Spindle-shaped structure measuring probe structure assembly and measuring device

Abstract

The utility model relates to the technical field of magnetic field vector measurement, in particular to a spindle-type structure measuring probe structure assembly and a measuring device. The utility model relates to a spindle-shaped structure measuring probe structure assembly. The spindle-shaped structure measuring probe structure assembly comprises a spindle-shaped insulating shell, wherein the spindle-shaped insulating shell is composed of a first connecting rod, a second connecting rod, a third connecting rod and a circuit board mounting support which are sequentially connected from top to bottom; the X-axis magnetic flux sensor circuit board, the Y-axis magnetic flux sensor circuit board and the Z-axis magnetic flux sensor circuit board are arranged on each side wall of the circuit board mounting support in an orthogonal structure combination pasting and clamping manner; the offset between the sensitive axis of the X-axis magnetic flux sensor circuit board, the offset between the sensitive axis of the Y-axis magnetic flux sensor circuit board and the offset between the sensitive axis of the Z-axis magnetic flux sensor circuit board and the measurement space point are all # imgabs0 #. The device is simple in overall structure, extremely low in cost, still capable of meeting the requirement for teaching precision, and high in measurement stability.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic field vector measurement, in particular to a spindle-shaped structure measurement probe structure component and a measuring device. Background Art

[0002] In today's university physics experiment teaching, some electromagnetic experimental equipment is usually used to help students understand and demonstrate related physical concepts. These equipment may include but are not limited to: Hall effect sensors, magnetoresistive sensors, magnetic field distribution scanning systems, etc. When the magnetic field strength is low, it is usually called a weak magnetic field when the strength is at the nanotesla (nT) or even picotesla (pT) level. Common devices for measuring this type of weak magnetic field include fluxgate magnetometers and Hall effect sensors; however, in actual teaching, there is no teaching equipment for verifying the curl theorem of weak magnetic fields, and there is no further measurement equipment for static magnetic field vectors; it is well known that the measurement probe is a key device in the magnetic field measurement system, but in the existing teaching equipment, a single-core fluxgate magnetometer can only detect the magnetic field in a certain direction. If three magnetic field components (Bx, By, Bz) need to be detected at the same time, three cores need to be combined into a three-dimensional fluxgate magnetometer. This type of equipment is not suitable for teaching the curl theorem.

[0003] Based on this, those skilled in the art are in urgent need of providing a static magnetic field measurement probe that is both suitable for teaching and low-cost. Utility Model Content

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects existing in the above-mentioned prior art, thereby providing a measuring probe structure component and a measuring device for measuring a static magnetic field vector.

[0005] A spindle-shaped structure measuring probe structural assembly, comprising: an X-axis magnetic flux sensor circuit board, a Y-axis magnetic flux sensor circuit board, a Z-axis magnetic flux sensor circuit board, a semiconductor laser power supply and a semiconductor laser, and also comprising: a spindle-shaped insulating shell, the spindle-shaped insulating shell is composed of a first connecting rod, a second connecting rod, a third connecting rod and a circuit board mounting support connected in sequence from top to bottom;

[0006] The X-axis magnetic flux sensor circuit board, the Y-axis magnetic flux sensor circuit board and the Z-axis magnetic flux sensor circuit board are arranged on the side walls of the circuit board mounting support by an orthogonal structure combined with pasting and clamping; and the offset of the sensitive axis of the X-axis magnetic flux sensor circuit board, the Y-axis magnetic flux sensor circuit board and the Z-axis magnetic flux sensor circuit board from the measurement space point is ;

[0007] The semiconductor laser power supply is arranged in the inner cavity of the first connecting rod; the semiconductor laser is arranged in the inner cavity of the circuit board mounting seat; the semiconductor laser power supply is electrically connected to the semiconductor laser.

