CN115047386B - Lunar soil magnetic detection and transmission device for SERF atomic magnetometer - Google Patents
Lunar soil magnetic detection and transmission device for SERF atomic magnetometer Download PDFInfo
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- CN115047386B CN115047386B CN202210971082.9A CN202210971082A CN115047386B CN 115047386 B CN115047386 B CN 115047386B CN 202210971082 A CN202210971082 A CN 202210971082A CN 115047386 B CN115047386 B CN 115047386B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G51/00—Conveying articles through pipes or tubes by fluid flow or pressure; Conveying articles over a flat surface, e.g. the base of a trough, by jets located in the surface
- B65G51/04—Conveying the articles in carriers having a cross-section approximating that of the pipe or tube; Tube mail systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/032—Measuring direction or magnitude of magnetic fields or magnetic flux using magneto-optic devices, e.g. Faraday or Cotton-Mouton effect
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Abstract
The invention relates to a lunar soil magnetic detection and transmission device for an SERF atomic magnetometer, and belongs to the technical field of lunar sample magnetic test and magnetic measurement sample transmission. Lunar soil has very weak magnetism and is easily influenced by the magnetization property of a common magnetometer, so that the transmission of magnetic measurement of lunar soil samples is limited. The SERF atomic magnetometer has extremely high magnetic field measurement sensitivity, but because a magnetic shielding system can only shield magnetic noise outside the device and the internal space is narrow and tight, the detection transmission mode and the detection precision of the SERF atomic magnetometer on a sample are limited. According to the lunar soil magnetism detection and transmission device, the lunar soil magnetism detection and transmission device is arranged in the SERF atomic magnetometer, so that lunar soil samples can be close to the surface of a magnetometer measurement sensitive unit, the noise of an output signal of the SERF atomic magnetometer is reduced, the measurement range is enlarged, the detection precision and sensitivity of lunar soil magnetism measurement are improved through output response signal processing and analysis, and the lunar soil magnetism detection and transmission device has the advantages of being simple and convenient to install, low in modification cost, high in transmission efficiency, small in magnetic noise and interference and the like.
Description
Technical Field
The invention relates to the technical field of sample magnetic measurement and magnetic measurement sample transmission for optical magnetometers and magnetometers, in particular to a lunar soil magnetic detection transmission device for an SERF atomic magnetometer.
Background
A magnetometer is an instrument for measuring a magnetic field, and common magnetometers include magnetic measuring instruments such as a fluxgate magnetometer and an optical magnetometer. The common fluxgate magnetometer is a device for performing magnetic measurement by taking a high-permeability soft magnetic material as a working magnetic core and utilizing the magnetic saturation characteristic of the working magnetic core under the action of an alternating current magnetic field and a direct current magnetic field and the Faraday electromagnetic induction principle. The magnetometer has small volume and light weight, and the theoretical measurement precision can reach the level of 0.1 nT. However, the lunar soil is very weak in magnetism, the level of magnetism is far less than the magnitude of 0.1nT, and the magnetometer possibly actively magnetizes substances in the lunar soil to generate measurement deviation due to the fact that the working magnetic core of the magnetometer utilizes soft ferromagnetic materials which have magnetization characteristics when working, so that the magnetometer cannot meet the target of lunar soil magnetism detection. Lunar soil has very weak magnetism and is easily influenced by the magnetization property of a common magnetometer, and the transmission of magnetic measurement of lunar soil samples is limited.
An optical magnetometer is a magnetometer which performs magnetic measurement based on means such as optical and quantum precision measurement, which has emerged in recent years. A Spin-Exchange-Free (SERF) atomic magnetometer is an optical magnetometer that performs magnetic measurement of a measured substance using an atomic Spin effect. The theoretical precision and the measurement sensitivity of the SERF atomic magnetometer are far smaller than those of a common magnetometer, the theoretical precision can reach the aT magnitude, and the SERF atomic magnetometer is also the magnetometer with the highest sensitivity disclosed aT present. The measurement principle of the SERF atomic magnetometer determines that the SERF atomic magnetometer is a passive magnetic measurement device and does not magnetize magnetic substances in lunar soil. Although the measurement sensitivity of the atomic magnetometer is extremely high, the dependence on a zero magnetic field environment is large, so that the device must consider a magnetic shielding system generating a near-zero magnetic environment. Due to the space and mechanism limitations of the magnetic shielding system, the magnetic shielding system can only shield an interference magnetic field and magnetic noise outside the magnetic shielding system, so that the structure and the components in the conventional SERF atomic magnetometer magnetic shielding system are nonmagnetic and compact, and higher requirements are provided for the magnetic detection and transmission method of the lunar soil sample. Lunar soil magnetic detection and transmission devices used in SERF atomic magnetometers must meet the technical characteristics of compactness, no magnetism, magnetic noise and little interference.
