CN113253361B - Lunar soil water ice extreme low temperature physical property testing device - Google Patents
Lunar soil water ice extreme low temperature physical property testing device Download PDFInfo
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- CN113253361B CN113253361B CN202110410705.0A CN202110410705A CN113253361B CN 113253361 B CN113253361 B CN 113253361B CN 202110410705 A CN202110410705 A CN 202110410705A CN 113253361 B CN113253361 B CN 113253361B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 238000012360 testing method Methods 0.000 title claims abstract description 18
- 239000002689 soil Substances 0.000 title claims abstract description 17
- 230000000704 physical effect Effects 0.000 title claims abstract description 16
- 238000002474 experimental method Methods 0.000 claims abstract description 49
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V13/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices covered by groups G01V1/00 – G01V11/00
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- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention provides a lunar soil water ice extremely low-temperature physical property testing device which comprises a refrigerating system, a vacuum system and a vacuum low-temperature experiment cabin, wherein the vacuum low-temperature experiment cabin is positioned in the vacuum system, and the refrigerating system is connected with the vacuum low-temperature experiment cabin; the cold guide sample stage of the vacuum low-temperature experiment cabin is placed in an experiment cabin body, the cold guide sample stage is connected with a multi-stage cold head, a sealed sample box and a temperature control heating plate are placed on the cold guide sample stage, a tested sensor is arranged on the temperature control heating plate, the sealed sample box is divided into a plurality of independent units, and a water ice sample and the tested sensor are placed in each independent unit; solves the technical problem that the prior art does not have an experimental device capable of realizing the extremely low temperature vacuum environment of the moon. The invention can simulate the harsh lunar environment, is a first test for detecting the water ice in China, fills the blank of detecting the water ice in China, and has great significance for catching up with the international space exploration level in China.
Description
Technical Field
The invention relates to a lunar soil water ice extremely low-temperature physical property testing device, and belongs to the technical field of lunar soil testing devices.
Background
The exploration of lunar water ice is inevitably faced with extreme environments such as vacuum, extremely low temperature and the like, and in order to ensure the performance of the sensor used for exploration, the performance of the sensor in the extreme environments must be subjected to overground verification by a performance verification device, so that the performance of the sensor under different conditions is verified. However, since the extreme environment required is too severe, there is no experimental apparatus capable of realizing such an extremely low temperature vacuum environment.
Disclosure of Invention
The invention provides a lunar soil water ice extreme low temperature physical property testing device, which aims to solve the technical problem that an experimental device capable of realizing a lunar extreme low temperature vacuum environment is not available in the prior art.
The invention provides a lunar soil water ice extremely low-temperature physical property testing device which comprises a refrigerating system, a vacuum system and a vacuum low-temperature experiment cabin, wherein the vacuum low-temperature experiment cabin is positioned in the vacuum system, and the refrigerating system is connected with the vacuum low-temperature experiment cabin to refrigerate the vacuum low-temperature experiment cabin;
the refrigerating system mainly comprises a low-temperature refrigerator and a multi-stage cold head, wherein the low-temperature refrigerator is connected with the vacuum low-temperature experiment cabin through the multi-stage cold head;
The vacuum low-temperature experiment cabin comprises an experiment cabin body, a cold guide sample table, a sealed sample box and a temperature control heating plate, wherein the cold guide sample table is placed in the experiment cabin body, the cold guide sample table is connected with a multi-stage cold head, the sealed sample box and the temperature control heating plate are placed on the cold guide sample table, a measured sensor is arranged on the temperature control heating plate, the sealed sample box is divided into a plurality of independent units, and a water ice sample and the measured sensor are placed in each independent unit;
The vacuum system comprises a vacuum cover and a cold screen, wherein the cold screen is arranged in the vacuum cover, an experiment cabin body is arranged in the cold screen, and a sensor measurement interface is arranged on the vacuum cover.
Preferably, a base is connected below the vacuum cover through a vacuum cover flange.
Preferably, the outer surfaces of the cold screen and the vacuum low-temperature experiment cabin are subjected to gold plating treatment, and the inner surfaces are coated with heat sink black paint.
Preferably, the multistage cold head is cooled step by step, and finally extremely low temperature is transferred into the vacuum low-temperature experiment cabin.
Preferably, a cold conducting copper block is arranged below the cold conducting sample stage, and the cold conducting copper block is connected with the multi-stage cold head.