[0008] Preferably, three grooves are provided on the circuit board mounting seat, namely the X-axis groove, the Y-axis groove, and the Z-axis groove;

[0009] The Y-axis groove is located at the lower left corner of any side surface of the circuit board mounting seat. The Y-axis groove is a three-sided open structure, and the three open directions are respectively open along the Y-axis direction, open along the opposite direction of the X-axis, and open along the opposite direction of the Z-axis; the top groove wall and the right groove wall of the Y-axis groove form an L-shaped limiting structure;

[0010] The X-axis groove is located on the right side surface of the surface of the circuit board mounting seat where the Y-axis groove is located. The X-axis groove is a three-sided open structure, and the three open directions are respectively along the X-axis direction, along the Z-axis direction, and along the opposite direction of the Z-axis; the width of the left groove wall of the X-axis groove < the width of the right groove wall of the X-axis groove;

[0011] The Z-axis groove is located on the surface of the circuit board mounting seat opposite to the surface where the Y-axis groove is located. The Z-axis groove is a three-sided open structure, and the three open directions are respectively along the opposite direction of the Y-axis, along the Z-axis direction, and along the opposite direction of the Z-axis; the width of the left groove wall of the Z-axis groove = the width of the right groove wall.

[0012] Preferably, a top through hole is provided at the top of the first connecting rod.

[0013] Preferably, the second connecting rod is provided with arched through holes adapted to the positions of the X-axis flux sensor circuit board, the Y-axis flux sensor circuit board, and the Z-axis flux sensor circuit board, namely the X-axis through hole, the Y-axis through hole, and the Z-axis through hole;

[0014] The wire harness connected to the X-axis flux sensor circuit board is connected to the power supply component of the static magnetic field vector measuring device after passing through the X-axis through hole and the top through hole;

[0015] The wire harness connected to the Y-axis flux sensor circuit board is connected to the power supply component of the static magnetic field vector measuring device after passing through the Y-axis through hole and the top through hole;

[0016] The wire harness connected to the Z-axis flux sensor circuit board is connected to the power supply component of the static magnetic field vector measuring device after passing through the Z-axis through hole and the top through hole.

[0017] Preferably, the distance between the magnetic core and the top surface of the X-axis flux sensor circuit board in the X-axis flux sensor circuit board is 0.4 mm ± 0.025 mm;

[0018] The distance between the magnetic core and the top surface of the Y-axis flux sensor circuit board in the Y-axis flux sensor circuit board is 0.4 mm ± 0.025 mm;

[0019] The distance between the magnetic core in the Z-axis magnetic flux sensor circuit board and the top surface of the Z-axis magnetic flux sensor circuit board is 0.4 mm±0.025 mm.

[0020] Preferably, the direction of the sensitivity axis in the X-axis magnetic flux sensor circuit board is from the sensor coil to the compensation coil;

[0021] The direction of the sensitivity axis in the Y-axis magnetic flux sensor circuit board is from the sensor coil to the compensation coil;

[0022] The direction of the sensitivity axis in the Z-axis magnetic flux sensor circuit board is from the sensor coil to the compensation coil.

[0023] Preferably, the chip used in the X-axis magnetic flux sensor circuit board, the Y-axis magnetic flux sensor circuit board, and the Z-axis magnetic flux sensor circuit board is an integrated magnetic flux sensor chip of model DRV425.

[0024] Preferably, the spindle-shaped insulating shell is integrally formed using 3D printing technology.

[0025] A measuring device for measuring magnetic field vectors, comprising a spindle-shaped structure measuring probe structural component, and also comprising: three legs with the same structural size, a power supply component and a computer;

[0026] The bottom end of the power supply component is connected to the top ends of the three legs to form a three-axis stable structure;

[0027] The top end of the measuring probe structural component is fixedly connected to the bottom end of the power supply component, and the measuring probe structural component is electrically connected to the power supply component;

[0028] The measuring probe structure component is connected with the computer by wireless signal;

[0029] The outer wall of the power supply component is provided with a Permalloy magnetic shielding layer.

[0030] Preferably, a screen adjustment knob is provided at the bottom end of the leg.

