Multifunctional electromagnet experiment device

Abstract

The utility model discloses a multifunctional electromagnet experiment device, which relates to the technical field of electromagnet experiments and comprises an electromagnetic coil mounting plate, a plurality of electromagnetic coils are detachably connected onto the electromagnetic coil mounting plate, and a sensor probe is arranged on one side of each electromagnetic coil; the plurality of sensor probes are electrically connected with the magnetic induction intensity sensor; the magnetic induction intensity sensor is connected with the data acquisition unit through a data acquisition line; the data collector is connected with a computer through a data transmission line; according to the utility model, the magnetic induction intensity sensor transmits an electric signal of the magnetic force of each electromagnetic coil to the data acquisition unit through the data acquisition line; the data collector converts the electric signal into a digital signal and transmits the digital signal to a computer through a data transmission line; and the computer displays and forms each group of test results, so that experimenters can conveniently analyze data, students can clearly know the relationship between the number of turns of the electromagnetic coil and the magnitude of the magnetic force, and the relationship between the current intensity and the magnitude of the magnetic force can also be obtained.

Description

TECHNICAL FIELD

[0001] The utility model relates to electromagnet experimental technology field, concretely is a multifunctional electromagnet experimental device. BACKGROUND

[0002] Physical experiment is a very important part in the physical teaching process, it can not only exercise the practical operation ability of students, but also can assist students to understand theoretical knowledge, electromagnet experiment is a very important experiment in physical experiment, can explain the electromagnetic phenomenon in physics.

[0003] Electromagnet experiment is an important practical activity of exploring the properties of electromagnet and related influencing factors.

[0004] The existing electromagnet experimental device has the following problems: the coil is difficult to wind, the time is long, due to the increase of the number of turns, the length of the wire is increased, the resistance is increased, the current is reduced, the increase of the current variable, the increase of the variable leads to the inaccuracy of the experiment; The number of pins needs to be counted every time during the experiment, and the average number needs to be calculated after three times, so the design is time-consuming, it is difficult to complete two experimental research activities; Comparison in digital form is prone to errors, and data sharing is difficult. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a multifunctional electromagnet experimental device, adopts sensor and transmits data into computer, directly shows the size of magnetism, generates column chart after entering data on student end computer, generates class summary table on teacher end computer, compares and exchanges all data, to solve the technical problem in the above background technology.

[0006] In order to achieve the above object, the utility model provides the following technical scheme:

[0007] A multifunctional electromagnet experimental device, electromagnet coil mounting plate is detachably connected with a plurality of electromagnet coils on the electromagnet coil mounting plate, the number of turns of the plurality of electromagnet coils increases in turn from left to right;

[0008] One sensor probe is arranged on one side of each electromagnet coil;A plurality of sensor probes are electrically connected with a magnetic induction intensity sensor;The magnetic induction intensity sensor is connected with a data collector through a data acquisition line;The data collector is connected with a computer through a data transmission line;

[0009] A plurality of electromagnet coils are connected with a coil control switch through a wire;The coil control switch is connected with a current regulator through a wire;The current regulator is connected with a power supply.

[0010] As a further technical scheme of the utility model, the both ends of the electromagnetic coil mounting plate are fixed with height adjusting assemblies; the height adjusting assemblies are slidingly connected on the vertical rods; the bottom of the vertical rod is fixed in the fixed base, and the fixed base is mounted on the bottom plate.

[0011] As a further technical scheme of the utility model, the coil control switch and the current regulator are fixed on the bottom plate.

[0012] As a further technical scheme of the utility model, the height adjusting assembly comprises a first sliding block and a second sliding block arranged below the first sliding block; the second sliding block is connected with a C-shaped block through a hanger, wherein the C-shaped block is fixed with the electromagnetic coil mounting plate; the C-shaped block is fixedly connected with the electromagnetic coil mounting plate.

[0013] As a further technical scheme of the utility model, one side of the first sliding block is bolted with a locking bolt; the first sliding block is locked and fixed with the vertical rod through the locking bolt.

