Atomic magnetometer probe with magnetic coil

Abstract

The utility model relates to an atomic magnetometer probe with a magnetic coil in the field of magnetic field detection equipment, which is provided with a heat insulation sleeve with an arc-shaped upper part and a clamping mechanism comprising an extrusion plate, and utilizes a spring telescopic rod connected with the extrusion plate to enable the extrusion plate to extrude and fix a coil patch on the outer side of the heat insulation sleeve. The quick fixation of the coil patch is realized; meanwhile, through a transverse moving rod connected with the extrusion plate and an extrusion rod matched with the transverse moving rod, when the coil patch needs to be replaced, a poke rod linked with the extrusion rod is poked, so that the transverse moving rod drives the extrusion plate to be away from the coil patch, and rapid replacement of the coil patch is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of atomic magnetometer probes, in particular to a kind of atomic magnetometer probe with magnetic coil applied to magnetic field detection equipment field. BACKGROUND

[0002] The probe internal structure of atomic magnetometer is precise and efficient, mainly by laser, atomic gas chamber and photoelectric sensor three major core components.It is precise in the internal structure of atomic magnetometer probe, in addition to laser, atomic gas chamber and photoelectric sensor, it is also equipped with the key magnetic field system, which is mainly responsible for the stability control and uniformity adjustment of magnetic field, the system generates the required magnetic field by the current loaded in the electromagnetic coil fixed outside the atomic gas chamber, however, as the core component affecting detection accuracy, electromagnetic coil is extremely vulnerable in high-frequency use, needs to be replaced regularly, the problem is that, the existing magnetometer probe adopts single cable winding electromagnetic coil, and is fixed to the outside of atomic gas chamber by bonding method, since atomic gas chamber generates higher temperature when working, plus the continuous high-temperature environment brought by high-frequency use, electromagnetic coil is extremely vulnerable to aging or even damage, but the process of replacing these coils is extremely cumbersome, needs to disassemble multiple components, time-consuming, and brings great inconvenience to the maintenance and use of equipment.

[0003] The patent with the existing publication number CN112180303A discloses a magnetometer probe, comprising: a static magnetic field generating device, a control field generating device, a solid-state spin-based magnetic sensitive unit, and a signal receiving and converting unit; the static magnetic field generating device is used to generate a stable static magnetic field; the control field generating device is a microstrip line structure or a coplanar waveguide structure, used to generate a control field; the solid-state spin-based magnetic sensitive unit is located in the stable static magnetic field and the measured magnetic field, under the action of external light source and the control field, the electron spin state in the solid-state spin undergoes transition, generating fluorescence signal; the signal receiving and converting unit is used to receive the fluorescence signal and convert it into an electric signal, which contains information of the measured magnetic field. The control field generating device is provided with a light-transmitting part to make the fluorescence signal transmit to the signal receiving and converting unit through the light-transmitting part. The disclosure also provides a magnetic field measurement method.

[0004] The above patent does not solve the problem of how to realize the replacement of electromagnetic coil in the probe. UTILITY MODEL CONTENT

[0005] For the above prior art, the technical problem to be solved by the utility model is the replacement of electromagnetic coil in the existing atomic magnetometer probe.

[0006] To address the aforementioned issues, this utility model provides an atomic magnetometer probe with a magnetic coil, comprising a probe body; the probe body includes a housing, within which a mounting plate is fixedly connected, and on the mounting plate are linearly arranged lasers, a gas chamber assembly, and a photoelectric sensor; the gas chamber assembly includes a snap-fit ​​frame, with an arc-shaped heat insulation sleeve snapped onto the upper part of the snap-fit ​​frame, an atomic gas chamber fixedly nested within the heat insulation sleeve, and a coil patch abutting against the outer side of the heat insulation sleeve, the coil patch being made by printing a flexible coil onto a polyester film; the snap-fit ​​frame is provided with a pressing mechanism for pressing and fixing the coil patch onto the outer wall of the heat insulation sleeve;