[0031] The technical solution of the utility model has the following advantages:

[0032] The utility model provides a spindle-shaped structure measurement probe structure component and a measuring device suitable for curl theorem teaching, which have a simple overall structure and extremely low cost while still meeting the teaching accuracy requirements and have high measurement stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 This is a schematic diagram of the overall structure of the spindle-shaped insulating housing of the utility model;

[0035] Figure 2 This is a bottom view of the spindle-shaped insulating housing of the utility model;

[0036] Figure 3 It is a side sectional view of the spindle-shaped insulating shell of the utility model.

[0037] Description of reference numerals:

[0038] 1-first connecting rod; 11-top through hole; 12-top reserved hole; 2-second connecting rod; 21-X-axis through hole; 22-Y-axis through hole; 23-Z-axis through hole; 3-third connecting rod; 4-circuit board mounting support; 41-X-axis groove; 42-Y-axis groove; 43-Z-axis groove; 51-first pulling arm; 52-second pulling arm; 53-third pulling arm. DETAILED DESCRIPTION

[0039] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0043] Example 1

[0044] This embodiment discloses a spindle-shaped structure measurement probe structure assembly, including: an X-axis magnetic flux sensor circuit board, a Y-axis magnetic flux sensor circuit board, a Z-axis magnetic flux sensor circuit board, a semiconductor laser power supply and a semiconductor laser, and also includes: Figure 1-3 A spindle-shaped insulating housing, which is composed of a first connecting rod 1, a second connecting rod 2, a third connecting rod 3 and a circuit board mounting support 4 connected in sequence from top to bottom; the first connecting rod 1, the second connecting rod 2, the third connecting rod 3 and the circuit board mounting support 4 are all quadrangular pyramid structures and the size of the first connecting rod 1> the size of the second connecting rod 2> the size of the third connecting rod 3; the size of the circuit board mounting support 4> the size of the third connecting rod 3;

[0045] It should be noted that although there are technologies in the existing three-axis magnetic field measurement that can provide the direction of the magnetic field vector at the same time as the measurement, such as the traditional vector magnetic field measurement method based on the SERF spin exchange relaxation free magnetometer, this type of method requires the application of a radio frequency magnetic field of a specific frequency and phase in the X-axis and Y-axis directions of the three-dimensional magnetic field coil; it is not suitable for the teaching application of the curl theorem.

[0046] The existing three-axis fluxgate sensor mounting base is usually a cube or rectangular structure with a symmetrical double-hole or multi-hole structure inside for placing a single-axis magnetic core; or some traditional designs use a U-shaped magnetic core, and the mounting base will be optimized according to the shape of the magnetic core to better fix the magnetic core. This type of method usually causes obvious temperature concentration at the intersection of the three axes, causing temperature drift to the sensor. Traditional installation methods such as slots, potting, and bolt connections will introduce additional mechanical stress;

[0047] Therefore, in this embodiment, the X-axis flux sensor circuit board, the Y-axis flux sensor circuit board, and the Z-axis flux sensor circuit board are arranged on the side walls of the circuit board mounting support 4 in an orthogonal structure by combining pasting and clamping methods; specifically: there are three grooves on the circuit board mounting support 4, specifically the X-axis groove 41, the Y-axis groove 42, and the Z-axis groove 43;

[0048] The Y-axis groove 42 is located at the lower left corner of any side surface of the circuit board mounting support 4. The Y-axis groove 42 is a three-sided open structure, and the three open directions are respectively open along the Y-axis direction, open along the reverse X-axis direction, and open along the reverse Z-axis direction; the top groove wall and the right groove wall of the Y-axis groove 42 form an L-shaped limiting structure;

[0049] The X-axis groove 41 is located on the right side surface of the surface of the circuit board mounting support 4 where the Y-axis groove 42 is located. The X-axis groove 41 is a three-sided open structure, and the three open directions are respectively along the X-axis direction, along the Z-axis direction, and along the reverse Z-axis direction; the width of the left groove wall of the X-axis groove 41 < the width of the right groove wall of the X-axis groove 41;

[0050] The Z-axis groove 43 is located on the surface of the circuit board mounting support 4 opposite to the surface where the Y-axis groove 42 is located. The Z-axis groove 43 is a three-sided open structure, and the three open directions are respectively along the reverse Y-axis direction, along the Z-axis direction, and along the reverse Z-axis direction; the width of the left groove wall of the Z-axis groove 43 = the width of the right groove wall.