[0014] As a further technical scheme of the utility model, the first sliding block and the second sliding block are both slidingly connected on the vertical rod, and the second sliding block is further provided with a fine adjustment bolt on one side; the fine adjustment bolt is rotatably connected with the second sliding block through a bearing and is threadedly connected with the first sliding block.

[0015] As a further technical scheme of the utility model, the outside of the vertical rod is provided with a scale.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1. The utility model discloses a plurality of electromagnetic coils, and the number of turns of the electromagnetic coils increases from left to right; when the plurality of electromagnetic coils are electrified at the same time, the relationship between the number of turns of the electromagnetic coils and the magnetic force can be obtained by observing the number of tacks adsorbed by each electromagnetic coil.

[0018] 2. The utility model discloses that the magnetic induction intensity sensor transmits the electric signals of the magnetic force of each electromagnetic coil to the data collector through the data acquisition line; the data collector converts the electric signals into digital signals and transmits the digital signals to the computer through the data transmission line; the computer displays each test result, thereby facilitating the analysis of the data by the experimenters, so that students can clearly understand the relationship between the number of turns of the electromagnetic coils and the magnetic force and can also obtain the relationship between the current intensity and the magnetic force.

[0019] 3. When the height of the electromagnetic coil is adjusted, the locking bolt is loosened first, so that the second sliding block below the first sliding block can move up and down along the vertical rod; when the first sliding block is fixed with the vertical rod after the locking bolt is tightened, the height adjustment of the electromagnetic coil is realized.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the three-dimensional structure schematic diagram of the utility model.

[0021] Figure 2 is another perspective view schematic diagram of the utility model Figure 1 .

[0022] Figure 3 is the front view of the utility model Figure 1 .

[0023] Figure 4 is the local enlarged schematic diagram of the utility model Figure 2 .

[0024] In the drawing: 1 - electromagnetic coil mounting plate, 2 - electromagnetic coil, 3 - sensor probe, 4 - coil control switch, 5 - current regulator, 6 - magnetic induction intensity sensor, 7 - data acquisition line, 8 - data collector, 9 - data transmission line, 10 - computer, 11 - fixed base, 12 - vertical rod, 13 - bottom plate, 14 - height adjustment assembly, 15 - first sliding block, 16 - locking bolt, 17 - second sliding block, 18 - fine adjustment bolt, 19 - C block, 20 - hanger. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Please refer to Figures 1-4 , in the embodiments of the utility model, a multifunctional electromagnet experiment device, including electromagnetic coil mounting plate 1, a plurality of electromagnetic coils 2 are detachably connected on the electromagnetic coil mounting plate 1, the number of turns of the plurality of electromagnetic coils 2 increases sequentially from left to right;

[0027] One side of each electromagnetic coil 2 is provided with a sensor probe 3;A plurality of sensor probes 3 are electrically connected with a magnetic induction intensity sensor 6;The magnetic induction intensity sensor 6 is connected with a data collector 8 through a data acquisition line 7;The data collector 8 is connected with a computer 10 through a data transmission line 9;

[0028] A plurality of electromagnetic coils 2 are connected with a coil control switch 4 through wires;The coil control switch 4 is connected with a current regulator 5 through wires;The current regulator 5 is connected with a power supply.

[0029] By adopting the above technical scheme, the number of turns of the electromagnetic coil 2 increases from left to right, and when multiple electromagnetic coils 2 are energized at the same time, the relationship between the number of turns of the electromagnetic coil 2 and the magnetic force can be obtained by observing the number of tacks adsorbed by each electromagnetic coil 2.

[0030] At the same time, the magnetic force of the electromagnetic coil 2 can be sensed by the sensor probe 3 and the magnetic induction intensity sensor 6; it should be noted that the magnetic induction intensity sensor 6 is a magnetoresistance sensor (principle: place the sensor in the magnetic field of the electromagnet, the electromagnet suction force changes the magnetic field, and then causes the magnetoresistance sensor resistance value to change. By measuring the change of the resistance value, through the conversion circuit processing, the electric signal related to the electromagnet suction force can be obtained); the magnetoresistance sensor is a prior art, and thus will not be described again.

