Atomic magnetometer probe with internal heat insulation function

By using the gas chamber electric coil and heat insulation in the atomic magnetometer probe for heating and insulation, and calibrating and protecting the laser path through targeted tubes, the problems of opacity and aging deformation of traditional thermal insulation materials are solved, improving detection accuracy and laser penetration effect.

CN119861318AInactive Publication Date: 2025-04-22HEFEI INK TEST TECH CO LTD
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Patent Information

Application Number
CN202510080916.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2025-04-22
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Traditional thermal insulation materials are not transparent enough, preventing the laser from passing through the atomic gas chamber and aging and deforming in high-temperature environments, preventing the laser from passing through.

Method used

Atomic magnetometer probe with internal insulation function was designed to heat the atomic gas chamber through the gas chamber electric heating coil and insulated with the gas chamber heat shield to ensure that the laser can pass through accurately. The targeting tube is used for calibration and protection of the laser path to prevent deformation of the heat shield from blocking the laser.

Benefits of technology

It effectively reduces the impact of atomic gas chamber heating on the laser emitter, improves detection accuracy, and ensures that the laser can accurately pass through the atomic gas chamber through the design of the targeting tube, avoiding deformation barriers of the heat shield.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to an atomic magnetometer probe with an internal heat insulation function, which comprises a probe shell, a laser emitter, a photoelectric sensor, a laser emitter, an atomic gas chamber, an assembly frame, a heating shell, a gas chamber electric heating ring, a gas chamber heat insulation cover, a target pipe, an assembling groove, a probe sealing cover and an assembling wedge bolt, according to the atomic magnetometer probe, the atomic gas chamber is heated through the gas chamber electric heating ring, then the gas chamber heat insulation cover is used for heat insulation wrapping, the influence of heating of the atomic gas chamber on the laser emitter is effectively reduced, and therefore the detection accuracy of the atomic magnetometer probe is effectively improved; the target pipe is utilized to calibrate and protect the laser path, laser emitted by the laser emitter can accurately penetrate through the atomic gas chamber through the target pipe, the photoelectric sensor can be accurately irradiated by the laser, and meanwhile, the phenomenon that the laser penetrates through the atomic gas chamber is blocked by deformation of the gas chamber heat shield is effectively avoided.
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Description

Technical Field

[0001] The invention relates to an atomic magnetometer probe, in particular to an atomic magnetometer probe with an internal heat insulation function applied in the technical field of atomic magnetometers. Background Art

[0002] Atomic magnetometers are precision instruments that use the quantum properties of atoms to measure the strength of magnetic fields. They are usually based on the phenomenon of atomic magnetic resonance, which means that when an atom is exposed to an external magnetic field, its internal electronic and nuclear magnetic moments interact with the external magnetic field, resulting in energy level splitting and resonant absorption. Atomic magnetometers can measure magnetic fields very accurately because they use the intrinsic properties of atoms, which are constant in nature. Optically pumped magnetometers This type of magnetometer uses lasers to excite atoms, causing their electrons to jump to higher energy levels. By measuring the absorption of light by atoms, the strength of the magnetic field can be inferred.

[0003] The specification of Chinese invention patent CN202322911993.5 discloses "A thermal insulation structure of an atomic magnetometer and an atomic magnetometer". The thermal insulation structure of the atomic magnetometer places the atomic gas chamber in the innermost cavity. The use of a multi-layer cavity can improve the thermal insulation effect of the atomic gas chamber, and the gas insulation layer can reduce the heat transfer efficiency and enhance the thermal insulation effect of the atomic gas chamber, which is beneficial to improve the sensitivity of magnetic field measurement, and can effectively reduce the external temperature of the atomic magnetometer, and improve the problem of excessive temperature of the outer surface of the atomic magnetometer causing discomfort to the human body.

