top view of the clamping mechanism of the test board of the present invention;
FIG. 4 is a schematic view of the adjustment of the clamp spacing of the slide connecting rod in the test plate clamping mechanism of the present invention;
FIG. 5 is a side view of the U-shaped mounting bracket of the present invention;
fig. 6 is a top view of the adjustment seat of the present invention.
Wherein: the device comprises a 1-base, a 101-mounting cross frame, a 102-sliding track, a 2-Helmholtz coil, a 201-coil fixing frame, a 3-sliding seat, a 4-height adjusting rod, a 5-adjusting seat, a 501-fixing knob, a 502-adjusting rod fixing hole, a 503-screwing fixing rod, a 504-angle dial, a 6-object-placing adjusting slide plate, a 601-sliding groove, a 602-calibration line, a 7-test plate clamping mechanism, a 701-U-shaped mounting frame, a 702-moving slide block, a 703-upper clamping plate, a 704-lower clamping plate, a 705-screwing screw, a 706-rubber cushion block, a 707-sliding connecting rod, a 708-baffle adjusting plate, 709-fixing threaded rods, 710-screwing caps, 711-fixing holes, 712-vertical sliding grooves, 713-scale scales, 714-friction threads and 8-PCB to be tested.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-6, the invention is an element fixing device for a helmholtz coil magnetic field test, which comprises a base 1, a helmholtz coil 2, a sliding seat 3, a height adjusting rod 4, an adjusting seat 5, a placement adjusting slide plate 6 and a test plate clamping mechanism 7;
the upper surface of the base 1 is equidistantly provided with a plurality of mounting crossbars 101, a sliding rail 102 is fixed above the plurality of mounting crossbars 101, a sliding seat 3 is arranged above the sliding rail 102 and can slide freely on the sliding rail 102, a height adjusting rod 4 is fixedly connected to the sliding seat 3, an adjusting seat 5 is arranged on the height adjusting rod 4, a placement adjusting slide plate 6 is vertically fixed on the side surface of the adjusting seat 5, the placement adjusting slide plate 6 provides a supporting platform for a test plate clamping mechanism 7, the sliding seat 3 can quickly adjust the position of the whole placement adjusting slide plate 6 at a test point of a Helmholtz coil 2, the front side surface and the rear side surface of the placement adjusting slide plate 6 are both provided with sliding grooves 601, a calibration line 602 is arranged at the horizontal central axis of the upper surface of the placement adjusting slide plate 6, the test plate clamping mechanism 7 is fixed on the sliding grooves 601, and the test plate clamping mechanism 7 can be ensured to be adjusted along the sliding grooves 601 on the placement adjusting slide plate 6;
the coil fixing frame 201 is fixed on a base at the front side of the sliding rail 102, and the Helmholtz coil 2 is arranged on the coil fixing frame 201;
the adjusting seat 5 is provided with an adjusting rod fixing hole 502 through which the height adjusting rod 4 passes, the side faces of the front side and the rear side of the adjusting seat 5 are symmetrically provided with fixing knobs 501, the other ends of the fixing knobs 501 are connected with screwing fixing rods 503, the upper surface of the adjusting seat 5 is provided with an angle gauge disc 504 opposite to a calibration line 602, the calibration line 602 can be matched with the angle gauge disc 504 on the adjusting seat 5 to accurately position the accurate angle of the PCB 8 to be tested at the test point of the Helmholtz coil 2, and the test result is ensured to be more accurate;
when adjusting the adjusting seat 5, the fixing knob 501 is rotated first to separate the screwing fixing rod 503 from the surface of the height adjusting rod 4, at this time, the adjusting seat 5 can move freely up and down on the surface of the height adjusting rod 4, the surface of the height adjusting rod 4 is provided with scale marks, the height of the adjusting seat 5 can be adjusted approximately, after the adjusting is finished, the fixing knob 501 is rotated again to tightly attach the screwing fixing rod 503 to the height adjusting rod 4, at this time, the adjusting seat 5 is fixed again, and the adjusting process is completed.