The lunar soil water ice extremely low-temperature physical property testing device has the beneficial effects that:
1. The sealed sample box comprises five layers of independent units, and is favorable for position decoupling and distribution decoupling.
2. The invention can simulate the harsh lunar environment, is a first test for detecting the water ice in China, fills the blank of detecting the water ice in China, and has great significance for catching up with the international space exploration level in China.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.
In the drawings:
FIG. 1 is a schematic diagram of the internal structure of a lunar soil water ice extremely low temperature physical property testing device according to the invention;
FIG. 2 is a schematic diagram of the external structure of a lunar soil water ice extremely low temperature physical property testing device according to the invention;
Wherein, 1-a cold screen; 2-an experiment cabin body; 3-sealing the sample cartridge; 4-sensor measurement interface; 5-a base; 6-a cryorefrigerator; 7-multistage cold head; 8-a vacuum hood flange; 9-cooling copper blocks; 10-a temperature control heating plate; 11-a sensor to be measured; 12-vacuum hood.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings:
The first embodiment is as follows: this embodiment will be described with reference to fig. 1 to 2. The lunar soil water ice extreme low-temperature physical property testing device comprises a refrigerating system, a vacuum system and a vacuum low-temperature experiment cabin, wherein the vacuum low-temperature experiment cabin is positioned in the vacuum system, the refrigerating system is connected with the vacuum low-temperature experiment cabin for refrigerating the vacuum low-temperature experiment cabin, and the thermal control system is positioned outside the vacuum low-temperature experiment cabin;
the refrigerating system mainly comprises a low-temperature refrigerator 6 and a multi-stage cold head 7, wherein the low-temperature refrigerator 6 is connected with a vacuum low-temperature experiment cabin through the multi-stage cold head 7;
The vacuum low-temperature experiment cabin comprises an experiment cabin body, a cold guide sample table, a sealed sample box 3 and a temperature control heating plate 10, wherein the cold guide sample table is arranged in the experiment cabin body, the cold guide sample table is connected with a multi-stage cold head 7, the sealed sample box 3 and the temperature control heating plate 10 are arranged on the cold guide sample table, a measured sensor 11 is arranged on the temperature control heating plate 10, the sealed sample box 3 is divided into a plurality of independent units, and a water ice sample and the measured sensor 11 are arranged in each independent unit;
The vacuum system comprises a vacuum cover 12 and a cold screen 1, wherein the cold screen 1 is arranged in the vacuum cover 12, an experiment cabin body is arranged in the cold screen 1, and a sensor measurement interface is arranged on the vacuum cover 12.
The base 5 is connected below the vacuum cover 12 through the vacuum cover flange 8.
The sensor 11 to be tested can be replaced by different sensors according to different experiments.
The multistage cold head 7 is cooled step by step, and finally extremely low temperature is transferred into the vacuum low temperature experiment cabin.
The cold conduction copper block 4 is arranged below the cold conduction sample stage, and the cold conduction copper block 4 is connected with the multi-stage cold head 7.
The outer surfaces of the cold screen 1 and the vacuum low-temperature experiment cabin are subjected to gold plating treatment to reduce heat leakage, and the inner surfaces of the cold screen 1 are coated with heat sink black paint, so that the vacuum is kept, and the low temperature is kept.
Wherein, the upper vacuum cover 2 is internally provided with a cold screen 1, and the inner side of the cold screen 1 is provided with an experiment cabin 10. The mechanism of the inner layer and the outer layer is adopted to simulate the extremely low-temperature environment as much as possible, wherein the thermodynamic temperature in the cold screen 1 can reach 40K, and the thermodynamic temperature in the hot vacuum chamber can reach 50K. The junction of vacuum cover 2 is provided with the sealing ring, and vacuum cover 2 and sealing ring's effect is in order to keep the condition of vacuum, and vacuum cover 2 links to each other with the molecular pump, can be with the air in the vacuum cover 2 of extraction at the beginning of the experiment, and the inside vacuum degree that can reach of vacuum cover 2 when the guarantee experiment.
The sample and the measured sensor device needed by the experiment are placed on the cold conduction sample stage, the cold conduction sample stage is characterized by being connected with the cold conduction copper block 9, the cold conduction copper block 9 is connected with the multi-stage cold head 7, the cold conduction sample stage is closely attached to each device for ensuring the working efficiency, and meanwhile, the instrument is connected with the experimental device through the sensor measurer interface 4, so that the temperature of each cabin can be monitored in real time.