[0007] The extrusion mechanism includes a pair of extrusion plates abutting against the outer side of the coil patch. The upper part of the outer wall of the extrusion plate is connected to the inner wall of the snap-fit ​​frame via a spring telescopic rod. A transverse rod is fixedly connected to the middle of the outer wall of the extrusion plate. The transverse rod is slidably connected to the side wall of the snap-fit ​​frame. An extrusion groove is opened in the middle of the transverse rod. An extrusion rod that cooperates with the extrusion groove is provided below the extrusion groove. When the extrusion rod moves upward and inserts into the extrusion groove, it pushes the transverse rod to move laterally outward. The extrusion rod extends to the lower part of the snap-fit ​​frame and is fixedly connected to a toggle rod. The toggle rod is slidably connected to a support leg that is fixedly connected to the snap-fit ​​frame. The support leg is fixedly connected to the mounting plate.

[0008] In the aforementioned atomic magnetometer probe with a magnetic coil, the probe's electromagnetic coil can be quickly replaced via a wire patch printed with the electromagnetic coil and a clamping mechanism.

[0009] As a further improvement of this application, a nested contact piece is fixed in the middle of the side wall of the extrusion plate facing the coil patch. The coil patch has contact points at both ends that abut against the contact piece. The contact piece is connected to a circuit board assembly through wires. The circuit board assembly is fixedly connected to the mounting plate.

[0010] As a further improvement of this application, the housing includes a cylinder and an end cap that is threadedly connected to the cylinder. The left end of the mounting plate is threadedly connected to the inner wall of the end cap by an inner bolt, and the right end of the mounting plate is fixedly connected to the cylinder by an outer bolt that penetrates the cylinder.

[0011] As a further improvement of this application, the heat insulation sleeve is made of heat insulation rubber material, and a cavity for accommodating the atomic gas chamber is opened inside the heat insulation sleeve. A pair of light holes communicating with the cavity are opened on the left and right sides of the heat insulation sleeve, and the light holes are set opposite to the laser.

[0012] As a further improvement of this application, the snap-fit ​​frame is a hollow box structure with an open top, the heat insulation sleeve is interference-fitted with the inner cavity of the snap-fit ​​frame, and the outer wall of the heat insulation sleeve is provided with a nesting groove for accommodating the coil patch.

[0013] As a further improvement of the application, the cross section of the extrusion groove is in the shape of an isosceles trapezoid with the upper part narrower and the lower part wider, the cross section of the upper part of the extrusion rod is in the shape of a right triangle, and the side wall of the clamping frame is provided with a horizontal cavity for the horizontal movement of the horizontal moving rod, and the lower part of the clamping frame is provided with a vertical cavity for the vertical sliding of the extrusion rod.

[0014] As a further improvement of the application, the support leg is provided with a vertical sliding groove for the vertical sliding of the pushing rod, and the pushing rod extends to the outside of the support leg and is provided with a bent part in the shape of L.

[0015] As a further improvement of the application, the contact piece is an arc-shaped metal plate, the contact point is a metal contact point exposed on the surface of the coil patch, the extrusion plate is provided with a receiving cavity for accommodating the contact piece, and the two ends of the contact piece are fixedly connected with the inner wall of the receiving cavity through fixing bolts.

[0016] As a further improvement of the application, the cylinder and the end cover are both in the shape of a cylinder, and both are provided with thread protrusions matched with each other at the joint, and a sealing ring is arranged at the joint.

