399 results about "Lunar soil" patented technology

The invention provides a long-distance moving path planning method and device for a lunar rover, and the method comprises the steps: carrying out the classification of topographic features based on the whole-moon typical landform features through the wide-angle camera image of a lunar investigation orbiter; dividing the to-be-planned moving path into a plurality of local passable areas based on the classified passable areas; for each local passable area, generating a digital elevation model and a digital orthoimage by using a narrow-angle camera image of a moon investigation orbiter; performing global path planning to generate a global reference path; constructing a local digital elevation model and a local digital orthoimage by using a three-dimensional lunar surface image sensed by the lunar rover in real time; and according to the local digital elevation model, the local digital orthoimage, the measured data of the lunar rover and the prior lunar soil mechanical parameters, verifying the global reference path based on the kinetic model, and outputting a global planning strategy. The method can be used for long-distance moving path planning of the lunar rover, and is high in accuracy.

The invention relates to the field of material testing, and particularly discloses a shear box for simulating lunar soil ring shear testing and a testing device.The shear box comprises a lower box body, an upper box body, an axial loading assembly, a vacuum air channel and a shear seam adjusting mechanism; the testing device comprises a ring shear apparatus and a shear box, the ring shear apparatus comprises a torsional shear measurement and control module, an axial loading measurement and control module and a sensing module, and the sensing module comprises a temperature sensing assembly, an acoustic emission sensor and the like. According to the invention, multi-field coupled lunar soil environment simulation including vacuum, temperature, mechanical loading and the like can be provided, and multi-field collaborative analysis and cross-scale research of lunar soil mechanical behaviors are realized.

The invention belongs to the field of material mechanical property analysis, and particularly discloses a three-dimensional random field construction method and system for simulating the mechanical property of a lunar soil brick, and the method comprises the following steps: S1, obtaining hardness and elastic modulus corresponding to each sampling point on the simulated lunar soil brick; s2, determining an edge distribution function F1 of the hardness based on the hardness distribution of all the sampling points, and determining an edge distribution function F2 of the elastic modulus based on the elastic modulus distribution of all the sampling points; s3, based on a Copula function, combining the edge distribution functions F1 and F2 into a joint distribution function; and S4, determining a cross correlation coefficient between the hardness and the elastic modulus based on the joint distribution function, forming a cross correlation coefficient covariance matrix R, and further determining the lunar soil brick mechanical property random field. According to the method, the random field for simulating the mechanical property of the lunar soil brick is accurately modeled, and a scientific basis can be provided for design and selection of lunar building materials.

The invention discloses a lunar resource in-situ exploration-while-drilling device and method. The lunar resource in-situ exploration-while-drilling device is composed of a spiral drilling tool, an illumination light source module, a polarization spectrum detection module and a dual-channel spectrum measurement module. The drilling tool drill rod is of a hollow structure. Light emitted by the illumination light source module is collimated and depolarized to form unpolarized parallel light to irradiate lunar soil on the side wall of the drill hole, and the polarization spectrum measurement probe collects reflected light of the lunar soil; the reflected light is collimated by a front collimator objective of the probe and then sequentially passes through a spectrum modulation unit consisting of an achromatic 1 / 4 wave plate, a multi-stage wave plate, a beam splitter prism and two polaroids of which the light transmission directions are vertical to each other, and two orthogonal light beams are formed, so that polarization information of the reflected light is modulated in a spectrum dimension; demodulating the modulated spectrum to obtain the spectrum and polarization information of the lunar soil reflected light; and the resource distribution and content and the physical characteristics of the original lunar soil are inversed by using the polarization spectrum characteristics of the lunar soil. According to the invention, in-situ exploration of lunar subsurface depth profile mineral resources can be realized.

The invention belongs to the field of computer vision, image processing and space engineering, and discloses a lunar soil test piece in-situ three-dimensional reconstruction method based on an improved neural radiation field algorithm, and the method comprises the steps: obtaining a multi-view image set of a lunar soil test piece, and carrying out the self-adaptive adjustment of lunar surface illumination; the pose of the high-resolution camera is calculated through multi-view stereoscopic vision, and a depth map is obtained; the method comprises the following steps: generating a neural coding volume based on a Vision Transform model, and extracting a multi-dimensional feature vector; generating a neural radiation field, and predicting rendering features of the volume points; carrying out micro-volume rendering, and carrying out loss feedback optimization by using color rendering, depth and illumination; performing grid extraction by using a moving cube algorithm to obtain a three-dimensional grid model; for feature extraction difficulty and reconstruction mismatching difficulty caused by lunar soil background texture similarity, the problem of low reconstruction precision under a lunar surface non-uniform illumination condition is effectively solved, and high-quality and high-precision in-situ rapid three-dimensional reconstruction of a lunar soil test piece is realized.