Disclosure of Invention
Aiming at the defects of the prior art, the lunar soil magnetic detection and transmission device for the SERF atomic magnetometer has the advantages of simplicity and convenience in installation, low transformation cost, high transmission efficiency, easiness in maintenance and the like.
In order to realize the purpose, the invention is realized by the following technical scheme: a lunar soil magnetism detection and transmission device for an SERF atom magnetometer comprises a detection system arranged in the horizontal direction and an SERF state preparation system in a transmission device arranged in the vertical direction, wherein an oven air chamber in the transmission device is arranged at the intersection of the detection system and the SERF state preparation system in the transmission device, a vacuum ferrite system in the transmission device, a lunar soil transmission device guide rail and a transmission device magnetic shielding system are sequentially arranged outside the oven air chamber in the transmission device from inside to outside, a lunar soil transmission device storage device runs on the lunar soil transmission device guide rail, alkali metal atoms in the oven air chamber in the transmission device are heated to an SERF state through the SERF state preparation system in the transmission device, the vacuum ferrite system in the transmission device and the transmission device magnetic shielding system provide vacuum and non-magnetic environments for the device, the lunar soil transmission device storage device is used for loading lunar soil samples and moves on the lunar soil transmission device guide rail, the lunar soil transmission device guide rail provides a movement path of the lunar soil transmission device storage device and controls the movement speed of the lunar soil samples, and the detection system is used for measuring magnetism of the lunar soil samples.
Preferably, the SERF state preparation system in the conveying device comprises a pumping light source, a polarization adjusting device and an oven gas chamber in the conveying device, wherein the pumping light source is used for emitting SERF atomic pumping monochromatic coherent light, the polarization adjusting device is used for performing circular polarization transformation on the SERF atomic pumping monochromatic coherent light, and the oven gas chamber in the conveying device is used for heating alkali metal atoms to the SERF state preparation temperature.
Preferably, the vacuum ferrite system in the transmission device is used for vacuumizing the internal environment of the device and isolating external magnetic noise.
Preferably, the conveyor magnetic shield system is used to create a near zero magnetic field magnetic shield environment to create zero magnetic stripe pieces for the lunar soil conveyor rail, the conveyor in-vacuum ferrite system, the conveyor in-oven air chamber, and the lunar soil conveyor reservoir.
Preferably, the lunar soil conveyor track is provided with an inlet and an outlet to the conveyor magnetic shield system for ingress and egress of the lunar soil conveyor reservoir.
Preferably, the detection system comprises a detection light source, a polarization device, a modulation device, an analysis device, and a photodetector device, wherein the detection light source is used for providing stable detected monochromatic coherent light for the device, the polarization device is used for adjusting the single polarization direction of the detected monochromatic coherent light, the modulation device is used for modulating the detection laser, the analysis device is used for detecting and demodulating the detection light polarization information, and the photodetector device is used for detecting and demodulating the detection light and obtaining the detection magnetic field information.
Preferably, the lunar soil conveyor reservoir is used for storing lunar soil samples therein and performing relative motion in lunar soil conveyor rails.
Preferably, the vacuum ferrite system in the conveying device and the oven air chamber in the conveying device are coaxially fixed in the lunar soil conveying device guide rail.
The lunar soil magnetism detection and transmission device for the SERF atomic magnetometer is used for achieving lunar soil transmission during magnetic measurement of the SERF atomic magnetometer, achieving lunar soil non-magnetic transmission in the SERF atomic magnetometer device and further achieving magnetic measurement of lunar soil samples on the basis of the detection system, the transmission device shielding system, the lunar soil transmission device guide rail, the vacuum ferrite system in the transmission device, the lunar soil transmission device storage and the SERF state preparation system.
