CN108344957B - Novel magnetic field measuring instrument - Google Patents
Novel magnetic field measuring instrument Download PDFInfo
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- CN108344957B CN108344957B CN201810172702.6A CN201810172702A CN108344957B CN 108344957 B CN108344957 B CN 108344957B CN 201810172702 A CN201810172702 A CN 201810172702A CN 108344957 B CN108344957 B CN 108344957B
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- groove
- magnetic field
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- helmholtz coil
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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
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
- G01R33/07—Hall effect devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Measuring Magnetic Variables (AREA)
Abstract
The invention relates to a novel magnetic field measuring instrument, which comprises a base, a groove and a measuring plate, wherein a rectangular through concave hole is formed in the surface of the base, four uniformly distributed round holes are formed in one end of the concave hole, and supporting feet for supporting the measuring plate are respectively arranged at two ends of the base; the grooves are divided into a first groove and a second groove; the first grooves are arranged in a plurality, the bottom surface of each first groove is provided with a circular through hole, the bottom surface of each second groove is provided with two circular through holes, and the distance between the two circular through holes on the bottom surface of each second groove is equal to the distance between any two adjacent round holes in the four round holes on the base; the measuring plate is connected to the supporting feet on two sides of the base. The invention can measure the magnetic field in the whole space near the single current-carrying round coil, can detect the distribution of the space magnetic field formed by multiple combinations of the two current-carrying round coils, and can finish the measurement of the composite magnetic field with different angles and different intervals between the two same current-carrying round coils, thereby realizing the abundant, flexible and various measurement.
Description
Technical Field
The invention relates to a novel magnetic field measuring instrument.
Background
The existing magnetic field measuring instrument in universities can only measure the magnetic field near the central axis plane of a single circular current-carrying coil or the uniform magnetic field of the central plane of a Helmholtz coil, and the detectable area is fixed and can not be randomly regulated in a maneuvering way, so that the exploration and understanding of students on the distribution of the magnetic field in the whole space are greatly limited.
Disclosure of Invention
In view of the foregoing, it is an object of the present invention to provide a novel magnetic field measuring instrument to solve at least one of the above problems.
The technical scheme adopted for realizing the purpose of the invention is as follows: the novel magnetic field measuring instrument comprises a base, a groove and a measuring plate, wherein a rectangular concave hole which penetrates through the surface of the base is formed in the surface of the base, four uniformly distributed round holes are formed in one end of the concave hole, and supporting feet for supporting the measuring plate are respectively arranged at two ends of the base; the grooves are divided into a first groove and a second groove; the first grooves are arranged in a plurality, the bottom surface of each first groove is provided with a circular through hole, the bottom surface of each second groove is provided with two circular through holes, and the distance between the two circular through holes on the bottom surface of each second groove is equal to the distance between any two adjacent round holes in the four round holes on the base; the measuring plate is connected to the supporting feet on two sides of the base.
Further, the circular through hole on the bottom surface of the first groove is connected to the concave hole on the surface of the base through a movable bolt.
Further, the round through hole on the bottom surface of the second groove is connected with any two adjacent round holes on the base through bolts.
Further, the supporting legs are provided with clamping grooves for clamping the measuring plates.
Further, the width of the clamping groove is larger than that of the side rail.
Further, the distance from the bottom of the clamping groove to the bottom surface is larger than the height of the groove.
Furthermore, the measuring plate is in an inverted T shape, and a plurality of round holes which are regularly arranged are formed in the surface of the measuring plate.
Further, the base and the measuring plate are made of transparent sub-force plates.
Further, the bottom surface of base be equipped with four callus on sole.
Further, the foot pads are respectively positioned at four corner edges of the base.
Further, a plurality of Helmholtz coils, an integrated Hall sensor and a Helmholtz coil magnetic field experiment instrument are also included.
Further, the Helmholtz coil is connected with an integrated Hall sensor; the integrated Hall sensor is connected with a Helmholtz coil magnetic field experimental instrument.
The invention has the beneficial effects that: the measuring instrument adopts the acrylic transparent plate, has attractive appearance design, low consumption, exquisite and simple structure, independent parts, and can be assembled and disassembled, and can be reused only by replacing damaged parts once the damaged parts are damaged, thereby prolonging the service life of the instrument and saving the cost. The instrument occupies small space, can be disassembled when not in use, is integrated into zero, is stored in a classified mode, and greatly saves the storage space of the instrument. The experimental instrument can fully exert the flexible characteristic of the instrument, namely, the magnetic field in the whole space near a single current-carrying round coil can be measured, the distribution of the space magnetic field formed by multiple combinations of two current-carrying round coils can be detected, the measurement of the composite magnetic field with different angles and different intervals between two identical current-carrying round coils is completed, and the measurement is rich, flexible and various.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic diagram of a base plate structure.
