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

Abstract

The invention discloses a gauss meter capable of displaying a direction mark of a magnetic field line, comprising: a gauss meter body and a magnetic field probe; one end of the gauss meter body is provided with an aviation socket, and a connection shell with threads is arranged on the outer periphery of the aviation socket; It consists of plug, wire, handle, scale and Hall sensor; there are bolts on the aviation plug; the aviation plug is connected to the aviation socket correspondingly, and the bolts are used to screw on the connection shell; the Gauss meter body includes: a display module for displaying The probe position mark is used as a reference object, and the magnetic pole and magnetic field line direction mark with the probe position mark as a reference object are displayed. The gauss meter product adopts aviation plug connector, which is easy to plug and unplug, and can be locked; the position and direction of the probe displayed by the display module are clear. Because there is a reference object, it can clearly indicate the direction of the magnetic pole and magnetic field line of the measuring object, which is helpful for the user to accurately Know the magnetic field in the scene being measured.

Description

A gauss meter that can display the direction of magnetic field lines

technical field

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

Background technique

Gauss meter is a magnetic field detection instrument designed by the Hall effect principle. For example, the Hall effect principle can be used to measure the magnetic field strength in places where the accuracy requirement is not particularly high. The Hall effect is a kind of electromagnetic effect, which was discovered by American physicist Hall (E.H.Hall, 1855-1938) in 1879 when he studied the conduction mechanism of metals. When the current passes through the semiconductor perpendicular to the external magnetic field, the carriers are deflected, and an additional electric field is generated in the direction perpendicular to the current and the magnetic field, thereby generating a potential difference between the two ends of the semiconductor. The potential difference is proportional to the magnetic field strength. Magnetic field strength, which is a very versatile technique.

At present, the existing magnetic field detection instruments on the market simply display the N or S polarity mark and the magnetic field strength value during measurement. As shown in Figure 1, it is the display screen of three magnetic field measurement instruments on the market. Probe direction display, measurement display because there is no measurement probe reference object, which means N and S are not clear, and there is no magnetic field line direction display. However, since there is no indication of the direction of the Hall plate and the direction of the magnetic field, it is easy to cause the wrong measurement direction, and the direction of the magnetic field relative to the probe cannot be displayed. Especially when measuring the magnetic field in space, the direction of the magnetic field lines can only be obtained through physical analysis, which is not intuitive and clear.

In addition, the existing magnetic field detection instruments still have a large room for improvement, such as being inconvenient to fix, and inconvenient to carry.

Therefore, in response to the above problems, practitioners in the same industry need to solve them urgently.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a gauss meter capable of displaying the direction of the magnetic field line, which at least partially solves the above-mentioned technical problems, because the gauss meter has the direction prompt display of the Hall plate during measurement, so that the user can avoid or reduce the measurement direction error, By adding the display of the direction of the magnetic field lines, the measurement results can be made intuitive and clear.

To achieve the above object, the technical scheme adopted in the present invention is:

The invention provides a gauss meter capable of displaying a direction mark of a magnetic field line, comprising: a gauss meter body and a magnetic field probe;

Wherein, one end of the gauss meter body is provided with an aviation socket, and a connection shell with threads is arranged on the outer periphery of the aviation socket;

The magnetic field probe is composed of an aviation plug, a wire, a handle, a ruler and a Hall sensor; the ruler is installed at one end of the handle, and the Hall sensor is installed on any surface of the ruler; the other end of the handle passes through The wire is connected to the aviation plug; the aviation plug is provided with a bolt; the aviation plug is correspondingly connected to the aviation socket, and the bolt is used to be screwed on the connection shell;

The gauss meter body includes: a display module for displaying a probe position identification as a reference object, and displaying a magnetic pole and magnetic field line direction identification with the probe position identification as a reference object.

Further, the aviation socket also has a cover cap made of flexible material, which is used to cover the interface of the aviation socket;

The extended end of the cap is fixedly sleeved on the outer circumference of the aviation socket.

Further, a button module is provided on the Gauss meter body, and the button module includes a plurality of buttons; wherein, at least one button is provided with a protrusion.

Further, the shell material of the Gauss meter body is aluminum alloy or engineering plastic.

Further, a plurality of anti-skid protrusions are provided on the two side end surfaces of the casing of the Gauss meter body, and the anti-skid protrusions are in the shape of strips or points.

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

Further, the back of the Gauss meter body is provided with a movable bracket.

Further, the outside of the Hall sensor is coated with a transparent encapsulant and fixed on the surface of the scale.

