CN115061072A

CN115061072A - Gauss meter capable of displaying direction identification of magnetic force line

Info

Publication number: CN115061072A
Application number: CN202210827964.8A
Authority: CN
Inventors: 罗斌斌; 罗奇
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2022-09-16

Abstract

The invention discloses a gauss meter capable of displaying the direction identification of magnetic force lines, which comprises: a gauss meter body and a magnetic field probe; one end of the gaussmeter body is provided with an aviation socket, and the periphery of the aviation socket is provided with a connecting shell with threads; the magnetic field probe consists of an aviation plug, a lead, a handle, a scale and a Hall sensor; the aviation plug is provided with a bolt; the aviation plug is correspondingly connected with the aviation socket, and the bolt is used for screwing on the connecting shell; the gauss meter body comprises: and the display module is used for displaying the probe position mark as a reference object and displaying the magnetic pole and magnetic line direction mark which take the probe position mark as the reference object. The gauss meter product adopts an aviation plug connector, is convenient to plug and pull and can be locked; the probe position direction displayed by the display module is clear, and the magnetic pole and magnetic line direction of the measuring object can be clearly shown due to the reference object, so that a user can accurately know the magnetic field condition in the measured scene.

Description

Gauss meter capable of displaying direction mark of magnetic force line

Technical Field

The invention relates to the technical field of magnetic field measuring instruments, in particular to a gaussmeter capable of displaying direction marks of magnetic lines of force.

Background

A gaussmeter is a magnetic field detection instrument designed by the hall effect principle, which can be used, for example, to measure magnetic field strength where the accuracy requirements are not particularly high. The hall effect is one of the electromagnetic effects, which was discovered by the american physicist hall (e.h. hall, 1855-. When current passes through a semiconductor perpendicular to an external magnetic field, carriers are deflected, an additional electric field is generated in a direction perpendicular to the current and the magnetic field, so that potential difference is generated at two ends of the semiconductor and is proportional to the magnetic field intensity, and the magnetic field intensity is measured by measuring the potential difference, which is a very common technology.

The existing magnetic field detecting instrument in the market only simply displays the polarity identification of N or S and the numerical value of the magnetic field intensity during measurement, as shown in figure 1, the display picture of the 3 types of magnetic field measuring instrument in the market has no probe direction display, and the measurement display has no measuring probe reference object, so that the N and S are not displayed clearly, and simultaneously, the direction of the magnetic force line is not displayed. However, because the Hall piece direction and the magnetic line direction prompt display are not available, the measurement direction is easy to be wrong, and the magnetic line direction relative to the probe cannot be displayed. In particular, the direction of the magnetic field lines can only be obtained by physical analysis when measuring the spatial magnetic field and is not directly apparent.

In addition, the existing magnetic field detection instrument has larger improvement space, such as inconvenient fixation, inconvenient carrying and the like.

Therefore, in view of the above problems, practitioners of the same industry are in great need to solve the problems.

Disclosure of Invention

The invention aims to provide a gaussmeter capable of displaying the direction marks of magnetic force lines, which at least partially solves the technical problems, and the gaussmeter can avoid or reduce the error of the measuring direction due to the direction prompt display of a Hall piece during the measurement, and can make the measuring result intuitive and clear by adding the direction display of the magnetic force lines.

In order to achieve the purpose, the invention adopts the technical scheme that:

the invention provides a gauss meter capable of displaying the direction identification of magnetic force lines, comprising: a gauss meter body and a magnetic field probe;

the gaussmeter comprises a gaussmeter body, a screw thread and a screw thread, wherein one end of the gaussmeter body is provided with an aviation socket, and the screw thread is connected with a connecting shell at the periphery of the aviation socket;

the magnetic field probe consists of an aviation plug, a lead, a handle, a scale and a Hall sensor; one end of the handle is provided with the scale, and any surface of the scale is provided with the Hall sensor; the other end of the handle is connected with the aviation plug through the conducting wire; the aviation plug is provided with a bolt; the aviation plug is correspondingly connected with the aviation socket, and the bolt is screwed on the connecting shell;

the gauss meter body comprises: and the display module is used for displaying the probe position mark as a reference object and displaying the magnetic pole and magnetic line direction mark which take the probe position mark as the reference object.

Furthermore, the aviation socket is also provided with a cover cap made of flexible materials and used for covering the aviation socket interface;

the extension end of the cap is fixedly sleeved on the periphery of the aviation socket.