[0004] To increase the sensitivity of magnetic field measurement, the magnetometer needs to heat the atomic gas chamber to increase the atomic density. Similarly, in order for the laser emitter to emit a laser that meets the detection wavelength, the laser emitter also needs to be properly heated to maintain the laser emitter at a suitable operating temperature. However, the high temperature generated by the heating of the atomic gas chamber will affect the temperature of the laser emitter and the wavelength of the laser. Therefore, thermal insulation is required between the atomic gas chamber and the laser emitter. However, traditional thermal insulation materials are not transparent enough, which prevents the laser from passing through the atomic gas chamber. In order for the laser to better irradiate into the atomic gas chamber, holes for the laser to pass through need to be provided on the thermal insulation material. However, the thermal insulation material will age and deform if it is exposed to high temperature for a long time, and the deformation of the original holes will hinder the passage of the laser. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that traditional thermal insulation materials are not transparent enough, which hinders the laser from passing through the atomic gas chamber. In order for the laser to better irradiate into the atomic gas chamber, it is necessary to provide holes for the laser to pass through on the thermal insulation material. However, the thermal insulation material will age and deform if it is exposed to a high temperature environment for a long time, and the deformation of the original holes will hinder the passage of the laser.

[0006] In order to solve the above problems, the present invention provides an atomic magnetometer probe with internal heat insulation function, comprising a probe housing, two ends of the probe housing are respectively fixedly connected with a laser emitter and a photoelectric sensor, and an atomic gas chamber is placed between the laser emitter and the photoelectric sensor;

[0007] The middle part of the probe housing is fixedly connected with an assembly frame, the atomic gas chamber is fixedly placed in the middle part of the assembly frame, both ends of the atomic gas chamber are fixedly sleeved with heating shells, a gas chamber electric heating ring is fixedly connected between the two heating shells, the gas chamber electric heating ring is sleeved with the atomic gas chamber, and the outer part of the gas chamber electric heating ring is sleeved with a gas chamber heat insulation cover;

[0008] A targeting tube is fixedly connected to the middle of the heating shell, the two targeting tubes are collinearly corresponding to the axis of the atomic gas chamber, and the two targeting tubes correspond linearly to the laser emitter and the photoelectric sensor respectively, both ends of the assembly frame are provided with assembly grooves, the targeting tubes are snap-connected with the assembly grooves, the top of the probe shell is fixedly connected to the probe cover, the lower surface of the probe cover is fixedly connected to the assembly wedge bolt, the assembly wedge bolt is vertically plugged into the assembly groove, and the bottom end of the assembly wedge bolt presses and contacts the targeting tube.

[0009] In the above-mentioned atomic magnetometer probe with internal heat insulation function, the atomic gas chamber is heated by the gas chamber electric heating ring, and then the gas chamber heat insulation cover is used to insulate and wrap it, which effectively reduces the impact of the heating of the atomic gas chamber on the laser emitter, and the laser path is calibrated and protected by the targeting tube, which effectively prevents the deformation of the gas chamber heat insulation cover from blocking the laser from passing through the atomic gas chamber.

[0010] As a further improvement of the present application, the outer sleeve of the laser emitter is provided with a laser electric heating ring, and the outer sleeve of the laser electric heating ring is provided with a laser heat insulation cover. The laser emitter is heated by the laser electric heating ring to facilitate the laser emitter to emit laser of a specified wavelength, thereby effectively improving the detection accuracy.

[0011] As a further improvement of the present application, the edges of the laser heat insulation cover and the air chamber heat insulation cover corresponding to the assembly frame are provided with embedding grooves, and the laser heat insulation cover and the air chamber heat insulation cover are both made of insulating aerogel material. The laser heat insulation cover and the air chamber heat insulation cover are wrapped around the assembly frame through the embedding grooves, thereby effectively improving the filling effect of the laser heat insulation cover and the air chamber heat insulation cover on the inside of the probe shell, and the elasticity of the insulating aerogel material itself is used to achieve the seismic buffering effect of the laser emitter, photoelectric sensor and atomic gas chamber.

[0012] As a further improvement of the present application, the bottom end of the assembly wedge bolt and the bottom of the assembly groove are both arc-shaped, and the bottom end of the assembly wedge bolt and the bottom of the assembly groove are padded with rubber buffer pads. The targeting tube is made of low thermal conductivity ceramic material. The installation stability of the targeting tube is effectively improved by the arc-shaped setting of the bottom end of the assembly wedge bolt and the bottom of the assembly groove, and the padded rubber buffer pads.