[0031] The magnetic induction intensity sensor 6 transmits the electric signal of the magnetic force of each electromagnetic coil 2 to the data collector 8 through the data acquisition line 7; the data collector 8 converts the electric signal into a digital signal and transmits it to the computer 10 through the data transmission line 9; the computer 10 displays each group of test results, so that the experimenters can analyze the data, so that students can clearly understand the relationship between the number of turns of the electromagnetic coil and the magnetic force, and also can obtain the relationship between the current intensity and the magnetic force.

[0032] The on-off of the electromagnetic coil 2 with different number of turns is controlled by the coil control switch 4, and the influence of the number of turns on the electromagnetic force can be observed and recorded.

[0033] As a further description of the embodiment, the electromagnetic coil 2 has a core, and the coil is wound outside the core; the core and the electromagnetic coil mounting plate 1 can be fixed by clamping, inserting or locking by nut; the purpose is to facilitate the quick disassembly and assembly of the electromagnetic coil;

[0034] The electromagnetic coil is set to a quick release structure, so that different number of turns, lengths and different diameter coils can be replaced during the experiment, thereby facilitating the verification of the relationship between the electromagnetic force and the number of turns, length and diameter of the coil; so that students can directly understand the intuitive feeling of the current under the influence of different factors;

[0035] Secondly, during the experiment, students may make various guesses, so that appropriate experimental objects can be replaced according to the guesses of the students, thereby achieving the purpose of solving the students' doubts; and achieving the effect of benefiting students and teachers from the essence of teaching.

[0036] In the embodiment, the height adjusting assembly 14 is fixed at both ends of the electromagnetic coil mounting plate 1; the height adjusting assembly 14 is slidingly connected to the vertical rod 12; the bottom of the vertical rod 12 is fixed in the fixed base 11, and the fixed base 11 is mounted on the bottom plate 13. The coil control switch 4 and the current regulator 5 are fixed on the bottom plate 13.

[0037] Further, since the pupils do not have professional cognition and concept of current, dry batteries are usually used for experiments, but the dry batteries have short service life and need to be replaced frequently, which cannot be reused and is not conducive to environmental protection, and the experimental cost is high; the current regulator 5 is used to replace the dry batteries, the size of the current is controlled to simulate the use of the number of dry batteries, so that students can further understand the size control of the current.

[0038] By adopting the above technical scheme, the height adjusting assembly 14 is slidingly connected to the vertical rod 12 and can be adjusted in height along the vertical rod 12; under the premise of a certain magnetic force, the range of the electromagnetic force can be observed by changing the distance between the electromagnetic coil 2 and the tack.

[0039] In the embodiment, the height adjusting assembly 14 includes a first sliding block 15 and a second sliding block 17 arranged below the first sliding block 15; the second sliding block 17 is connected with a C-shaped block 19 through a hanger 20, and the C-shaped block 19 is fixed with the electromagnetic coil mounting plate 1; the C-shaped block 19 is fixedly connected with the electromagnetic coil mounting plate 1.

[0040] One side of the first sliding block 15 is bolted with a locking bolt 16; the first sliding block 15 is locked and fixed with the vertical rod 12 through the locking bolt 16.

[0041] By adopting the above technical scheme, when the height of the electromagnetic coil 2 is adjusted, the locking bolt 16 is loosened first, so that the second sliding block 17 below the first sliding block 15 can move up and down along the vertical rod 12, and when it is moved to the appropriate position, the locking bolt 16 is tightened, so that the first sliding block 15 is fixed with the vertical rod 12, thereby realizing the height adjustment of the electromagnetic coil 2.

[0042] In the embodiment, the first sliding block 15 and the second sliding block 17 are both slidingly connected to the vertical rod 12, and the second sliding block 17 is further provided with a fine adjustment bolt 18 on one side; the fine adjustment bolt 18 is rotatably connected with the second sliding block 17 through a bearing and is threadedly connected with the first sliding block 15; a scale is formed on the outer side of the vertical rod 12.

[0043] By adopting the above technical scheme, when the fine adjustment bolt 18 is rotated, the relative position of the first sliding block 15 and the second sliding block 17 can be adjusted, thereby realizing the fine adjustment of the electromagnetic coil 2 relative to the bottom plate 13.