Furthermore, a key module is arranged on the gauss meter body, and the key module comprises a plurality of keys; wherein, at least one key is provided with a bulge.

Further, the shell of the gaussmeter body is made of aluminum alloy or engineering plastics.

Furthermore, the two side end faces of the shell of the gaussmeter body are provided with a plurality of anti-skid projections which are in a strip shape or a dot shape.

Further, the back of the gauss meter body is provided with a groove and/or a clamping part.

Furthermore, a movable support is arranged on the back of the gaussmeter body.

Further, the outer part of the Hall sensor is coated with transparent packaging glue and fixed on the surface of the scale.

Further, the display module is an LED backlight display screen.

Further, the gauss meter body is internally provided with a rechargeable 9V lithium battery.

Compared with the prior art, the invention has the following beneficial effects:

a gauss meter capable of displaying the direction identification of magnetic force lines comprises: a gauss meter body and a magnetic field probe; one end of the gaussmeter body is provided with an aviation socket, and the periphery of the aviation socket is provided with a connecting shell with threads; the magnetic field probe consists of an aviation plug, a lead, a handle, a scale and a Hall sensor; one end of the handle is provided with the scale, and any surface of the scale is provided with the Hall sensor; the other end of the handle is connected with the aviation plug through the conducting wire; the aviation plug is provided with a bolt; the aviation plug is correspondingly connected with the aviation socket, and the bolt is screwed on the connecting shell; the gauss meter body comprises: and the display module is used for displaying the probe position mark as a reference object and displaying the magnetic pole and magnetic line direction mark which take the probe position mark as the reference object. The gaussmeter body and the magnetic field probe adopt aviation connectors, so that the gaussmeter is convenient to insert and pull out and can be locked; the probe position direction that the display module shows is clear and definite, because there is the reference object can clearly show measuring object magnetic pole and magnetic force line direction, can clearly know the magnetic force line direction according to the probe direction when measuring space magnetic field, helps the user to know the magnetic field condition in the scene of measurationing accurately.

Drawings

FIG. 1 is a diagram of a display screen of a 3-model magnetic field measurement instrument on the market;

FIG. 2 is a structural view of a gauss meter capable of displaying the direction of magnetic lines;

FIG. 3 is an interface diagram of a display module;

FIG. 4a is a schematic diagram of a gauss meter measuring unknown magnetic material capable of showing the direction of magnetic field lines;

FIG. 4b is a schematic view of the magnetic field probe of FIG. 4a rotated 180 to measure unknown magnetic materials;

FIG. 5a is a schematic diagram of a commercial Gauss meter measuring the unknown magnetic material in FIG. 4 a;

FIG. 5b is a schematic view of the magnetic field probe of FIG. 5a rotated 180 to measure unknown magnetic materials;

FIG. 6 is a schematic diagram of a gauss meter capable of displaying the direction of magnetic field lines when measuring a space magnetic field;

FIG. 7 is a schematic diagram of a commercial Gauss meter measuring the magnetic field in the space of FIG. 6;

FIG. 8 is a schematic view of the back bracket of the gauss meter showing the direction of the magnetic lines when it is open.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 2, the gauss meter capable of displaying the direction identifier of the magnetic force line provided by the present invention comprises: a gaussmeter body 1 and a magnetic field probe 2;

wherein, one end of the gauss meter body 1 is provided with an aviation socket 11, and the periphery of the aviation socket 11 is provided with a connecting shell 12 with screw threads;

the magnetic field probe 2 consists of an aviation plug 21, a lead 22, a handle 23, a scale 24 and a Hall sensor 25; a scale 24 is arranged at one end of the handle 23, and a Hall sensor 25 is arranged on any surface of the scale 24; for example, the hall sensor 25 is externally coated with a transparent encapsulating adhesive and fixed on the surface of the scale 24.

The other end of the handle 23 is connected with an aviation plug 21 through a wire 22; the aviation plug 21 is provided with a bolt 26; the aviation plug 21 is correspondingly connected with the aviation socket 11, and the bolt 26 is used for being screwed on the connecting shell 12; an aviation connector is selected, so that the plugging and pulling are convenient, and the locking can be realized. In addition, the aviation connector is used as a small-size plugging self-locking multi-core connector and is provided with a multi-core mechanical positioning pin, mixed insertion can be prevented, and electromagnetic shielding can be carried out at 360 degrees.

The aviation plug and the aviation socket can be replaced by a rammo plug and a rammo socket. The surface of the wire 22 may be provided with a wear-resistant rubber layer, for example, having a length of 1 meter.