[0013] As another improvement of the present application, a heat absorbing sheet is fixedly embedded in the interior of the targeting tube, a heat conducting column is fixedly connected to the top of the heat absorbing sheet, the heat conducting column passes through the assembly wedge bolt, and the top of the heat conducting column extends out of the upper surface of the probe cover, and the heat absorbing sheet and the heat conducting column form a path for the targeting tube to dissipate heat outward, thereby preventing the heat of the atomic gas chamber from affecting the laser emitter through the air in the targeting tube.

[0014] As another improved supplement to the present application, heat absorbing needles are equidistantly fixedly connected to the left and right edges of the bottom of the heat absorbing sheet. The heat absorbing sheet and the heat-conducting column are both made of brass material. The heat absorbing needles are used to increase the contact area between the heat absorbing sheet and the air inside the targeting tube, thereby effectively improving the heat extraction effect of the air inside the targeting tube.

[0015] As another improved supplement of the present application, a heat dissipation groove is opened on the upper surface of the probe cover, and two thermal conductive columns correspond to the two ends of the heat dissipation groove respectively, and the top of the thermal conductive column is flush with the upper opening of the heat dissipation groove. The heat dissipation groove is used as the space for the top of the thermal conductive column to contact the outside air, which effectively improves the heat dissipation effect from the top of the thermal conductive column and provides protection for the top of the thermal conductive column.

[0016] As another improvement of the present application, a resistance ring is fixedly connected between the heating shell and the atomic gas chamber, and the resistance ring is sleeved with the targeting tube. A telescopic hole is opened at the connection part of the heating shell and the targeting tube, and a heat connector is inserted inside the telescopic hole. The protruding end of the heat connector corresponds to the root of the heat-conducting column, and a memory alloy mesh is fixedly connected between the other end of the heat connector and the resistance ring. The deformation temperature of the memory alloy mesh corresponds to the limit temperature of the atomic gas chamber. By utilizing the thermal deformation ability of the memory alloy mesh, when the temperature of the atomic gas chamber reaches the limit temperature, the memory alloy mesh is deformed to push the heat connector to extend out of the telescopic hole, and the heat connector is in contact with the root of the heat-conducting column to form a heat conduction path, thereby achieving heat dissipation and cooling of the atomic gas chamber, thereby avoiding overheating of the atomic gas chamber and affecting the detection accuracy of the probe, and providing overheating protection for the probe itself.

[0017] As another improved supplement of the present application, the connecting portion between the heat-conducting column and the targeting tube is fixedly connected with a heat-conducting root ring, and the thermal connector is in contact with the heat-conducting root ring. The heat-conducting root ring is in contact with multiple heat connectors at the same time, thereby effectively improving the heat conduction effect between the heat connector and the heat-conducting column.

[0018] In summary, the present invention heats the atomic gas chamber by an air chamber electric heating ring, and then uses an air chamber heat insulation cover to insulate and wrap it, effectively reducing the influence of the heating of the atomic gas chamber on the laser emitter, thereby effectively improving the detection accuracy of the atomic magnetometer probe, and vertically plugging the assembly wedge bolt and the assembly groove to compress and fix the targeting tube, so as to realize the calibration and protection of the laser path by using the targeting tube, so that the laser emitted by the laser emitter can accurately pass through the atomic gas chamber through the targeting tube, thereby realizing the accurate irradiation of the laser on the photoelectric sensor, and effectively avoiding the deformation of the air chamber heat insulation cover to block the laser from passing through the atomic gas chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional structural diagram of the first embodiment of the present application;

[0020] Figure 2 This is a three-dimensional structural diagram of the probe housing of the first embodiment of the present application;

[0021] Figure 3 This is a three-dimensional structural diagram of the air chamber heat shield and the laser heat shield of the first embodiment of the present application;

[0022] Figure 4 This is a top view of the three-dimensional structure of the probe housing of the first embodiment of the present application;

[0023] Figure 5 This is a top-down perspective structural diagram of an assembly rack according to a first embodiment of the present application;

[0024] Figure 6 This is a three-dimensional structural diagram of the assembly groove and the assembly wedge bolt of the first embodiment of the present application;

[0025] Figure 7 This is a bottom-up stereoscopic structural diagram of the probe cover in the first embodiment of the present application;