[0017] In summary, the utility model discloses a heat insulation sleeve with an upper part in the shape of an arc and a clamping mechanism comprising an extrusion plate, the coil patch is fixed on the outside of the heat insulation sleeve by the extrusion plate connected with a spring telescopic rod, and the coil patch is quickly fixed, meanwhile, when the coil patch needs to be replaced, the extrusion plate is driven away from the coil patch by the horizontal moving rod connected with the extrusion plate and the extrusion rod matched with the horizontal moving rod, and the coil patch is quickly replaced by the pushing rod connected with the extrusion rod. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0019] Figure 2 It is an internal structure schematic diagram of the shell in the utility model;

[0020] Figure 3 It is a longitudinal section structure schematic diagram of the air chamber assembly in the utility model;

[0021] Figure 4 It is Figure 3 It is an enlarged structure schematic diagram of A in the utility model;

[0022] Figure 5 It is an assembly structure schematic diagram of the heat insulation sleeve in the utility model;

[0023] Figure 6 It is a three-dimensional structure schematic diagram of the coil patch in the utility model;

[0024] Figure 7 It is a section structure schematic diagram of the extrusion plate in the utility model;

[0025] Figure 8A schematic diagram of the three-dimensional structure of the contact patch in the present application;

[0026] Figure 9 A schematic diagram of the disengagement state of the extrusion plate and the coil patch in the present application.

[0027] Explanation of the reference numerals in the drawings:

[0028] 1, housing; 101, cylinder; 102, end cover; 2, mounting plate; 3, laser; 4, gas chamber assembly; 5, photoelectric sensor; 6, inner bolt; 7, outer bolt; 8, heat insulation sleeve; 801, cavity; 802, light hole; 803, nesting groove; 9, atomic gas chamber; 10, coil patch; 1001, contact; 11, clamping frame; 1101, horizontal cavity; 1102, vertical cavity; 12, extrusion plate; 13, spring telescopic rod; 14, transverse rod; 1401, extrusion groove; 15, extrusion rod; 16, push rod; 1601, bent part; 17, support leg; 1701, vertical sliding groove; 18, contact patch; 19, wire; 20, circuit board assembly; 21, external cable. DETAILED DESCRIPTION

[0029] The two embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0030] First embodiment:

[0031] Figures 1-9 A kind of atomic magnetometer probe with magnetic coil is shown, including probe body;Probe body includes housing 1, housing 1 is fixedly connected with mounting plate 2, mounting plate 2 is fixedly connected with linearly arranged laser 3, gas chamber assembly 4 and photoelectric sensor 5;

[0032] Please refer to Figures 3-5 Gas chamber assembly 4 includes clamping frame 11, clamping frame 11 upper portion is clamped with the upper portion of arc-shaped heat insulation sleeve 8, heat insulation sleeve 8 is fixedly nested with atomic gas chamber 9, heat insulation sleeve 8 outer side is abutted with coil patch 10, coil patch 10 is made by printing a layer of flexible coil on polyester film, extrusion mechanism for extruding and fixing coil patch 10 on the outer wall of heat insulation sleeve 8 is arranged in clamping frame 11;

[0033] Please refer to Figure 4 And Figure 7, the extrusion mechanism includes a pair of extrusion plates 12 abutting the outer side of the coil patch 10, the outer wall of the extrusion plate 12 is connected to the inner wall of the clamping frame 11 through the spring telescopic rod 13, the spring telescopic rod 13 makes the extrusion plate 12 adhere to the coil patch 10 when the extrusion plate 12 is not subjected to external force, the outer wall of the extrusion plate 12 is fixedly connected with a transverse moving rod 14, the transverse moving rod 14 is transversely and slidingly connected with the side wall of the clamping frame 11, the transverse moving rod 14 is provided with an extrusion groove 1401 in the middle, and a extrusion rod 15 matched with the extrusion groove 1401 is arranged below the extrusion groove 1401, when the extrusion rod 15 is inserted into the extrusion groove 1401 by moving upward, the transverse moving rod 14 is pushed to move outward, and the transverse moving rod 14 drives the extrusion plate 12 to separate from the coil patch 10;

[0034] Please refer to Figure 3 , the extrusion rod 15 extends to below the clamping frame 11 and is fixedly connected with a push rod 16, the push rod 16 is slidingly connected with a support leg 17 fixedly connected with the clamping frame 11, and the support leg 17 is fixedly connected with the mounting plate 2.