In order to verify the performance of the sensor 11 to be tested, two experiments are required to be completed, namely, directly verifying the tolerance experiment of the sensor in a vacuum, low-temperature and anhydrous environment and verifying the tolerance experiment of the instrument in lunar soil with different water contents.
In order to verify the performance of the tested sensor 11 under different conditions, a sample library is required to be established, average lunar soil water ice samples with different water contents and compactness are configured, low-temperature freezing treatment is carried out, then comprehensive physical property testing is carried out by using calibrated sensing devices, the water content, the freezing temperature and the compactness are continuously changed, and the mapping relation between the temperature, the water content, the compactness and the comprehensive physical property can be obtained.
The sealed sample box 3 is divided into five independent units, and each layer is provided with a water ice sample with known comprehensive properties and calibrated sensing devices so as to perform position decoupling and distribution decoupling. And in the experiment, the tested sensor 11 is kept in full contact with a sample of water ice, and after the experiment is finished, the performance of the sensor device in an extreme environment can be judged to be in accordance with the index by comparing and analyzing the measured data with the known physical parameters of the sample.
The above specific embodiments are used for further detailed description of the objects, technical solutions and advantageous effects of the present invention. It should be understood that the foregoing description is only a specific example of the present invention, and is not intended to limit the invention, but rather is a reasonable combination of features described in the foregoing embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. The lunar soil water ice extreme low-temperature physical property testing device is characterized by comprising a refrigerating system, a vacuum system and a vacuum low-temperature experiment cabin, wherein the vacuum low-temperature experiment cabin is positioned in the vacuum system, the refrigerating system is connected with the vacuum low-temperature experiment cabin for refrigerating the vacuum low-temperature experiment cabin,
The refrigerating system mainly comprises a low-temperature refrigerator (6) and a multi-stage cold head (7), wherein the low-temperature refrigerator (6) is connected with the vacuum low-temperature experiment cabin through the multi-stage cold head (7);
The vacuum low-temperature experiment cabin comprises an experiment cabin body, a cold-conducting sample platform, a sealed sample box (3) and a temperature-control heating sheet (10), wherein the cold-conducting sample platform is placed in the experiment cabin body and is connected with a multi-stage cold head (7), the sealed sample box (3) and the temperature-control heating sheet (10) are placed on the cold-conducting sample platform, a measured sensor (11) is arranged on the temperature-control heating sheet (10), the sealed sample box (3) is divided into a plurality of independent units, and a water ice sample and the measured sensor (11) are placed in each independent unit;
The vacuum system comprises a vacuum cover (12) and a cold screen (1), wherein the cold screen (1) is arranged in the vacuum cover (12), an experiment cabin body is arranged in the cold screen (1), and a sensor measurement interface is arranged on the vacuum cover (12);
and the outer surfaces of the cold screen (1) and the vacuum low-temperature experimental cabin are subjected to gold plating treatment, and the inner surfaces are coated with heat sink black paint.
2. The lunar soil water ice extremely low temperature physical property testing device according to claim 1, wherein a base (5) is connected below the vacuum cover (12) through a vacuum cover flange (8).
3. The lunar soil water ice extremely low temperature physical property testing device according to claim 1, wherein the multistage cold head (7) is cooled step by step, and finally extremely low temperature is transferred into the vacuum low temperature experiment cabin.
4. The lunar soil water ice extremely low-temperature physical property testing device according to claim 1, wherein a cold conducting copper block (4) is arranged below the cold conducting sample stage, and the cold conducting copper block (4) is connected with a multi-stage cold head (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110410705.0A CN113253361B (en) | 2021-04-14 | 2021-04-14 | Lunar soil water ice extreme low temperature physical property testing device |
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| CN202110410705.0A CN113253361B (en) | 2021-04-14 | 2021-04-14 | Lunar soil water ice extreme low temperature physical property testing device |
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| CN113253361B true CN113253361B (en) | 2024-04-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113624063A (en) * | 2021-08-17 | 2021-11-09 | 中国科学院合肥物质科学研究院 | Manufacturing method of low-temperature helium tank with large heat exchange amount and low flow resistance |
| CN113920804A (en) * | 2021-09-26 | 2022-01-11 | 哈尔滨工业大学 | Large-scale multi-factor space irradiation environment integrated simulation device and simulation method |
| CN115876971B (en) * | 2022-12-30 | 2024-07-12 | 中国科学院地质与地球物理研究所 | Method for online correction of water ice sample analyzer in vacuum low-temperature environment |
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