[0026] Figure 8 This is a cross-sectional three-dimensional structural diagram of the atomic gas chamber and the targeting tube in the second embodiment of the present application;

[0027] Fig. 9 This is a top-view stereoscopic structural diagram of a probe cover according to a second embodiment of the present application;

[0028] Fig.10 This is a side view of a targeting tube according to a second embodiment of the present application;

[0029] Fig.11 This is an enlarged view of the third embodiment of the present application, the abutment ring and the heat contact;

[0030] Fig.12 A side view of a third embodiment of the present application, showing a contact ring and a heat-connecting piece;

[0031] Fig.13This is a demonstration diagram of the change in the telescopic state of the memory alloy mesh in the third embodiment of the present application.

[0032] Description of the numbers in the figure:

[0033] 1. Probe housing; 101. Laser emitter; 102. Photoelectric sensor; 103. Atomic gas chamber; 2. Assembly frame; 201. Heating shell; 202. Gas chamber electric heating ring; 203. Gas chamber heat shield; 204. Targeting tube; 205. Assembly groove; 206. Probe cover; 207. Assembly wedge bolt; 208. Laser electric heating ring; 209. Laser heat shield; 210. Embedded groove; 211. Rubber cushion; 3. Heat absorbing plate; 301. Heat conducting column; 302. Heat absorbing needle; 303. Heat dissipation groove; 4. Resistance ring; 401. Telescopic hole; 402. Heat connection plate; 403. Memory alloy mesh; 404. Heat conducting root ring. DETAILED DESCRIPTION

[0034] Three implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0035] The first implementation method:

[0036] Figures 1 to 4 FIG. 1 shows an atomic magnetometer probe with an internal heat insulation function, comprising a probe housing 1, wherein two ends of the probe housing 1 are respectively fixedly connected with a laser emitter 101 and a photoelectric sensor 102, an atomic gas chamber 103 is placed between the laser emitter 101 and the photoelectric sensor 102, an assembly frame 2 is fixedly connected to the middle of the probe housing 1, the atomic gas chamber 103 is fixedly placed in the middle of the assembly frame 2, both ends of the atomic gas chamber 103 are sleeved with heating shells 201, an air chamber electric heating ring 202 is fixedly connected between the two heating shells 201, the air chamber electric heating ring 202 is sleeved with the atomic gas chamber 103, and the air chamber electric heating ring 202 is sleeved with an air chamber heat insulation cover 203, the laser emitter 101 is sleeved with a laser electric heating ring 208, and the laser electric heating ring 208 is sleeved with a laser heat insulation cover 20 9. The laser emitter 101 is heated by the laser electric heating ring 208 to achieve the specified working temperature of the laser emitter 101, so that the laser emitter 101 can emit a laser of a specified wavelength, thereby effectively improving the detection accuracy. The edges of the laser heat insulation cover 209 and the air chamber heat insulation cover 203 corresponding to the assembly frame 2 are provided with an embedding groove 210, and the laser heat insulation cover 209 and the air chamber heat insulation cover 203 are both made of heat-insulating aerogel material. The laser heat insulation cover 209 and the air chamber heat insulation cover 203 are wrapped around the assembly frame 2 through the embedding groove 210, thereby effectively improving the filling effect of the laser heat insulation cover 209 and the air chamber heat insulation cover 203 on the inside of the probe housing 1, and the elasticity of the heat-insulating aerogel material itself is used to achieve the anti-seismic buffering effect of the laser emitter 101, the photoelectric sensor 102 and the atomic gas chamber 103;

[0037] When the probe is working, the air chamber electric heating ring 202 heats the atomic gas chamber 103, so that the metal in the atomic gas chamber 103 is vaporized to increase the atomic number density in the atomic gas chamber 103, and the heated atomic gas chamber 103 is wrapped and insulated by the air chamber heat insulation cover 203, so as to effectively prevent the heat emitted by the air chamber electric heating ring 202 from affecting the working temperature of the laser emitter 101 and the wavelength of the laser emitted by the laser emitter 101, thereby effectively improving the detection accuracy of the probe.