[0035] Specifically, please refer to Figure 9 When the operator needs to replace the electromagnetic coil in the atomic magnetometer probe, the shell 1 is opened, and the push rod 16 is pushed upward, the push rod 16 drives the extrusion rod 15 to move upward, the extrusion rod 15 is inserted into the extrusion groove 1401 of the transverse moving rod 14, a pair of transverse moving rods 14 are simultaneously pushed to move outward, so that a pair of extrusion plates 12 are separated from the two ends of the coil patch 10, then the old coil patch 10 is taken out, and the two ends of the new coil patch 10 are inserted into the gap between the extrusion plate 12 and the heat insulation sleeve 8, thereby realizing efficient replacement of the coil patch 10 of the atomic magnetometer probe.

[0036] Compared with the traditional atomic magnetometer probe, the utility model discloses a heat insulation sleeve 8 in the form of an arc at the upper portion and a clamping mechanism comprising an extrusion plate 12, the extrusion plate 12 is used for extruding and fixing the coil patch 10 on the outer side of the heat insulation sleeve 8 by the spring telescopic rod 13 connected with the extrusion plate 12, thereby realizing rapid fixing of the coil patch 10, and simultaneously, the transverse moving rod 14 connected with the extrusion plate 12 and the extrusion rod 15 matched with the transverse moving rod 14 are used for driving the extrusion plate 12 to move away from the coil patch 10 by the push rod 16 linked with the extrusion rod 15 when the coil patch 10 needs to be replaced, thereby realizing rapid replacement of the coil patch 10.

[0037] Please refer to Figure 5 The heat insulation sleeve 8 is made of heat insulation rubber material, the heat insulation sleeve 8 is provided with a cavity 801 for accommodating the atomic chamber 9, a pair of light holes 802 are formed in the left and right sides of the heat insulation sleeve 8 and are communicated with the cavity 801, and the light holes 802 are oppositely arranged with the laser 3.

[0038] Please refer to Figure 5The clamping frame 11 is a hollow box structure with an open upper end, the heat insulation sleeve 8 is in interference fit with the inner cavity of the clamping frame 11, and the outer wall of the heat insulation sleeve 8 is provided with a nesting groove 803 for accommodating the coil patch 10.

[0039] Specifically, when installing, the atom gas chamber 9 is inserted into the heat insulation sleeve 8, and the heat insulation sleeve 8 is clamped in the clamping frame 11. It should be noted that the heat insulation rubber material is one of silicone rubber and ethylene-propylene rubber.

[0040] Please refer to Figure 4 and Figure 7 , the cross section of the extrusion groove 1401 is an isosceles trapezoid with a narrow upper end and a wide lower end, the upper part of the extrusion rod 15 is a right triangle, and the side wall of the clamping frame 11 is provided with a horizontal cavity 1101 for horizontal movement of the transverse rod 14, and the lower part of the clamping frame 11 is provided with a vertical cavity 1102 for vertical sliding of the extrusion rod 15.

[0041] Specifically, when the extrusion rod 15 moves upward, the right triangle-shaped upper part is inserted into the extrusion groove 1401, and the transverse rod 14 is extruded to move horizontally by the inner wall of the extrusion groove 1401.

[0042] Please refer to Figure 3 , the support leg 17 is provided with a vertical sliding groove 1701 for vertical sliding of the pushing rod 16, and the pushing rod 16 extends to the outside of the support leg 17 and is provided with a bent part 1601 with an L-shaped cross section.

[0043] Specifically, by providing the bent part 1601, it is convenient for personnel to push the pushing rod 16 upward.

[0044] Please refer to Figure 2 and Figure 4 , the extrusion plate 12 is fixed with a nested contact piece 18 in the middle of the side wall on the side facing the coil patch 10, and the coil patch 10 is provided with a contact point 1001 on both sides for abutting contact with the contact piece 18, and the contact piece 18 is connected with a circuit board assembly 20 through a wire 19, and the circuit board assembly 20 is fixedly connected with the mounting plate 2.