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

Further, the Gauss meter body has a built-in rechargeable 9V lithium battery.

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

A gauss meter capable of displaying a direction mark of a magnetic field line, comprising: a gauss meter body and a magnetic field probe; one end of the gauss meter body is provided with an aviation socket, and a connection shell with threads is arranged on the outer periphery of the aviation socket; A plug, a wire, a handle, a scale and a Hall sensor are formed; one end of the handle is installed with the scale, and the Hall sensor is installed on any surface of the scale; the other end of the handle is connected to the an aviation plug; the aviation plug is provided with a bolt; the aviation plug is connected to the aviation socket correspondingly, and the bolt is used to be screwed on the connection shell; the Gauss meter body includes: a display module, which is used for It is used to display the probe position identification as a reference object, and to display the magnetic pole and magnetic field line direction identification with the probe position identification as a reference object. Among them, the gauss meter body and the magnetic field probe use aviation connectors, which are easy to insert and pull out and can be locked; the position and direction of the probe displayed by the display module are clear. Because of the reference object, the magnetic pole and the direction of the magnetic field lines of the measurement object can be clearly displayed. When the magnetic field is used, the direction of the magnetic field lines can be clearly understood according to the direction of the probe, which helps the user to accurately know the magnetic field in the measured scene.

Description of drawings

Figure 1 shows the display screen of three magnetic field measuring instruments on the market;

Fig. 2 is a gauss meter structure diagram that can display the direction of magnetic field lines;

Fig. 3 is the interface diagram of the display module;

Fig. 4a is a schematic diagram of measuring unknown magnetic material with a gauss meter capable of displaying the direction of magnetic field lines;

Fig. 4b is a schematic diagram of measuring the unknown magnetic material by rotating the magnetic field probe by 180° in Fig. 4a;

Fig. 5a is a schematic diagram of measuring the unknown magnetic material in Fig. 4a with a gauss meter on the market;

Fig. 5b is a schematic diagram of measuring the unknown magnetic material by rotating the magnetic field probe by 180° in Fig. 5a;

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

Fig. 7 is the schematic diagram when the gauss meter on the market measures the space magnetic field in Fig. 6;

FIG. 8 is a schematic diagram of the back support of the gauss meter capable of displaying the direction of the magnetic field lines when the back support is opened.

Detailed ways

In order to make the technical means, creative features, achievement goals and effects realized by the present invention easy to understand, the present invention will be further described below with reference to the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end" and "the other end" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, with a specific orientation. The orientation configuration and operation are therefore not to be construed as limitations of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense, for example, "connected" may be a fixed connection It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Referring to FIG. 2 , the present invention provides a gauss meter capable of displaying the direction of magnetic field lines, including: a gauss meter 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 outer periphery of the aviation socket 11 is provided with a connecting shell 12 with threads;

The magnetic field probe 2 is composed of an aviation plug 21, a wire 22, a handle 23, a ruler 24 and a Hall sensor 25; a ruler 24 is installed at one end of the handle 23, and a Hall sensor 25 is installed on any surface of the ruler 24; for example, the Hall sensor 25 The outside is coated with a transparent encapsulant and fixed on the surface of the ruler 24 .

The other end of the handle 23 is connected to the aviation plug 21 through the wire 22; the aviation plug 21 is provided with a bolt 26; Easy to pull out and lockable. In addition, as a small-size plug-in self-locking multi-core connector, the aviation connector has a multi-core mechanical positioning pin, which can prevent mixed insertion and can be 360° electromagnetic shielding.

The above aviation plugs and aviation sockets can also be replaced by Remo plugs and sockets. The above-mentioned wire 22 may be provided with a wear-resistant rubber layer on the surface, for example, the length is 1 meter.

The Gauss meter body 1 includes: a display module 13, as shown in FIG. 3, which can display the probe position identification as the reference object 14, and the magnetic pole 15 and the magnetic field line direction identification 16 with the probe position identification as the reference object 14. For example, the display module is an LED-backlit display screen, and the Gauss meter body has a built-in rechargeable 9V lithium battery, which is convenient for installation and replacement. The other components inside the Gauss meter body 1 are the same as those on the market.