The lunar soil magnetism detection and transmission device is arranged in the SERF atomic magnetometer to enable lunar soil samples to be close to the surface of a magnetometer measurement sensitive unit, so that the noise of output signals of the SERF atomic magnetometer is reduced, the measurement range is enlarged, the detection precision and sensitivity of lunar soil magnetism measurement are improved through output response signal processing and analysis, and the lunar soil magnetism detection and transmission device has the advantages of simplicity and convenience in installation, low modification cost, high transmission efficiency, small noise and magnetic interference, easiness in maintenance and the like. The lunar soil magnetic detection and transmission device which is convenient to use and high in transmission efficiency plays an important role in measuring the lunar soil magnetic field of the ultra-high precision SERF atomic magnetometer. The device can be applied to the fields of high-precision and high-sensitivity magnetic field signal measurement sample transmission such as ultrahigh-precision extremely-weak magnetic measurement, magnetic measurement sample transmission and the like in the future, and is a practical and effective device.
Drawings
FIG. 1 is a schematic diagram of the apparatus of the present invention;
FIG. 2 is a schematic view of a lunar soil transfer device reservoir of the present invention;
FIG. 3 is a graph showing the results of the BH-1 simulation lunar soil magnetic detection in example 1 of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
The lunar soil magnetism detection and transmission device for the SERF atomic magnetometer comprises a detection system arranged along the horizontal direction and an SERF state preparation system arranged along the vertical direction, wherein an oven air chamber in the transmission device is arranged at the intersection of the detection system and the SERF state preparation system in the transmission device, a vacuum ferrite system in the transmission device, a lunar soil transmission device guide rail and a transmission device magnetic shielding system are sequentially arranged outside the oven air chamber in the transmission device from inside to outside, a lunar soil transmission device storage device runs on the lunar soil transmission device guide rail, alkali metal atoms in the oven air chamber in the transmission device are heated to an SERF state through the SERF state preparation system in the transmission device, and a vacuum and non-magnetic environment is provided for the device by the vacuum ferrite system in the transmission device and the transmission device magnetic shielding system, the lunar soil transfer device storage is used for loading lunar soil samples and moving on a lunar soil transfer device guide rail, the lunar soil transfer device guide rail provides a movement path of the lunar soil transfer device storage and controls the movement speed of the lunar soil transfer device storage, the detection system is used for measuring the magnetism of the lunar soil samples, the SERF state preparation system in the transfer device comprises a pumping light source, a polarization adjusting device and an oven air chamber in the transfer device, the pumping light source is used for emitting SERF atom pumping monochromatic coherent light, the polarization adjusting device is used for carrying out circular polarization transformation on the SERF atom pumping monochromatic coherent light, the oven air chamber in the transfer device is used for heating alkali metal atoms to the SERF state preparation temperature, a vacuum ferrite system in the transfer device is used for vacuumizing the internal environment of the device and isolating external magnetic noise, the transfer device magnetic shielding system is used for generating a magnetic shielding environment close to zero magnetic field, and is used for guiding rails, a magnetic shielding system and a magnetic shielding system are arranged on the lunar soil transfer device guide rail, the detection system comprises a detection light source, a polarizing device, a modulation device, a polarization detection device and a photoelectric detector device, wherein the detection light source is used for providing stable detected monochromatic coherent light for the device, the polarizing device is used for carrying out single polarization direction adjustment on the detected monochromatic coherent light, the modulation device is used for modulating detection laser, the polarizing device is used for detecting and detecting light polarization information, the photoelectric detector device is used for detecting and demodulating the detection light and obtaining detection magnetic field information, the lunar soil transmission device storage is used for storing lunar soil samples in the lunar soil transmission device storage and carrying out relative motion in the lunar soil transmission device guide rail, and the vacuum ferrite system in the transmission device and the oven air chamber in the transmission device are coaxially fixed in the lunar soil transmission device guide rail.
Example 1
The embodiment illustrates that the lunar soil magnetism detection and transmission device for the SERF atomic magnetometer is configured to the simulated lunar soil of BH-1 model, and the magnetism condition of the simulated lunar soil of the model is detected.