[0051] And the offset of the sensitive axes of the X-axis flux sensor circuit board, the Y-axis flux sensor circuit board, and the Z-axis flux sensor circuit board from the measurement space point is all ;

[0052] The semiconductor laser power supply is arranged in the internal cavity of the first connecting rod 1; the semiconductor laser is arranged in the internal cavity of the circuit board mounting support 4; the semiconductor laser power supply and the semiconductor laser are electrically connected, and the laser of the semiconductor laser is emitted from the bottom through hole of the circuit board mounting support.

[0053] Specifically:

[0054] In this embodiment, the top of the first connecting rod 1 is provided with a top through hole 11.

[0055] Furthermore, in this embodiment, the second connecting rod 2 is provided with 3 arched through holes adapted to the positions of the X-axis flux sensor circuit board, the Y-axis flux sensor circuit board, and the Z-axis flux sensor circuit board, namely the X-axis through hole 21, the Y-axis through hole 22, and the Z-axis through hole 23;

[0056] The wire harness connected to the X-axis flux sensor circuit board is connected to the power supply component of the measurement static magnetic field vector device after passing through the X-axis through hole 21 and the top through hole 11;

[0057] The wiring harness connected to the Y-axis magnetic flux sensor circuit board passes through the Y-axis through hole 22 and the top through hole 11 and is connected to the power supply component of the static magnetic field vector measuring device;

[0058] The wiring harness connected to the Z-axis magnetic flux sensor circuit board passes through the Z-axis through hole 23 and the top through hole 11 and is connected to the power supply component of the static magnetic field vector measuring device.

[0059] Three pulling arms are provided on the outer wall of the third connecting rod 3 of the inner cavity, namely a first pulling arm 51, a second pulling arm 52 and a third pulling arm 53;

[0060] The second pulling arm 52 and the third pulling arm 53 have the same structure, are respectively arranged at two vertex corners of the third connecting rod 3 on the same side as the X-axis groove 41, and are fixedly connected to the second connecting rod 2;

[0061] The first pulling arm 51 disposed at the top end of the third connecting rod 3 on the side opposite to the X-axis groove 41 is fixedly connected to the second connecting rod 2 .

[0062] It should be noted that the three identical magnetic flux sensor circuit boards used in this embodiment are specifically:

[0063] The distance between the magnetic core in the X-axis magnetic flux sensor circuit board and the top surface of the X-axis magnetic flux sensor circuit board is 0.4mm±0.025mm;

[0064] The distance between the magnetic core in the Y-axis magnetic flux sensor circuit board and the top surface of the Y-axis magnetic flux sensor circuit board is 0.4mm±0.025mm;

[0065] The distance between the magnetic core in the Z-axis magnetic flux sensor circuit board and the top surface of the Z-axis magnetic flux sensor circuit board is 0.4 mm±0.025 mm.

[0066] The direction of the sensitivity axis in the X-axis magnetic flux sensor circuit board is from the sensor coil to the compensation coil;

[0067] The direction of the sensitivity axis in the Y-axis magnetic flux sensor circuit board is from the sensor coil to the compensation coil;

[0068] The direction of the sensitivity axis in the Z-axis magnetic flux sensor circuit board is from the sensor coil to the compensation coil.

[0069] In this embodiment, the chip used in the X-axis magnetic flux sensor circuit board, the Y-axis magnetic flux sensor circuit board, and the Z-axis magnetic flux sensor circuit board is an integrated magnetic flux sensor chip of model DRV425.