[0045] Specifically, the electromagnetic coil printed on the coil patch 10 is powered through the wire 19, the contact piece 18 and the contact point 1001. It should be noted that the circuit board assembly 20 is connected with a magnetometer controller through an external cable 21, and the magnetometer controller is provided with a current adjusting module for loading current to the coil patch 10. As prior art, this application will not be described in detail.

[0046] Please refer to Figure 7 and Figure 8 , the contact piece 18 is an arc-shaped metal plate, the contact point 1001 is a metal contact point exposed on the surface of the coil patch 10, the extrusion plate 12 is provided with an accommodation cavity for accommodating the contact piece 18, and the contact piece 18 is fixedly connected with the inner wall of the accommodation cavity through fixing bolts at both ends.

[0047] Specifically, when the contact patch 18 is close to the contact 1001, the contact patch 18 is pressed by the pressing plate 12, so that the contact patch 18 and the contact 1001 have better contact stability.

[0048] The second embodiment is as follows:

[0049] Figure 2 The atomic magnetometer probe with a magnetic coil is shown, and based on the first embodiment, the shell 1 comprises a barrel 101 and an end cover 102 threadedly connected with the barrel 101, and the left end of the mounting plate 2 is threadedly connected with the inner wall of the end cover 102 through the inner bolt 6, and the right end of the mounting plate 2 is fixedly connected with the barrel 101 through the outer bolt 7 penetrating the barrel 101.

[0050] Specifically, by providing the barrel 101 and the end cover 102, when the probe needs to be disassembled, the outer bolt 7 is first disassembled, and then the barrel 101 is screwed, so that the shell 1 can be quickly disassembled, which is convenient for disassembling and maintaining the probe and replacing the coil patch 10; at the same time, the mounting plate 2 abuts against the inner walls of the barrel 101 and the end cover 102, which improves the stability of the overall structure of the shell 1, and after the barrel 101 is disassembled, the laser 3, the air chamber assembly 4, the photoelectric sensor 5 and the circuit board assembly 20 are fixed on the mounting plate 2, which provides a larger operating space for the maintenance personnel.

[0051] Please refer to Figure 2 Both the barrel 101 and the end cover 102 are cylindrical structures, and the splicing portions of the barrel 101 and the end cover 102 are provided with thread protrusions matched with each other, and the splicing portions are provided with sealing rings.

[0052] Specifically, when the height of the end cover 102 is lower, the exposed length of the mounting plate 2 is greater after the barrel 101 is disassembled, and the operating space of the operator is greater, in addition, by providing the sealing rings, the sealing property of the shell 1 is improved, and the service life of the probe is prolonged.

[0053] In combination with the current actual demand, the above-mentioned embodiments adopted by the present application are not limited to this, and various changes made within the knowledge range of those skilled in the art without departing from the concept of the present application still fall within the protection range of the present application.

Claims

1. An atomic magnetometer probe with a magnetic field coil, characterized by, The utility model provides a kind of laser probe, including probe body;The probe body includes shell (1), fixedly connected with mounting plate (2) in shell (1), linearly arranged laser (3), air chamber assembly (4) and photoelectric sensor (5) are fixedly connected on mounting plate (2);The air chamber assembly (4) includes clamping frame (11), the upper portion of clamping frame (11) is clamped with the arc-shaped heat insulation sleeve (8), the heat insulation sleeve (8) is fixedly nested with atomic air chamber (9) in, the outer side of heat insulation sleeve (8) is abutted with coil patch (10), coil patch (10) is made by printing a layer of flexible coil on polyester film, and extrusion mechanism is arranged in clamping frame (11) for extruding and fixing coil patch (10) on the outer wall of heat insulation sleeve (8). The extrusion mechanism includes a pair of extrusion plates (12) abutting on the outer side of coil patch (10), the outer wall of extrusion plate (12) is connected with the inner wall of clamping frame (11) by spring telescopic rod (13) on the upper portion, the outer wall of extrusion plate (12) is fixedly connected with horizontal shift rod (14) on the middle portion, and the horizontal shift rod (14) is slidably connected with the lateral wall of clamping frame (11), the middle portion of horizontal shift rod (14) is provided with extrusion groove (1401), and the lower portion of extrusion groove (1401) is provided with extrusion rod (15) matched with it, when extrusion rod (15) is inserted into extrusion groove (1401) by moving upward, horizontal shift rod (14) is pushed to move outward horizontally, and the extrusion rod (15) extends to the lower portion of clamping frame (11) and is fixedly connected with toggle lever (16), and the toggle lever (16) is slidably connected with support leg (17) fixedly connected with clamping frame (11), and the support leg (17) is fixedly connected with mounting plate (2).