The difference between the present invention and the products on the market during measurement will be described below through two measurement examples:

example 1:

The gauss meter of the embodiment of the present invention and the existing products on the market, the results when measuring the same unknown magnetic material are compared and explained as follows:

Referring to Fig. 4a, in the Gauss meter provided by the embodiment of the present invention, in the measurement process of the magnetic field probe, the Hall sensor is placed above the unknown magnetic material with one side up, that is, the Hall sensor does not directly face the unknown magnetic material. For magnetic materials, the display module will display: the probe position mark (composed of similar two steps, the length of the lower step is longer than the length of the upper step), the upward arrow is displayed above the probe position mark, and the bottom of the probe position mark is displayed Polarity N. That is, when the Hall sensor is measuring upward, the content displayed by the display module at this time indicates that the magnetic field line probe passes through the Hall sensor from bottom to top as a whole, and N is under the convex surface of the probe, and the magnetic pole of the unknown magnetic material measured is N.

Referring to Fig. 4b, the Gauss meter also provided in the embodiment of the present invention is used to measure the unknown magnetic material in Fig. 4a. Among them, during the measurement of the magnetic field probe, one side of the Hall sensor is placed above the unknown magnetic material (that is, the probe in Figure 4a is rotated 180° for measurement), that is, the Hall sensor directly faces the unknown magnetic material, Then the display module displays: a downward arrow is displayed above the probe position mark, and polarity S is displayed below the probe position mark. That is, when the Hall sensor measures downward, the content displayed by the display module at this time indicates that the magnetic field line probe passes through the Hall sensor from top to bottom on the whole, and S is under the convex surface of the probe, and the magnetic pole of the unknown magnetic material to be measured is measured. is N.

In the measurement methods shown in Fig. 4a and Fig. 4b, the position and direction of the probe are clear. Because of the reference object, the magnetic pole and the direction of the magnetic field lines of the measurement object can be clearly indicated. It allows users to avoid or reduce the wrong measurement direction. By adding the display of the direction of the magnetic force line, the measurement results can be made intuitive and clear.

Referring to Fig. 5a, it is a gauss meter on the market in the prior art. To measure the unknown magnetic material in Fig. 4a, the Hall sensor is also placed above the unknown magnetic material with one side up, that is, the Hall sensor is not directly In the face of unknown magnetic materials, the display module displays: N. The user thinks that the magnetic pole of the unknown magnetic material measured is N.

Referring to Fig. 5b, which is the same as Fig. 5a, a gauss meter on the market in the prior art is used to measure the unknown magnetic material in Fig. 4a. At this time, place one side of the Hall sensor down above the unknown magnetic material (that is, rotate the probe of Figure 5a by 180° to measure), that is, the Hall sensor directly faces the unknown magnetic material, then the display module displays: S , at this time, the user thinks that the magnetic pole of the unknown magnetic material measured is S.

Among them, the measurement methods of Fig. 5a and Fig. 5b are different, resulting in different measurement results. Since there is no reference object and magnetic field line representation, the original magnetic pole N is easily mistaken for S by the user.

Example 2: Comparison in measuring space magnetic field:

As shown in FIG. 6 , in the Gauss meter provided by the embodiment of the present invention, when measuring the space magnetic field (in the case of a helical tube), place one side of the Hall sensor in the space magnetic field upward, and the display module displays: the probe position Logo (consisting of similar two steps, the length of the lower step is longer than the length of the upper step), the upward arrow is displayed above the probe position logo, and the polarity N is displayed below the probe position logo. By showing the arrow and the actual magnetic field direction, the surveyor can be told the direction of the magnetic field line at that location.

Similarly, when the probe is rotated 180° to measure, the user can know the direction of the magnetic field line according to the display.

As shown in FIG. 7 , which is a gauss meter on the market in the prior art, when testing the magnetic field in FIG. 6 , place one side of the Hall sensor upwards in the spatial magnetic field, and only N is displayed. And since there is no physical material, it doesn't make any sense to show N at this time.

The embodiment of the present invention provides a gauss meter capable of displaying the direction identification of magnetic lines of force. The gauss meter body and the magnetic field probe are made of aviation connectors, which are easy to insert and pull out, and can be locked tightly; the position and direction of the probe displayed by the display module are clear. The object can clearly indicate the magnetic pole and the direction of the magnetic field lines of the measurement object. When measuring the space magnetic field, the direction of the magnetic field lines can be clearly understood according to the direction of the probe, which helps the user to accurately know the magnetic field in the measured scene.

In one embodiment, the aviation socket further has a cover cap made of flexible material for covering the aviation socket; the extended end of the cap is fixedly sleeved on the outer circumference of the aviation socket; when stored, the Gauss meter body and the magnetic field probe are not connected , Cover the cap of flexible material on the aviation socket to prevent the intrusion of dust and help prolong the service life; at the same time, in order to avoid the loss of the cap, the extension end has a ring sleeve, which is sleeved on the outer circumference of the aviation socket.