[0038] Figures 4 to 7 As shown, a targeting tube 204 is fixedly connected to the middle of the heating shell 201, and the two targeting tubes 204 correspond to the axis of the atomic gas chamber 103 in a colinear manner, and the two targeting tubes 204 correspond to the laser emitter 101 and the photoelectric sensor 102 in a straight line, respectively. Both ends of the assembly frame 2 are provided with assembly grooves 205, and the targeting tubes 204 are clamped with the assembly grooves 205. The top of the probe housing 1 is fixedly connected to a probe cover 206, and the lower surface of the probe cover 206 is fixedly connected to an assembly wedge bolt 207, and the assembly wedge bolt 207 is connected to the assembly groove 205. The connecting groove 205 is vertically plugged, and the bottom end of the connecting wedge bolt 207 presses against the targeting tube 204. The bottom end of the connecting wedge bolt 207 and the bottom of the connecting groove 205 are both arc-shaped, and the bottom end of the connecting wedge bolt 207 and the bottom of the connecting groove 205 are padded with a rubber buffer pad 211. The targeting tube 204 is made of a low thermal conductivity ceramic material. The arc-shaped bottom end of the connecting wedge bolt 207 and the bottom of the connecting groove 205, as well as the padded rubber buffer pad 211, effectively improve the installation stability of the targeting tube 204.

[0039] When the atomic gas chamber 103 is installed and fixed, the heating shell 201 and the gas chamber electric heating ring 202 are installed on the outer fixed sleeve of the atomic gas chamber 103, and the targeting tube 204 in the middle of the heating shell 201 is aligned with the axial line of the atomic gas chamber 103. At the same time, the targeting tube 204 opens the gas chamber heat insulation cover 203, and the targeting tube 204 is used to calibrate and protect the laser path, so that the laser emitted by the laser transmitter 101 can accurately pass through the atomic gas chamber 103 through the targeting tube 204, and effectively avoid the deformation of the gas chamber heat insulation cover 203 blocking the laser from passing through the atomic gas chamber 103. Then, the assembled atomic gas chamber 103 is placed in the assembly frame 2, and the targeting tube 204 is placed in the assembly groove 205, and then the assembly wedge bolt 207 is used to vertically insert it into the assembly groove 205, and the bottom end of the assembly wedge bolt 207 presses and fixes the targeting tube 204, thereby effectively improving the installation stability of the targeting tube 204.

[0040] The second implementation method:

[0041] Compared with the first embodiment, a heat absorbing sheet 3 is mainly added. The specific newly added structure is as follows, and the remaining structures are consistent with the first embodiment.

[0042] Figure 2 and Figures 8 to 10 As shown, the interior of the target tube 204 is fixedly inlaid with a heat absorbing sheet 3, the top of the heat absorbing sheet 3 is fixedly connected with a heat conducting column 301, the heat conducting column 301 penetrates the assembly wedge bolt 207, and the top of the heat conducting column 301 extends out of the upper surface of the probe cover 206, the heat absorbing sheet 3 and the heat conducting column 301 form a heat dissipation path for the target tube 204 to dissipate heat outward, thereby preventing the heat of the atomic gas chamber 103 from passing through the air in the target tube 204 to affect the laser emitter 101, the bottom left and right edges of the heat absorbing sheet 3 are equidistantly fixedly connected with heat absorbing needles 302, and the heat absorbing sheet 3 and the heat conducting column 301 are both made of brass material The heat absorbing needle 302 is used to increase the contact surface between the heat absorbing sheet 3 and the air inside the target tube 204, thereby effectively improving the heat extraction effect of the air inside the target tube 204. A heat dissipation groove 303 is opened on the upper surface of the probe cover 206. Two heat-conducting columns 301 correspond to the two ends of the heat-conducting groove 303 respectively, and the top of the heat-conducting column 301 is flush with the upper opening of the heat-conducting groove 303. The heat dissipation groove 303 is used as the space for the top of the heat-conducting column 301 to contact the outside air, which effectively improves the heat dissipation effect from the top of the heat-conducting column 301 and provides protection for the top of the heat-conducting column 301.