Fig. 3 is a schematic diagram of a groove structure.
Fig. 4 is a cross-sectional view of a second groove.
Fig. 5 is a cross-sectional view of a first groove.
In the figure, a 1-Helmholtz coil, a 2-measuring plate and a 3-second groove. 4-first groove, 5-bottom plate, 6-shrinkage pool, 7-round hole, 8-draw-in groove, 9-supporting legs, 10-callus on sole, 11-recess, 12-through-hole.
Detailed Description
The invention will be further described with reference to the drawings and the specific examples.
Fig. 1, 2, 3, 4 and 5 schematically show the structure of a novel magnetic field measuring instrument according to an embodiment of the present invention.
As shown in fig. 1, 2, 3, 4 and 5, the novel magnetic field measuring instrument comprises a base, a groove and a measuring plate, wherein a rectangular concave hole is formed in the surface of the base, four round holes are uniformly distributed in one end of the concave hole, and supporting feet for supporting the measuring plate are respectively arranged at two ends of the base; the grooves are divided into a first groove and a second groove; the first grooves are arranged in a plurality, the bottom surface of each first groove is provided with a circular through hole, the bottom surface of each second groove is provided with two circular through holes, and the distance between the two circular through holes on the bottom surface of each second groove is equal to the distance between any two adjacent round holes in the four round holes on the base; the measuring plate is connected to the supporting feet on two sides of the base.
As shown in fig. 1, 3, 4 and 5, the circular through hole on the bottom surface of the first groove is connected to the concave hole on the surface of the base through a movable bolt, so that the first groove can slide or rotate in the concave hole of the base, and a plurality of first grooves are formed, so that the plurality of first grooves can be connected in the concave hole of the base through bolts respectively.
As shown in fig. 1, 3, 4 and 5, the circular through hole on the bottom surface of the second groove is connected with any two adjacent holes of the four circular holes on the base through bolts.
As shown in fig. 1 and 2, the supporting leg is provided with a clamping groove for clamping the measuring plate, so that the measuring plate is conveniently clamped on the supporting leg, and the height of the supporting leg is greater than that of the groove, so that the measuring plate is suspended.
As shown in fig. 1, 2, 3, 4 and 5, the device further comprises a plurality of helmholtz coils, an integrated hall sensor and a helmholtz coil magnetic field experiment instrument.
As shown in fig. 1, 2, 3, 4 and 5, the helmholtz coil is connected with an integrated hall sensor; the integrated Hall sensor is connected with a Helmholtz coil magnetic field experimental instrument.
As shown in fig. 1, 2, 3, 4 and 5, the helmholtz coil is sleeved on the measuring plate, and the lower end of the helmholtz coil is positioned in a corresponding groove in the grooves connected on the base.
As shown in fig. 1, 2, 3, 4 and 5, the measuring plate is inverted T-shaped, so that the helmholtz coil can only be sleeved from one end of the measuring plate, and the helmholtz coil is prevented from moving outside the measuring plate from the other end
As shown in fig. 1, 2, 3, 4 and 5, the base and the measuring plate are made of transparent sub-force plates, so that the whole weight of the device is reduced, and the transparent sub-force plates are convenient for a user to observe.
As shown in fig. 1, 2, 3, 4 and 5, four foot pads are arranged on the bottom surface of the base, and the foot pads are respectively located at four corner edges of the base.
When the invention is used, as shown in fig. 1, 2, 3, 4 and 5, the first groove and the second groove are respectively connected on the concave hole and the round hole of the base through bolts, wherein the first groove is connected on the concave hole of the base through bolts, the second groove is connected on any two adjacent round holes in the four round holes of the base through bolts, the first Helmholtz coil and the second Helmholtz coil are sleeved on the measuring plate, the measuring plate is clamped in the clamping groove of the supporting leg after the Helmholtz coil is sleeved on the measuring plate, the position of the Helmholtz coil is adjusted, the first Helmholtz coil is positioned in the second groove, the second Helmholtz coil is positioned in the first groove, and the Helmholtz coil is electrified through the Helmholtz coil magnetic field experiment instrument, so that the Helmholtz coil generates a magnetic field.
As shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, when the magnetic field distribution of the whole space of the helmholtz coil is detected, the first groove and the second groove are respectively arranged in the concave hole and the round hole of the corresponding base, the first helmholtz coil and the second helmholtz coil are respectively clamped in the corresponding grooves, a specific voltage and a specific current are input to the helmholtz coil through a helmholtz coil magnetic field experiment instrument, the first groove is moved, the distance between the helmholtz coil in the first groove and the helmholtz coil in the second groove is the distance of the radius of the helmholtz coil, the integrated hall sensor is placed in the round hole of the measuring plate at the middle position of the helmholtz coil to be detected, the integrated hall sensor is rotated, and the maximum value of the position displayed on the voltmeter on the helmholtz coil magnetic field experiment instrument is recorded.
As shown in fig. 1, 2, 3, 4 and 5, when measuring the magnetic field of a single helmholtz coil, selecting any one of the helmholtz coils, placing the helmholtz coil in the second groove, inputting specific voltage and current to the helmholtz coil through a helmholtz coil magnetic field experiment instrument, and placing an integrated hall sensor in a circular hole of a measuring plate at the middle position of the helmholtz coil to be measured, so that the magnetic field of the helmholtz coil is measured through the helmholtz coil magnetic field experiment instrument.
As shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, when the magnetic fields of two current-carrying coils or a plurality of current-carrying coils separated by a certain distance are separated by a certain distance, the second grooves are connected in the round holes of the bottom plate, the first grooves are connected in the concave holes of the bottom plate through bolts, the number of the first grooves is determined by the number of the helmholtz coils to be tested, if the number of the helmholtz coils to be tested is two or more, one of the first grooves is fixed in the round holes of the bottom plate through bolts, the other first grooves are uniformly connected in the concave holes of the bottom plate through bolts, and the distance between each first groove is regulated to be equidistantly distributed according to experimental requirements, so that the magnetic field between the helmholtz coils is measured through a helmholtz coil magnetic field experimental instrument and an integrated hall sensor.
As shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, when measuring the resultant magnetic field with two current-carrying coil planes at different angles, the first groove and the second groove are arranged in the concave hole and the round hole of the corresponding base, the first helmholtz coil and the second helmholtz coil are respectively clamped in the corresponding grooves, a specific voltage and a specific current are input to the helmholtz coils through the helmholtz coil magnetic field experiment instrument, the first groove connected in the concave hole of the base plate is rotated, and the first groove drives the first helmholtz coil to rotate, so that the first helmholtz coil and the second helmholtz coil form a certain included angle, and the magnetic field between the helmholtz coils is measured through the helmholtz coil magnetic field experiment instrument and the integrated hall sensor.
As shown in fig. 1, 2, 3, 4 and 5, the measuring plate is separated from the supporting legs when not in use, so that the measuring plate is taken out, and the measuring plate and the bottom plate are convenient to store or carry.
As shown in fig. 1, 2, 3, 4 and 5, the helmholtz coil magnetic field experimental apparatus adopts a helmholtz coil magnetic field experimental apparatus of model YQDH4501 or a helmholtz coil magnetic field experimental apparatus of model ZC 1536.
What has been described above is merely some embodiments of the present invention. It will be apparent to those skilled in the art that at least one of the modifications and improvements can be made without departing from the inventive concept.
Claims (8)
1. A novel magnetic field measuring instrument, characterized in that: the measuring device comprises a base, a groove and a measuring plate, wherein a rectangular concave hole which penetrates through is formed in the surface of the base, four round holes which are uniformly distributed are formed in one end of the concave hole, and supporting feet for supporting the measuring plate are respectively arranged at two ends of the base; the grooves are divided into a first groove and a second groove; the first grooves are arranged in a plurality, the bottom surface of each first groove is provided with a circular through hole, the bottom surface of each second groove is provided with two circular through holes, and the distance between the two circular through holes on the bottom surface of each second groove is equal to the distance between any two adjacent round holes in the four round holes on the base; the measuring plate is connected to the supporting feet at two sides of the base;
the circular through holes on the bottom surface of the first groove are connected to the concave holes on the surface of the base through movable bolts, so that the first groove can slide or rotate in the concave holes of the base, and a plurality of first grooves are formed, so that the first grooves can be connected in the concave holes of the base through bolts respectively;
the measuring plate is in an inverted T shape, and a plurality of round holes which are regularly arranged are formed in the surface of the measuring plate; the Helmholtz coil can only be sleeved from one end of the measuring plate, and the other end of the Helmholtz coil is prevented from moving out of the measuring plate;
the measuring instrument can detect the magnetic field distribution of the whole space of the Helmholtz coil; detecting the magnetic field of the single Helmholtz coil; detecting magnetic fields of two current-carrying coils at a certain distance or magnetic fields of a plurality of current-carrying coils at a certain distance; and detecting the composite magnetic fields with the planes of the two current-carrying coils at different angles.