The test board fixture 7 includes U-shaped mounting bracket 701, the bottom of U-shaped mounting bracket 701 evenly is provided with two bilateral symmetry's removal slider 702 of inlaying in spout 601, the equal symmetry in both sides limit of U-shaped mounting bracket 701 is provided with two and separates fender regulating plate 708, every keeps off regulating plate 708 and all is connected through the sliding connection pole, the junction of sliding connection pole 707 and U-shaped mounting bracket 701 is provided with vertical sliding groove 712, the other end of every sliding connection pole 707 is connected with lower plate 704, the upper end of lower plate 704 is provided with punch holder 703, pass through screw 705 through connection between punch holder 703 and the lower plate 704, all be provided with one deck rubber cushion 706 on the surface that punch holder 703 is relative with lower plate 704, rubber cushion 706 can effectively avoid punch holder 703 and lower plate 704 to damage PCB 8 that awaits measuring when fixed PCB board 8 that awaits measuring, the last run through of every keeps off regulating plate 708 is fixed with two fixed threaded rods 709, the side of U-shaped mounting bracket 701 is provided with two rows of even fixed orifices that are used for installing fixed 709, the other end of every fixed threaded rod 709 all is provided with punch holder 704, the vertical punch holder 710 of punch holder 710, the punch holder 710 is provided with the cap 710 on the punch holder 710 is screwed, the punch holder 710 is screwed with the friction cap 710 is screwed down with the friction cap 710, the friction cap 710 is screwed down, the friction cap is screwed down is provided with the friction cap 710, the friction cap is screwed down, the friction cap is arranged on the friction cap is easy to the friction cap is put, and the friction cap is easy.
Before testing, the PCB 8 to be tested is firstly fixed on the test board clamping mechanism 7, the height and the angle of the PCB 8 to be tested on the height adjusting rod 4 are adjusted by utilizing the adjusting seat 5, the sliding seat 3 is moved after the adjustment is finished to adjust the test position of the PCB 8 to be tested in the Helmholtz coil 2, the Helmholtz coil 2 is electrified, and the test interface of the PCB 8 to be tested is connected to corresponding equipment. The whole sliding seat 3 is moved out in the disassembly process, then the PCB 8 to be tested is taken out, the whole installation process and the disassembly process are convenient and quick, and most importantly, the PCB 8 to be tested can be completely kept fixed during the test in the Helmholtz coil 2, so that the test precision is greatly improved.
Before fixing the PCB 8 to be tested, the width of the clamp needs to be adjusted, and the specific adjustment process is as follows: the sliding connecting rod 707 is drawn, the sliding connecting rod 707 is utilized to carry the lower clamping plate 704 to move to the edge of the U-shaped mounting frame 701, then the PCB 8 to be tested is placed in the U-shaped mounting frame, and the sliding connecting rods 707 on the left side and the right side are slowly adjusted, so that the PCB 8 to be tested falls into the clamps on the two sides. Next, the screwing screw 705 is turned to enable the upper clamping plate 703 and the lower clamping plate 704 to be meshed together to clamp the PCB 8 to be tested, after clamping is completed, the sliding connecting rod 707 is utilized to move up and down in the vertical sliding groove 712, a proper position is selected, and at the moment, the fixing threaded rod 719 is rotated to enter the fixing hole 711 for fixing, and the height adjustment is completed.