As shown in fig. 1, a lunar soil magnetism detection and transmission device for a SERF atomic magnetometer comprises a detection laser 1, a polarizer 2, a modulator 3, a transmission device magnetic shielding system 4, a lunar soil transmission device guide rail 5, a pumping laser 6, a polarization regulator 7, a transmission device vacuum ferrite system 8, a transmission device inner oven air chamber 9, an analyzer 10, a photoelectric detector 11 and a lunar soil transmission device storage 12.
The lunar soil conveyor guide rail 5 is coaxially fixed in the conveyor magnetic shielding system 4, the lunar soil conveyor guide rail 5 is used for controlling and restraining the conveying path and the conveying speed of the lunar soil conveyor storage 12, and the conveyor magnetic shielding system 4 provides a magnetic shielding environment close to zero magnetic field for the lunar soil conveyor guide rail 5, the vacuum ferrite system 8 in the conveyor, the oven air chamber 9 in the conveyor and the lunar soil conveyor storage 12. The lunar soil transfer device reservoir 12 is used to store lunar soil samples within it. The vacuum ferrite system 8 in the conveying device and the oven air chamber 9 in the conveying device are coaxially fixed in the lunar soil conveying device guide rail 5, the vacuum ferrite system 8 in the conveying device is used for vacuumizing the internal environment of the conveying device and further isolating external magnetic noise, and the oven air chamber 9 in the conveying device is used for heating alkali metal atoms to the SERF state preparation temperature.
The detection laser 1 provides detection laser for an SERF atomic magnetometer, the detection laser is horizontally incident into a polarizer 2 and is adjusted to be in a single polarization direction, then the detection laser horizontally enters a modulator 3 for modulation, the modulated detection laser horizontally enters an oven air chamber 9 in a conveying device through a vacuum ferrite system 8 in the device and is acted with SERF state atoms to carry magnetic field detection information, detection light carrying the magnetic field detection information horizontally enters an analyzer 10, the analyzer 10 is used for detecting the detection light polarization information, the detection light vertically enters a photoelectric detector 11, and the photoelectric detector 11 is used for detecting and demodulating the detection light and obtaining the detection magnetic field information.
The lunar soil transfer device guide rail 5 can be used under a magnetic shielding panoramic mirror, the radius of the inside of the guide rail is 10mm, the wall thickness of a pipe is 0.1mm, the maximum load is 1kg, the material is a non-magnetic material, a pneumatic or hydrodynamic transfer mode can be adopted, and the position of a lunar soil transfer device storage device 12 can be accurately controlled and adjusted. As shown in fig. 2, the lunar soil conveyor reservoir 12 can enter the lunar soil conveyor rail 5 with an outer radius of 10mm, a length of 30mm, a wall thickness of 0.1mm, a maximum load of 5g, and a material of nonmagnetic material, and can realize storage of lunar soil in the device.
The lunar soil magnetic detection and transmission device for the SERF atomic magnetometer comprises the following specific operation process in specific implementation:
step (1): opening the lunar soil transfer device storage device 12, loading 5g of BH-1 simulation lunar soil medicine spoon into the lunar soil transfer device storage device 12, and sealing;
step (2): the pumping laser 6 is opened to output 770.148nm laser, the output laser is incident to the polarization regulator 7, and the output laser is regulated into circularly polarized laser by the polarization regulator and is output to an oven air chamber 9 in the conveying device;
and (3): opening an oven air chamber 9 in the conveying device, and heating the air chamber to about 220 ℃ by using the oven air chamber 9 in the conveying device;
and (4): the detection laser 1 is opened to output 770.104nm laser and input into the polarizer 2, the polarizer 2 changes the polarization state of the input laser into a linear polarization state to be output, the linear polarization state laser is input into the modulator 3 to be modulated and input into the oven air chamber 9 in the transmission device to be coupled with the state of atoms in the air chamber, the laser with atom state information is input into the analyzer 10 and finally output to the photoelectric detector 11 to be demodulated;
and (5): placing a lunar soil conveyor storage 12 filled with 5g of BH-1 simulated lunar soil at an inlet of a lunar soil conveyor guide rail 5, opening a pneumatic device to enable the pressure in the lunar soil conveyor guide rail 5 to be smaller than the external pressure, and enabling the lunar soil conveyor storage 12 to slide at a constant speed on the lunar soil conveyor guide rail 5 under the pushing of air flow, wherein the speed is controlled at 1cm/s by the air flow speed during specific implementation;