As shown in FIG. 2 , the Gauss meter body 1 is provided with a button module, and the button module includes a plurality of buttons; wherein, at least one button is provided with a protrusion, and a silicone material button can be selected to improve comfort. For example: the middle button is the switch button, and the upper left button is the peak button. During the measurement process, the measured maximum value can be kept displayed on the screen, which can eliminate the reading change caused by the position number of the measuring probe. The button on the upper right side is the reset button, after pressing it, the reading on the screen can be reset to zero. The lower left button is the unit switching button. After pressing, the conversion between mT and Gs units can be realized. The button on the lower right side is a backlit button. After pressing, for example, in a dark environment, the screen backlight is turned on, which is easy to see the data; the brightness is soft and comfortable, which is convenient for users to use in a dark night environment.

In one embodiment, the shell material of the Gauss meter body 1 can be aluminum alloy or engineering plastic; for example, when engineering plastic is selected, it has high rigidity, low creep, high mechanical strength, good heat resistance, and good electrical insulation, and can be used in Long-term use in harsh chemical and physical environments. When aluminum alloy is selected, it has high strength and light weight, which can better protect the internal components.

In one embodiment, in order to facilitate hand-holding, a plurality of anti-skid protrusions 17 can be provided on both sides of the casing of the Gauss meter body 1, for example, the anti-skid protrusions are in the shape of strips or dots; it can also be a concave structure; the purpose It is to avoid hand slippage, resulting in falling.

In one embodiment, the backside of the Gauss meter body 1 is provided with a groove and/or a clamping portion, which can facilitate the user to fix it on a wall, or, for example, when carrying it, clamp it on a belt around the waist.

As shown in FIG. 8 , there is a movable bracket 18 on the back of the Gauss meter body 1. For example, when in use, the bracket can be opened and placed on the desktop; after use, the storage bracket is hidden in the placement slot on the back.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, provided that these 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 these modifications and variations.

Claims (10)

1. a gauss meter capable of displaying magnetic field line direction identification, is characterized in that, comprises: gauss meter body and magnetic field probe; Wherein, one end of the gauss meter body is provided with an aviation socket, and a connection shell with threads is arranged on the outer periphery of the aviation socket; The magnetic field probe is composed of an aviation plug, a wire, a handle, a ruler and a Hall sensor; the ruler is installed at one end of the handle, and the Hall sensor is installed on any surface of the ruler; the other end of the handle passes through The wire is connected to the aviation plug; the aviation plug is provided with a bolt; the aviation plug is correspondingly connected to the aviation socket, and the bolt is used to be screwed on the connection shell; The gauss meter body includes: a display module for displaying a probe position identification as a reference object, and displaying a magnetic pole and magnetic field line direction identification with the probe position identification as a reference object. 2 . The gauss meter capable of displaying the direction of magnetic field lines according to claim 1 , wherein the aviation socket further has a cap of a flexible material, which is used to cover the aviation socket; 2 . The extended end of the cap is fixedly sleeved on the outer circumference of the aviation socket. 3. A gauss meter capable of displaying magnetic field line direction signs according to claim 1, wherein a button module is provided on the Gauss meter body, and the button module comprises a plurality of buttons; wherein, on at least one button Features bulges. 4 . The gauss meter capable of displaying the direction of magnetic field lines according to claim 1 , wherein the material of the outer shell of the Gauss meter body is aluminum alloy or engineering plastic. 5 . 5 . The Gauss meter capable of displaying the direction of magnetic field lines according to claim 4 , wherein the end faces on both sides of the outer casing of the Gauss meter body are provided with a plurality of anti-skid protrusions, and the anti-skid protrusions are strip-shaped. 6 . or dotted. 6 . The gauss meter capable of displaying the direction of magnetic field lines according to claim 1 , wherein a groove and/or a clamping portion is provided on the back of the gauss meter body. 7 . 7 . The gauss meter according to claim 1 , wherein a gauss meter capable of displaying the direction of magnetic field lines is provided, wherein a movable bracket is provided on the back of the gauss meter body. 8 . 8 . The gauss meter capable of displaying the direction of magnetic field lines according to claim 1 , wherein the Hall sensor is coated with a transparent encapsulation glue and fixed on the surface of the scale. 9 . 9 . The gauss meter capable of displaying the direction identification of magnetic field lines according to claim 1 , wherein the display module is an LED backlight display screen. 10 . 10 . The gauss meter according to claim 1 , wherein a rechargeable 9V lithium battery is built into the body of the gauss meter. 10 .

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