It should be noted that, in order to avoid the influence of each element on the magnetic field generated by the helmholtz coil 2, the whole device is made of plastic or non-magnetic materials, such as aluminum, so as to ensure that the fixing device cannot influence the test result, and further ensure the measurement accuracy.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. A component fixing device for helmholtz coil magnetic field test, its characterized in that: the device comprises a base (1), a Helmholtz coil (2), a sliding seat (3), a height adjusting rod (4), an adjusting seat (5), a storage adjusting slide plate (6) and a test plate clamping mechanism (7);
the upper surface of the base (1) is provided with a plurality of mounting crossbearers (101) at equal intervals, a sliding rail (102) is fixed above the mounting crossbearers (101), a sliding seat (3) is arranged above the sliding rail (102) and can slide freely on the sliding rail (102), a height adjusting rod (4) is fixedly connected to the sliding seat (3), an adjusting seat (5) is installed on the height adjusting rod (4), and a storage adjusting sliding plate (6) is vertically fixed on the side surface of the adjusting seat (5);
the coil fixing frame (201) is fixed on the base at the front side of the sliding track (102), and the Helmholtz coil (2) is arranged on the coil fixing frame (201);
the adjusting seat (5) is provided with an adjusting rod fixing hole (502) for the height adjusting rod (4) to pass through, the side faces of the front side and the rear side of the adjusting seat (5) are symmetrically provided with fixing knobs (501), and the other end of each fixing knob (501) is connected with a screwing fixing rod (503);
the front side and the rear side of the object placing adjusting sliding plate (6) are respectively provided with a sliding groove (601), and the test plate clamping mechanism (7) is connected above the sliding grooves (601);
test board fixture (7) are including U-shaped mounting bracket (701), the bottom of U-shaped mounting bracket (701) evenly is provided with two bilateral symmetry inlay removal slider (702) in spout (601), the equal symmetry in both sides limit of U-shaped mounting bracket (701) is provided with two and separates fender regulating plate (708), every separate fender regulating plate (708) all to be connected through the sliding connection pole, sliding connection pole (707) with the junction of U-shaped mounting bracket (701) is provided with vertical sliding groove (712), every the other end of sliding connection pole (707) is connected with lower plate (704), the upper end of lower plate (704) is provided with punch holder (703), punch holder (703) with through screw (705) through connection between lower plate (704), every it is fixed with two fixed threaded rod (709) to separate on baffle regulating plate (708), the side of U-shaped mounting bracket (708) is provided with two rows of even fixed orifices (710) that are used for installing fixed threaded rod (709), every other end (710) all are provided with screw cap (710).
2. A component mounting apparatus for use in helmholtz coil magnetic field testing as set forth in claim 1 wherein: a calibration line (602) is arranged at the horizontal and transverse central axis of the upper surface of the object placing adjusting slide plate (6).
3. A component mounting apparatus for use in helmholtz coil magnetic field testing as set forth in claim 1 wherein: a layer of rubber cushion blocks (706) are arranged on the surface of the upper clamping plate (703) opposite to the surface of the lower clamping plate (704).
4. A component mounting apparatus for use in helmholtz coil magnetic field testing as set forth in claim 1 wherein: the vertical plates on two sides of the U-shaped mounting frame (701) are respectively provided with a graduated scale (713) for marking the screwing position of the screwing cap (710).
5. A component mounting apparatus for use in a helmholtz coil magnetic field test as set forth in claim 1 wherein: a friction thread (714) is provided on the outer surface of the screw cap (710).
6. A component mounting apparatus for use in helmholtz coil magnetic field testing as set forth in claim 2 wherein: the upper surface of the adjusting seat (5) is provided with an angle gauge (504) opposite to the gauge line (602).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910434678.3A CN110082668B (en) | 2019-05-23 | 2019-05-23 | Element fixing device for Helmholtz coil magnetic field test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910434678.3A CN110082668B (en) | 2019-05-23 | 2019-05-23 | Element fixing device for Helmholtz coil magnetic field test |
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| Publication Number | Publication Date |
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| CN110082668A CN110082668A (en) | 2019-08-02 |
| CN110082668B true CN110082668B (en) | 2024-01-30 |
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| CN201910434678.3A Active CN110082668B (en) | 2019-05-23 | 2019-05-23 | Element fixing device for Helmholtz coil magnetic field test |
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| CN110824393A (en) * | 2019-09-04 | 2020-02-21 | 横店集团东磁股份有限公司 | Magnetic flux measuring device and measuring method thereof |
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| CN111564092A (en) * | 2020-05-26 | 2020-08-21 | 湖北第二师范学院 | Spatial magnetic field plotter capable of displaying measurement information |
| CN112213677A (en) * | 2020-10-12 | 2021-01-12 | 湘潭大学 | Giant magnetoresistance sensor performance testing device |
| CN112505448B (en) * | 2020-11-20 | 2022-05-20 | 东北大学 | Multi-field coupling type microwave performance test platform for thin film material |
| CN113030829A (en) * | 2021-03-25 | 2021-06-25 | 河南省计量科学研究院 | Multifunctional alternating magnetometer calibrating device |
| CN115876689B (en) * | 2022-12-30 | 2024-04-05 | 浙江京华激光科技股份有限公司 | Stripping performance detection equipment and stripping detection method |
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