[0070] In this embodiment, the spindle-shaped insulating shell is integrally formed using 3D printing technology.

[0071] Example 2

[0072] A measuring device for measuring a magnetic field vector, specifically for measuring a static magnetic field, the measuring device comprising the measuring probe structure assembly of embodiment 1, and further comprising: three legs of the same structural size, a power supply component and a computer;

[0073] The bottom end of the power supply component is connected to the top ends of the three legs to form a three-axis stable structure;

[0074] The top reserved hole 12 of the measuring probe structural component is fixedly connected to the bottom end of the power supply component, and the measuring probe structural component is electrically connected to the power supply component;

[0075] The measuring probe structure component is connected with the computer by wireless signal;

[0076] The outer wall of the power supply component is provided with a Permalloy magnetic shielding layer.

[0077] A video screen adjustment knob is provided at the bottom of the outrigger.

[0078] It should be noted that, in actual measurement, the longitude and latitude coordinates of the measuring point are obtained in advance using a gyroscope, and in this embodiment, the measuring probe structure assembly and the computer are specifically connected using Bluetooth, which avoids interference of cables on static magnetic field measurement.

[0079] In actual application, since it is a teaching device, the actual test is carried out on the school playground. In order to eliminate the influence of the geomagnetic field and the environmental interference magnetic field, a 0.15mm Permalloy magnetic shielding layer is used to effectively shield the interference factors and realize the accurate measurement of the magnetic field. The measurement results are as follows: Figure 3 The degree of consistency shown with the theoretical guidelines meets teaching needs.

[0080] Actual working parameters:

[0081] 1. Magnetic field strength measurement range: 0.5μT-1100;

[0082] 2. Magnetic field measurement accuracy: 1.5%; measurement standard deviation;

[0083] 3. The direction cosines of the magnetic field vector are greater than -1 and less than +1;

[0084] 4. Power supply: polymer lithium battery 12VDC;

[0085] 5. Temperature range: -40℃+40℃, relative humidity ≤95%RH;

[0086] 6. Perform measurements in an environment without interfering magnetic fields, including upper and lower floors of buildings.

[0087] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A spindle-shaped structure measuring probe structural component, characterized in that: Comprising: X-axis flux sensor circuit board, Y-axis flux sensor circuit board, Z-axis flux sensor circuit board, semiconductor laser power supply and semiconductor laser, further comprising: a spindle-shaped insulating housing, which is composed of a first connecting rod (1), a second connecting rod (2), a third connecting rod (3) and a circuit board mounting seat (4) connected in sequence from top to bottom; The X-axis magnetic flux sensor circuit board, the Y-axis magnetic flux sensor circuit board and the Z-axis magnetic flux sensor circuit board are arranged on the side walls of the circuit board mounting support (4) in an orthogonal structure combined with a bonding and clamping method; and the offset of the sensitive axis of the X-axis magnetic flux sensor circuit board, the Y-axis magnetic flux sensor circuit board and the Z-axis magnetic flux sensor circuit board from the measurement space point is ; The semiconductor laser power supply is arranged in the inner cavity of the first connecting rod (1); the semiconductor laser is arranged in the inner cavity of the circuit board mounting seat (4); the semiconductor laser power supply and the semiconductor laser are electrically connected.

2. The spindle-shaped structure measurement probe structure assembly according to claim 1, characterized in that: The circuit board mounting seat (4) is provided with three grooves, namely an X-axis groove (41), a Y-axis groove (42) and a Z-axis groove (43); The Y-axis groove (42) is located at the lower left corner of any side surface of the circuit board mounting seat (4). The Y-axis groove (42) is a three-sided opening structure, and the three opening directions are respectively opening along the Y-axis direction, opening along the reverse X-axis direction and opening along the reverse Z-axis direction; the top groove wall and the right groove wall of the Y-axis groove (42) form an L-shaped limiting structure; The X-axis groove (41) is located on the right side surface of the surface of the circuit board mounting seat (4) where the Y-axis groove (42) is located. The X-axis groove (41) is a three-sided opening structure, and the three opening directions are respectively along the X-axis direction, along the Z-axis direction and along the reverse Z-axis direction; the width of the left groove wall of the X-axis groove (41) < the width of the right groove wall of the X-axis groove (41); The Z-axis groove (43) is located on the surface of the circuit board mounting seat (4) opposite to the surface where the Y-axis groove (42) is located. The Z-axis groove (43) is a three-sided opening structure, and the three opening directions are respectively along the reverse Y-axis direction, along the Z-axis direction and along the reverse Z-axis direction; the width of the left groove wall of the Z-axis groove (43) = the width of the right groove wall.