2. The novel magnetic field measuring instrument according to claim 1, wherein: the round through hole on the bottom surface of the second groove is connected with any two adjacent round holes in the four round holes on the base through bolts.
3. The novel magnetic field measuring instrument according to claim 1, wherein: the supporting legs are provided with clamping grooves for clamping the measuring plates.
4. A novel magnetic field measuring instrument according to claim 3, wherein: the width of the clamping groove is larger than that of the measuring plate; the distance from the bottom end of the clamping groove to the bottom surface is larger than the height of the groove.
5. The novel magnetic field measuring instrument according to claim 1, wherein: the base and the measuring plate are made of transparent sub-force plates.
6. The novel magnetic field measuring instrument according to claim 5, wherein: four foot pads are arranged on the bottom surface of the base; the foot pads are respectively positioned at four corner edges of the base.
7. The novel magnetic field measuring instrument according to claim 1, wherein: the device also comprises a plurality of Helmholtz coils, an integrated Hall sensor and a Helmholtz coil magnetic field experiment instrument.
8. The novel magnetic field measuring instrument as set forth in claim 7, wherein: the Helmholtz coil is connected with an integrated Hall sensor; the integrated Hall sensor is connected with a Helmholtz coil magnetic field experimental instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810172702.6A CN108344957B (en) | 2018-03-01 | 2018-03-01 | Novel magnetic field measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810172702.6A CN108344957B (en) | 2018-03-01 | 2018-03-01 | Novel magnetic field measuring instrument |
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| Publication Number | Publication Date |
|---|---|
| CN108344957A CN108344957A (en) | 2018-07-31 |
| CN108344957B true CN108344957B (en) | 2023-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810172702.6A Active CN108344957B (en) | 2018-03-01 | 2018-03-01 | Novel magnetic field measuring instrument |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201017506Y (en) * | 2007-02-09 | 2008-02-06 | 杭州大华仪器制造有限公司 | Three-dimensional helmholtz coil magnetic field experiment instrument |
| CN201387681Y (en) * | 2008-12-11 | 2010-01-20 | 浙江天煌科技实业有限公司 | Helmholtz coil magnetic field measuring experimental apparatus |
| JP2011115415A (en) * | 2009-12-04 | 2011-06-16 | Hitachi Medical Corp | Gradient magnetic field coil for magnetic resonance imaging apparatus, magnetic resonance imaging apparatus using the same, and manufacturing method |
| CN102540110A (en) * | 2011-12-19 | 2012-07-04 | 北京卫星环境工程研究所 | Magnetic torque measuring method and measuring coil assembly |
| CN102542889A (en) * | 2012-02-16 | 2012-07-04 | 北京工商大学 | Demonstration device for magnetic field distribution of doubly electrified coils |
| CN203745625U (en) * | 2014-02-25 | 2014-07-30 | 哈尔滨学院 | Magnetic field measuring apparatus for square current-carrying coil |
-
2018
- 2018-03-01 CN CN201810172702.6A patent/CN108344957B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201017506Y (en) * | 2007-02-09 | 2008-02-06 | 杭州大华仪器制造有限公司 | Three-dimensional helmholtz coil magnetic field experiment instrument |
| CN201387681Y (en) * | 2008-12-11 | 2010-01-20 | 浙江天煌科技实业有限公司 | Helmholtz coil magnetic field measuring experimental apparatus |
| JP2011115415A (en) * | 2009-12-04 | 2011-06-16 | Hitachi Medical Corp | Gradient magnetic field coil for magnetic resonance imaging apparatus, magnetic resonance imaging apparatus using the same, and manufacturing method |
| CN102540110A (en) * | 2011-12-19 | 2012-07-04 | 北京卫星环境工程研究所 | Magnetic torque measuring method and measuring coil assembly |
| CN102542889A (en) * | 2012-02-16 | 2012-07-04 | 北京工商大学 | Demonstration device for magnetic field distribution of doubly electrified coils |
| CN203745625U (en) * | 2014-02-25 | 2014-07-30 | 哈尔滨学院 | Magnetic field measuring apparatus for square current-carrying coil |
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| CN108344957A (en) | 2018-07-31 |
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