The gaussmeter body 1 includes: the display module 13, as shown in fig. 3, can display the probe position mark as the reference object 14, and display the magnetic poles 15 and the magnetic line direction marks 16 with the probe position mark as the reference object 14. The display module is for example LED backlight display screen, and the gauss meter body embeds chargeable 9V lithium cell, easy to assemble and change. Other components inside the gauss meter body 1 are the same as those on the market.

The difference between the present invention and the commercial product in the measurement is illustrated by two examples of measurements:

example 1:

the comparison of the results of the gaussmeter of the example of the present invention and the existing commercial product when measuring the same unknown magnetic material is illustrated as follows:

referring to fig. 4a, in the gauss meter provided in the embodiment of the present invention, during the measurement process of the magnetic field probe, one side of the hall sensor is placed upward above the unknown magnetic material, that is, the hall sensor does not directly face the unknown magnetic material, then the display module displays: the probe position mark (which is composed of two steps, the length of the lower step is longer than that of the upper step), an upward arrow is displayed above the probe position mark, and the polarity N is displayed below the probe position mark. Namely: under the condition that the Hall sensor is measuring upwards, the content displayed by the display module at the moment shows that the magnetic line probe passes through the Hall sensor from bottom to top on the whole, N is arranged below the convex surface of the probe, and the magnetic pole of the unknown magnetic material to be measured is N.

Referring to fig. 4b, a gauss meter, also provided for an embodiment of the present invention, was used to measure the unknown magnetic material of fig. 4 a. In the measurement process of the magnetic field probe, one side of the Hall sensor is downwards arranged above the unknown magnetic material (namely, the probe in FIG. 4a is rotated by 180 degrees for measurement), namely, the Hall sensor directly faces the unknown magnetic material, and then the display module displays: a downward arrow is shown above the probe position indicator and a polarity S is shown below the probe position indicator. Namely: under the condition that the Hall sensor is measuring downwards, the content displayed by the display module at the moment shows that the magnetic line probe passes through the Hall sensor from top to bottom on the whole, S is arranged below the convex surface of the probe, and the magnetic pole of the unknown magnetic material to be measured is N.

In the measurement mode of fig. 4a and 4b, the probe position direction is clear, and the magnetic pole and magnetic line direction of the measurement object can be clearly shown due to the reference object. The user can avoid or reduce the error of the measuring direction, and the measuring result can be visual and clear by adding the direction display of the magnetic force line.

Referring to fig. 5a, in order to measure the unknown magnetic material in fig. 4a with a prior art gauss meter, one side of the hall sensor is also placed upward above the unknown magnetic material, i.e. the hall sensor does not directly face the unknown magnetic material, then the display module displays: and N is added. The user considers the magnetic pole of the unknown magnetic material being measured to be N.

Referring to fig. 5b, a prior art commercial gauss meter is shown as in fig. 5a, measuring the unknown magnetic material in fig. 4 a. At this time, one side of the hall sensor is placed downwards above the unknown magnetic material (i.e. the probe of fig. 5a is rotated by 180 ° for measurement), that is, the hall sensor directly faces the unknown magnetic material, then the display module displays: and S, wherein the magnetic pole of the unknown magnetic material to be measured is considered to be S by the user.

The measurement modes of fig. 5a and 5b are different, which results in different measurement results. Since no reference object or magnetic line is shown, the original magnetic pole N is easily mistaken as S by the user.

Example 2: comparison on the magnetic field in the measurement space:

as shown in fig. 6, in the gauss meter provided in the embodiment of the present invention, when the spatial magnetic field (in the case of having a spiral tube) is measured, the display module displays that one side of the hall sensor is placed upward in the spatial magnetic field: the probe position mark (which is composed of two steps, the length of the lower step is longer than that of the upper step), an upward arrow is displayed above the probe position mark, and the polarity N is displayed below the probe position mark. The direction of the magnetic lines can be indicated to the measurer by displaying the arrow and the actual direction of the magnetic lines.

Similarly, when the probe rotates 180 degrees for measurement, the user can know the direction of the magnetic lines of force at the position according to the display.

As shown in fig. 7, when the magnetic field in fig. 6 is measured for a prior art gauss meter, one side of the hall sensor is placed upward in the spatial magnetic field, and only N is shown. However, since there is no solid material, it has no meaning to display N.