[0044] The working principle of the utility model is: the number of turns of the electromagnetic coil 2 increases from left to right, when multiple electromagnetic coils 2 are electrified at the same time, by observing the number of tacks adsorbed by each electromagnetic coil 2, the relationship between the number of turns of the electromagnetic coil 2 and the magnetic size can be obtained; at the same time, the magnetic force of the electromagnetic coil 2 can be inducted by the sensor probe 3 and the magnetic induction intensity sensor 6; the electric signal of the magnetic force of each electromagnetic coil 2 is transmitted to the data collector 8 through the data acquisition line 7 by the magnetic induction intensity sensor 6; the data collector 8 converts the electric signal into digital signal and transmits to the computer 10 through the data transmission line 9; the computer 10 displays each group of test results, so that the experimenters can analyze the data, so that students can clearly understand the relationship between the number of turns of the electromagnetic coil and the magnetic force, and the relationship between the current intensity and the magnetic force can also be obtained;

[0045] When the height of the electromagnetic coil 2 is adjusted, first loosen the locking bolt 16, so that the second sliding block 17 below the first sliding block 15 can move up and down along the stand 12, when moving to the appropriate position, tighten the locking bolt 16, so that the first sliding block 15 is fixed with the stand 12, so that the height of the electromagnetic coil 2 is adjusted; so that the experimenters can record the influence of the observation distance on the magnetic force under the condition of current rating.

[0046] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0047] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A multifunctional electromagnet experimental device, characterized in that: The utility model provides electromagnetic coil mounting plate (1), a plurality of electromagnetic coils (2) are detachably connected on electromagnetic coil mounting plate (1), and the number of turns of coil of plurality of electromagnetic coils (2) increases gradually from left to right; One sensor probe (3) is arranged on one side of each electromagnetic coil (2); a plurality of sensor probes (3) are electrically connected with a magnetic induction intensity sensor (6); the magnetic induction intensity sensor (6) is connected with a data collector (8) through a data acquisition line (7); the data collector (8) is connected with a computer (10) through a data transmission line (9); A plurality of electromagnetic coils (2) are connected with a coil control switch (4) through wires; the coil control switch (4) is connected with a current regulator (5) through wires; the current regulator (5) is connected with a power supply.

2. The multifunctional electromagnet experimental device according to claim 1, characterized in that: Both ends of the electromagnetic coil mounting plate (1) are fixed with height adjusting assemblies (14); the height adjusting assemblies (14) are slidingly connected on a vertical rod (12); the bottom of the vertical rod (12) is fixed in a fixed base (11), and the fixed base (11) is installed on a bottom plate (13).

3. The multi-functional electromagnet experimental device according to claim 1, characterized in that: The coil control switch (4) and the current regulator (5) are fixed on the bottom plate (13).

4. The multi-functional electromagnet experimental device according to claim 2, characterized in that: The height adjusting assemblies (14) include first sliding blocks (15) and second sliding blocks (17) arranged below the first sliding blocks (15); the second sliding blocks (17) are connected with C-shaped blocks (19) through hangers (20), wherein the C-shaped blocks (19) are fixed with the electromagnetic coil mounting plate (1); the C-shaped blocks (19) are fixedly connected with the electromagnetic coil mounting plate (1).

5. The multi-functional electromagnet experimental device according to claim 4, characterized in that: One side of the first sliding block (15) is bolted with locking bolts (16); the first sliding block (15) is locked and fixed with the vertical rod (12) through the locking bolts (16).

6. The multi-functional electromagnet experimental device according to claim 4, characterized in that: The first sliding block (15) and the second sliding block (17) are slidingly connected on the vertical rod (12), and the second sliding block (17) is further provided with a fine adjustment bolt (18) on one side; the fine adjustment bolt (18) is rotatably connected with the second sliding block (17) through a bearing and is threadedly connected with the first sliding block (15).

7. The multi-functional electromagnet experimental device according to claim 6, characterized in that: A scale is formed on the outer side of the vertical rod (12).

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