[0043] When the probe is working, the heat of the atomic gas chamber 103 is transmitted toward the laser emitter 101 through the air in the targeting tube 204, and the heat absorption sheet 3 embedded in the targeting tube 204 is used to transfer heat with the internal air. The heat absorption needle 302 increases the contact surface between the heat absorption sheet 3 and the air inside the targeting tube 204, effectively improving the heat transfer effect between the heat absorption sheet 3 and the hot air inside the targeting tube 204. The heat is transferred to the probe cover 206 through the heat-conducting column 301, and the heat is dissipated to the outside air through the top of the heat-conducting column 301. By extracting the heat inside the targeting tube 204, the heat is effectively prevented from propagating toward the laser emitter 101, further reducing the influence of the heat of the atomic gas chamber 103 on the laser emitter 101. The magnetometer is mainly used for drone detection. The probe of the magnetometer is affected by the flight airflow of the drone, which is more convenient for the heat dissipation at the top of the heat-conducting column 301.

[0044] The third implementation method:

[0045] Compared with the second embodiment, a resistance circle 4 is mainly added, and the specific newly added structure is as follows, and the rest of the structure is consistent with the second embodiment.

[0046] Figures 10 to 13As shown, a resistance ring 4 is fixedly connected between the heating shell 201 and the atomic gas chamber 103, and the resistance ring 4 is sleeved with the targeting tube 204. A telescopic hole 401 is provided at the connection between the heating shell 201 and the targeting tube 204. A heat connection piece 402 is inserted into the telescopic hole 401. The extended end of the heat connection piece 402 corresponds to the root of the heat-conducting column 301. A memory alloy mesh 403 is fixedly connected between the other end of the heat connection piece 402 and the resistance ring 4. The deformation temperature of the memory alloy mesh 403 corresponds to the limit temperature of the atomic gas chamber 103. The thermal deformation ability of the memory alloy mesh 403 is utilized to achieve the temperature of the atomic gas chamber 103 reaching the limit temperature. The time memory alloy mesh 403 deforms to push the heat connector 402 out of the telescopic hole 401, and the heat connector 402 contacts the root of the heat-conducting column 301 to form a heat conduction path, thereby achieving heat dissipation and cooling of the atomic gas chamber 103, thereby preventing the atomic gas chamber 103 from overheating and affecting the detection accuracy of the probe, and providing overheating protection for the probe itself. The connection between the heat-conducting column 301 and the targeting tube 204 is fixedly connected with a heat-conducting root ring 404, and the heat connector 402 contacts the heat-conducting root ring 404, and contacts multiple heat connectors 402 at the same time through the heat-conducting root ring 404, thereby effectively improving the heat conduction effect between the heat connector 402 and the heat-conducting column 301;

[0047] When the temperature of the atomic gas chamber 103 inside the probe is increased, since the outside of the atomic gas chamber 103 is wrapped and insulated by the gas chamber heat insulation cover 203, the heat of the atomic gas chamber 103 will accumulate and be difficult to dissipate, and the atomic gas chamber 103 will overheat. At this time, the thermal deformation ability of the memory alloy mesh 403 is utilized. When the temperature of the atomic gas chamber 103 reaches the limit temperature, the memory alloy mesh 403 deforms to push the heat connector 402 to extend out of the telescopic hole 401, and allows the heat connector 402 to contact the root of the heat conductive column 301, so that a heat conductive path is formed between the heat conductive column 301 and the abutment ring 4, and the heat conductive column 301 directly dissipates the heat to the atomic gas chamber 103, so that the atomic gas chamber 103 is restored to a suitable working temperature, effectively avoiding the detection accuracy of the probe being affected by the overheating of the atomic gas chamber 103, and effectively providing protection for other components in the probe.