2. An atomic magnetometer probe with a magnetic field coil according to claim 1, characterized in that, The middle portion of the side wall of extrusion plate (12) towards coil patch (10) side is fixedly nested with contact piece (18), and the both sides of coil patch (10) are provided with contact point (1001) abutting with contact piece (18), and contact piece (18) is connected with circuit board assembly (20) by wire (19), and circuit board assembly (20) is fixedly connected with mounting plate (2).

3. An atomic magnetometer probe with a magnetic field coil according to claim 2, wherein, The shell (1) includes cylinder body (101) and end cover (102) threadedly connected with cylinder body (101), the left end of mounting plate (2) is threadedly connected with the inner wall of end cover (102) by inner bolt (6), and the right end of mounting plate (2) is fixedly connected with cylinder body (101) by outer bolt (7) penetrating through cylinder body (101).

4. An atomic magnetometer probe with a magnetic field coil according to claim 1, wherein, The heat insulation sleeve (8) is made of heat insulation rubber material, and the cavity (801) for accommodating atomic air chamber (9) is formed in the heat insulation sleeve (8), and a pair of light holes (802) are formed in the left and right sides of heat insulation sleeve (8) and communicated with cavity (801), and light holes (802) are oppositely arranged with laser (3).

5. An atomic magnetometer probe with a magnetic field coil according to claim 1, wherein, The clamping frame (11) is a hollow box structure with open upper end, the heat insulation sleeve (8) is interference-fitted in the inner cavity of clamping frame (11), and the nesting groove (803) for accommodating coil patch (10) is formed in the outer wall of heat insulation sleeve (8).

6. An atomic magnetometer probe with a magnetic field coil according to claim 1, wherein, The cross section of the extrusion groove (1401) is an isosceles trapezoid with narrow top and wide bottom, the cross section of the upper part of the extrusion rod (15) is a right triangle, the side wall of the clamping frame (11) is provided with horizontal cavities (1101) for horizontal movement of the horizontal moving rod (14), and the lower part of the clamping frame (11) is provided with vertical cavities (1102) for vertical sliding of the extrusion rod (15).

7. An atomic magnetometer probe with a magnetic field coil according to claim 1, wherein, The supporting leg (17) is provided with a vertical sliding groove (1701) for vertical sliding of the pushing rod (16), and the pushing rod (16) extends to the outside of the supporting leg (17) and is provided with a bent part (1601) with an L-shaped cross section.

8. An atomic magnetometer probe with a magnetic field coil according to claim 2, wherein, The contact piece (18) is an arc-shaped metal plate, the contact point (1001) is a metal contact point exposed on the surface of the coil patch (10), the extrusion plate (12) is provided with a containing cavity for containing the contact piece (18), and the two ends of the contact piece (18) are fixedly connected with the inner wall of the containing cavity through fixing bolts.

9. An atomic magnetometer probe with a magnetic field coil according to claim 3, wherein, The barrel (101) and the end cover (102) are both cylindrical structures, and the splicing parts of the barrel (101) and the end cover (102) are provided with thread protrusions matched with each other, and the splicing parts are provided with sealing rings.

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