3. The spindle-shaped structure measurement probe structure assembly according to claim 1, characterized in that: The top of the first connecting rod (1) is provided with a top through hole (11).

4. The spindle-shaped structure measurement probe structure assembly according to claim 3, characterized in that: The second connecting rod (2) is provided with 3 arched through holes adapted to the positions of the X-axis flux sensor circuit board, the Y-axis flux sensor circuit board and the Z-axis flux sensor circuit board, namely an X-axis through hole (21), a Y-axis through hole (22) and a Z-axis through hole (23); The wire harness connected to the X-axis flux sensor circuit board passes through the X-axis through hole (21) and the top through hole (11) and then is connected to the power supply component of the static magnetic field vector measurement device; The wire harness connected to the Y-axis flux sensor circuit board passes through the Y-axis through hole (22) and the top through hole (11) and then is connected to the power supply component of the static magnetic field vector measurement device; The wire harness connected to the Z-axis flux sensor circuit board passes through the Z-axis through hole (23) and the top through hole (11) and then is connected to the power supply component of the static magnetic field vector measurement device.

5. The spindle-shaped structure measurement probe structure assembly according to claim 1, characterized in that: The distance between the magnetic core and the top surface of the X-axis flux sensor circuit board in the X-axis flux sensor circuit board is 0.4mm ± 0.025mm; The distance between the magnetic core and the top surface of the Y-axis flux sensor circuit board in the Y-axis flux sensor circuit board is 0.4mm ± 0.025mm; The distance between the magnetic core and the top surface of the Z-axis flux sensor circuit board in the Z-axis flux sensor circuit board is 0.4mm ± 0.025mm.

6. The spindle-shaped structure measurement probe structure assembly according to claim 1, characterized in that: In the X-axis flux sensor circuit board, the direction of the sensitivity axis is from the sensor coil to the compensation coil; The direction of the sensitivity axis in the Y-axis magnetic flux sensor circuit board is from the sensor coil to the compensation coil; The direction of the sensitivity axis in the Z-axis magnetic flux sensor circuit board is from the sensor coil to the compensation coil.

7. The spindle-shaped structure measurement probe structure assembly according to claim 1, characterized in that: The chip used in the X-axis magnetic flux sensor circuit board, the Y-axis magnetic flux sensor circuit board, and the Z-axis magnetic flux sensor circuit board is an integrated magnetic flux sensor chip of model DRV425.

8. The spindle-shaped structure measurement probe structure assembly according to claim 1, characterized in that: The spindle-shaped insulating shell is formed in one piece using 3D printing technology.

9. A measuring device for measuring a magnetic field vector, characterized in that: A spindle-shaped structure measuring probe structure assembly comprising any one of claims 1 to 8, further comprising: three legs of the same structural size, a power supply component and a computer; The bottom end of the power supply component is connected to the top ends of the three legs to form a three-axis stable structure; The top end of the measuring probe structural component is fixedly connected to the bottom end of the power supply component, and the measuring probe structural component is electrically connected to the power supply component; The measuring probe structure component is connected with the computer by wireless signal; The outer wall of the power supply component is provided with a Permalloy magnetic shielding layer.

10. The device for measuring a magnetic field vector according to claim 9, characterized in that: A video screen adjustment knob is provided at the bottom of the outrigger.

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