[0048] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. An atomic magnetometer probe with internal heat insulation function, characterized in that: The probe housing (1) comprises a laser emitter (101) and a photoelectric sensor (102) respectively fixedly connected at two ends of the probe housing (1), and an atomic gas chamber (103) is placed between the laser emitter (101) and the photoelectric sensor (102); The middle of the probe housing (1) is fixedly connected to an assembly frame (2), the atomic gas chamber (103) is fixedly placed in the middle of the assembly frame (2), both ends of the atomic gas chamber (103) are fixedly sleeved with heating shells (201), an air chamber electric heating ring (202) is fixedly connected between the two heating shells (201), the air chamber electric heating ring (202) is sleeved with the atomic gas chamber (103), and the outside of the air chamber electric heating ring (202) is sleeved with an air chamber heat insulation cover (203); A targeting tube (204) is fixedly connected to the middle of the heating shell (201), the two targeting tubes (204) are collinearly corresponding to the axis of the atomic gas chamber (103), and the two targeting tubes (204) are linearly corresponding to the laser emitter (101) and the photoelectric sensor (102), respectively; both ends of the assembly frame (2) are provided with assembly grooves (205), the targeting tubes (204) are snap-fitted with the assembly grooves (205), the top of the probe housing (1) is fixedly connected to a probe cover (206), the lower surface of the probe cover (206) is fixedly connected to an assembly wedge bolt (207), the assembly wedge bolt (207) is vertically plugged into the assembly groove (205), and the bottom end of the assembly wedge bolt (207) presses against the targeting tube (204).

2. The atomic magnetometer probe with internal heat insulation function according to claim 1, characterized in that: The laser emitter (101) is externally sheathed with a laser electric heating ring (208), and the laser electric heating ring (208) is externally sheathed with a laser heat insulation cover (209).

3. The atomic magnetometer probe with internal heat insulation function according to claim 2, characterized in that: The edges of the laser heat insulation cover (209) and the air chamber heat insulation cover (203) corresponding to the assembly frame (2) are both provided with embedding grooves (210), and the laser heat insulation cover (209) and the air chamber heat insulation cover (203) are both made of heat insulation aerogel material.

4. The atomic magnetometer probe with internal heat insulation function according to claim 1, characterized in that: The bottom end of the assembly wedge bolt (207) and the bottom of the assembly groove (205) are both arranged in an arc shape, and the bottom end of the assembly wedge bolt (207) and the bottom of the assembly groove (205) are both padded with a rubber buffer pad (211), and the targeting tube (204) is made of a low thermal conductivity ceramic material.

5. The atomic magnetometer probe with internal heat insulation function according to claim 1, characterized in that: A heat absorbing sheet (3) is fixedly embedded inside the targeting tube (204), a heat conducting column (301) is fixedly connected to the top of the heat absorbing sheet (3), the heat conducting column (301) passes through the assembly wedge bolt (207), and the top end of the heat conducting column (301) extends out of the upper surface of the probe cover (206).

6. The atomic magnetometer probe with internal heat insulation function according to claim 5, characterized in that: Heat absorbing needles (302) are fixedly connected to the left and right edges of the bottom of the heat absorbing sheet (3) at equal distances, and the heat absorbing sheet (3) and the heat conducting column (301) are both made of brass material.

7. The atomic magnetometer probe with internal heat insulation function according to claim 5, characterized in that: A heat dissipation groove (303) is provided on the upper surface of the probe cover (206), and the two heat-conducting columns (301) correspond to the two ends of the heat dissipation groove (303), respectively, and the top of the heat-conducting column (301) is flush with the upper opening of the heat dissipation groove (303).

8. The atomic magnetometer probe with internal heat insulation function according to claim 5, characterized in that: A resistance ring (4) is fixedly connected between the heating shell (201) and the atomic gas chamber (103), and the resistance ring (4) is sleeved with the targeting tube (204). A telescopic hole (401) is provided at the connection portion between the heating shell (201) and the targeting tube (204), and a heat connection piece (402) is inserted into the inside of the telescopic hole (401). The protruding end of the heat connection piece (402) corresponds to the root of the heat-conducting column (301), and a memory alloy net (403) is fixedly connected between the other end of the heat connection piece (402) and the resistance ring (4), and the deformation temperature of the memory alloy net (403) corresponds to the limit temperature of the atomic gas chamber (103).

9. The atomic magnetometer probe with internal heat insulation function according to claim 8, characterized in that: The connection portion between the heat-conducting column (301) and the targeting tube (204) is fixedly connected with a heat-conducting root ring (404), and the thermal connection piece (402) is in contact with the heat-conducting root ring (404).

Citation Information

Patent Citations

  • Thermal insulation structure of atom magnetometer and atom magnetometer

    CN221613010U