and (6): the method comprises the steps of collecting measured data of the BH-1 simulated lunar soil in a lunar soil magnetism detection and transmission device for a SERF atomic magnetometer, and obtaining BH-1 simulated lunar soil magnetism detection results after data processing, wherein a circular chain line is magnetic field strength measurement data of the BH-1 simulated lunar soil in the device, wherein the magnetic field strength measurement data change along with time.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A lunar soil magnetic detection transmission device for a SERF atomic magnetometer is characterized in that: the device comprises a detection system arranged in the horizontal direction and a SERF state preparation system in a transmission device arranged in the vertical direction, wherein an oven air chamber in the transmission device is arranged at the intersection of the detection system and the SERF state preparation system in the transmission device, a vacuum ferrite system, a lunar soil transmission device guide rail and a transmission device magnetic shielding system in the transmission device are sequentially arranged outside the oven air chamber in the transmission device from inside to outside, a lunar soil transmission device storage device runs on the lunar soil transmission device guide rail, alkali metal atoms in the oven air chamber in the transmission device are heated to the SERF state through the SERF state preparation system in the transmission device, the vacuum ferrite system and the transmission device magnetic shielding system in the transmission device provide vacuum and non-magnetic environments for the device, the lunar soil transmission device storage device is in a capsule shape and is used for loading lunar soil samples and moving on the lunar soil transmission device guide rail, the lunar soil transmission device guide rail provides a movement path of the lunar soil transmission device storage device and controls the movement speed of the lunar soil transmission device storage device, and the detection system is used for measuring magnetism of the lunar soil samples;
the SERF state preparation system in the conveying device comprises a pumping light source, a polarization adjusting device and an oven gas chamber in the conveying device, wherein the pumping light source is used for emitting SERF atomic pumping monochromatic coherent light, the polarization adjusting device is used for carrying out circular polarization transformation on the SERF atomic pumping monochromatic coherent light, and the oven gas chamber in the conveying device is used for heating alkali metal atoms to the SERF state preparation temperature;
the detection system comprises a detection light source, a polarization device, a modulation device, a polarization detection device and a photoelectric detector device, wherein the detection light source is used for providing stable detection monochromatic coherent light for the device, the polarization device is used for adjusting the single polarization direction of the detection monochromatic coherent light, the modulation device is used for modulating and detecting laser, the polarization detection device is used for detecting and detecting light polarization information, and the photoelectric detector device is used for detecting and demodulating detection light and obtaining detection magnetic field information.
2. The lunar soil magnetic survey transmission device for a SERF atomic magnetometer of claim 1, wherein: the vacuum ferrite system in the transmission device is used for vacuumizing the internal environment of the device and isolating external magnetic noise.
3. The lunar soil magnetic exploration transmission device for a SERF atomic magnetometer of claim 1, wherein: the transmission device magnetic shielding system is used for generating a magnetic shielding environment close to a zero magnetic field and creating a zero magnetic strip piece for the lunar soil transmission device guide rail, the vacuum ferrite system in the transmission device, the oven air chamber in the transmission device and the lunar soil transmission device storage.
4. The lunar soil magnetic exploration transmission device for a SERF atomic magnetometer of claim 1, wherein: the lunar soil conveyor track is provided with an inlet and an outlet to the conveyor magnetic shield system for ingress and egress of the lunar soil conveyor reservoir.
5. The lunar soil magnetic exploration transmission device for a SERF atomic magnetometer of claim 1, wherein: the lunar soil conveyor storage is used for storing lunar soil samples in the lunar soil conveyor storage and performing relative motion in a lunar soil conveyor guide rail.
6. The lunar soil magnetic exploration transmission device for a SERF atomic magnetometer of claim 1, wherein: the vacuum ferrite system in the conveying device and the oven air chamber in the conveying device are coaxially fixed in the lunar soil conveying device guide rail.
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