According to the gaussmeter capable of displaying the direction marks of the magnetic force lines, provided by the embodiment of the invention, the gaussmeter body and the magnetic field probe adopt aviation connectors, are convenient to insert and pull out and can be locked; the probe position direction displayed by the display module is definite, and the magnetic pole and the magnetic line direction of the measuring object can be clearly shown due to the reference object, so that the magnetic line direction can be clearly known according to the probe direction when the space magnetic field is measured, and a user can accurately know the magnetic field condition in a measured scene.

In one embodiment, the aviation socket is also provided with a cover cap made of flexible materials and used for covering the aviation socket; the extension end of the cap is fixedly sleeved on the periphery of the aviation socket; when the gaussmeter is stored and the magnetic field probe is not connected, the cover cap made of flexible materials is covered on the aviation socket, so that the invasion of dust is prevented, and the service life is prolonged; meanwhile, in order to avoid the loss of the cap, the extension end of the cap is provided with an annular sleeve which is sleeved on the periphery of the aviation socket.

As shown in fig. 2, a key module is arranged on the gauss meter body 1, and the key module comprises a plurality of keys; wherein, be equipped with the arch on at least one button, optional silica gel material button improves the comfort. Such as: the middle key is a switch key, the upper left key is a peak value key, in the measuring process, the measured maximum value can be kept displayed on a screen, and the change of reading caused by the position number of the measuring probe can be eliminated. The upper right key is a zero clearing key, and the reading on the screen can be cleared after being pressed. The lower left key is a unit switching key, and after the key is pressed, the conversion of mT and Gs units can be realized. The right lower side key is a backlight key, and after the key is pressed down, for example, in a dark environment, the background light of the screen is turned on, so that the data can be conveniently seen clearly; the brightness is soft and comfortable, and the use by a user in a dark night environment is convenient.

In one embodiment, the material of the housing of the gauss meter body 1 can be aluminum alloy or engineering plastic; for example, when engineering plastics are selected, the material has the advantages of high rigidity, small creep, high mechanical strength, good heat resistance and good electrical insulation, and can be used in harsh chemical and physical environments for a long time. When the aluminum alloy is selected, the strength is high, the weight is light, and internal devices can be better protected.

In one embodiment, for convenience of hand holding, a plurality of anti-skid protrusions 17 may be disposed on two side end surfaces of the housing of the gauss meter body 1, for example, the anti-skid protrusions are in a strip shape or a dot shape; the structure can also be a concave structure; the purpose is to avoid the hand to slide, resulting in falling.

In one embodiment, the back of the gauss meter body 1 is provided with a recess and/or a holding portion for the user to fix on a wall or to hold on a belt at the waist, for example, when carrying.

As shown in fig. 8, a movable support 18 is arranged on the back of the gaussmeter body 1, for example, when in use, the movable support can be placed on a table when opened; use the completion, accomodate the support and hide in the standing groove at the back.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A gauss meter capable of displaying the direction identification of magnetic force lines is characterized by comprising: a gauss meter body and a magnetic field probe;

2. The gauss meter capable of displaying the direction identification of the magnetic force line according to claim 1, wherein said aviation socket further comprises a cap made of flexible material for covering said aviation socket;

3. The gauss meter capable of displaying the direction identification of the magnetic force line according to claim 1, wherein a key module is arranged on the gauss meter body, and the key module comprises a plurality of keys; wherein, at least one key is provided with a bulge.

4. The gauss meter capable of displaying the direction marks of magnetic force lines according to claim 1, wherein the shell of the gauss meter body is made of aluminum alloy or engineering plastic.

5. The gauss meter capable of displaying the direction marks of magnetic force lines according to claim 4, wherein the two side end faces of the housing of the gauss meter body are provided with a plurality of anti-skid protrusions, and the anti-skid protrusions are in the shape of strips or dots.

6. The gauss meter capable of displaying the direction identification of magnetic force lines as claimed in claim 1, wherein the back of the gauss meter body is provided with a groove and/or a clamping portion.

7. The gauss meter capable of displaying the direction identification of magnetic force lines as claimed in claim 1, wherein a movable support is provided on the back of the gauss meter body.

8. The gaussmeter capable of displaying the direction identification of magnetic force lines as claimed in claim 1, wherein the exterior of said hall sensor is coated with transparent packaging adhesive and fixed on the surface of said scale.

9. The gauss meter capable of displaying the direction identification of magnetic force lines according to claim 1, wherein said display module is an LED backlight display screen.

10. The gauss meter capable of displaying the direction identification of magnetic force lines as claimed in claim 1, wherein said gauss meter body is provided with a rechargeable 9V lithium battery.