The invention discloses a lunar radar horizon tracking method based on a dynamic search center, and solves the problems that an existing method is high in dependence on artificial experience and low in processing efficiency, and the false horizon misjudgment rate is high due to lunar soil non-uniformity interference. Comprising the following steps: performing Hilbert transform on a radar signal to extract an envelope; based on historical horizon data, predicting a dynamic search center of a current channel through Gaussian weighted average and determining a search window; screening local maximum value points in the window as candidate points, and calculating signal intensity, smoothness and edge direction scores of the candidate points; selecting an optimal candidate point as a horizon position through multi-feature linear fusion; and according to the lunar soil interface form and the signal-to-noise ratio dynamic adjustment parameters, tracking and outputting a final horizon path one by one. According to the method, historical path constraints and local signal features are fused, the identification precision and robustness of the lunar soil layered interface in the complex electromagnetic environment are remarkably improved, and the method is suitable for radar data processing of lunar exploration tasks such as Chang'e 4 and the like.

The invention relates to a high-simulation environment lunar surface sample collection and in-situ packaging test system and method, and the system comprises a vacuum device, a thermal environment simulation device, a lunar surface sample collection device, a sample packaging device, a lunar soil simulation device, a low-gravity simulation device, a supporting tool, a temperature measurement and control unit, and a monitoring illumination unit. The thermal environment simulation device is installed in the vacuum device, the lunar surface sample collection device, the sample packaging device and the low-gravity simulation device are arranged on the supporting tool, the lunar soil simulation device is fixedly installed on the six-degree-of-freedom platform, and all the devices are connected with an external controller through cabin penetrating cables. The vacuum device, the thermal environment simulation device and the low-gravity simulation device achieve establishment of a high vacuum-wide temperature range-low gravity coupled high-simulation real lunar surface environment, the lunar surface sample collection device is used for reliably collecting simulated lunar soil samples, and then the sample packaging device is used for packaging the simulated lunar soil samples into the sample container in situ. And the collection and in-situ packaging process of the shallow lunar soil sample in the lunar surface environment can be truly simulated.

The invention belongs to the technical field of solar photo-thermal power generation, and discloses a tower type solar power generation system based on lunar soil particle moving bed heat exchange, which utilizes local materials of lunar soil to prepare solid heat storage particles as a heat transfer and heat storage medium, greatly reduces the mass and volume of the system and the cost and risk of transporting materials from the earth, and improves the energy efficiency. The efficient particle moving bed heat exchanger combining the particle receiver and the heat collector utilizes direct efficient contact heat exchange between solid particles and between the particles and a heat exchange working medium, has the characteristics of high heat exchange efficiency, small heat loss and compact structure, and is particularly suitable for space vacuum and microgravity environments; it is ensured that heat is reliably and stably transmitted to the Brayton cycle power generation system from concentrated solar energy, and power is generated through the Brayton cycle power generation system.

The disclosure provides a test device and a test method for isotope measurement of noble gases in lunar soil. The testing device includes a carbon dioxide laser ultra-high vacuum sample melting system, zirconium-aluminum getters, a vacuum dry pump, a first molecular pump, a second molecular pump, a neon gas capture unit, an argon gas capture unit, an argon krypton-xenon capture unit, a dilution tank, a sputtering ion pump and a noble gas mass spectrometer which are connected through pipelines, and each pipeline and each component are connected through a specific way; in addition, control valves for controlling the opening and closing of the pipelines are installed on the connection path between each pipeline and each component, and the disclosure also provides a matching test method.

A method for extracting oxygen and metal from lunar-based mineral resources comprises the following steps: in a vacuum / inert gas atmosphere, lunar soil which is not subjected to mineral separation treatment is directly contained in a conductive current collector device and serves as a working cathode, and an inert oxygen evolution anode and electrolyte are matched to form a molten salt electrolytic bath; after the electrolysis reactor is heated to a preset operation temperature, electrifying electrolysis is carried out under the driving force of an external power supply, and oxygen is separated out by an anode and collected by a gas collecting device; after a preset electrolysis mechanism and electrolysis time, the cathode current collector is recycled from the electrolytic bath, and a metal product is obtained; and a new cathode current collector is replaced to realize continuous process operation. A traditional process for extracting oxygen and metal from lunar soil usually only focuses on preparation of metal or oxygen, and the oxygen and the metal cannot be prepared at the same time. According to the method, the lunar soil composite oxide raw material is subjected to solid-phase electrochemical reduction, the aim of synchronously producing oxygen and metal is achieved, and a new short-process metallurgical process route for preparing metal and oxygen through direct electrolysis of lunar soil without mineral separation treatment is achieved.

The invention relates to a preparation method of simulated lunar soil suitable for resource utilization, which comprises the following steps: S1, crushing a basalt sample and carrying out primary magnetic separation to obtain a primary magnetic separation sample; s2, the primary magnetic separation sample is ground, the ground primary magnetic separation sample is subjected to a heating hydrogen reduction reaction, and a hydrogen reduction product is obtained; s3, carrying out secondary magnetic separation on the hydrogen reduction product, and drying the iron-removed sample to obtain a secondary magnetic separation sample for later use; s4, the ilmenite powder and reducing gas are mixed to react, an ilmenite mixture containing elemental iron is obtained, and then the ilmenite mixture is sintered and smashed to obtain ilmenite particles; s5, mixing the secondary magnetic separation sample obtained in the step S4 and the ilmenite particles obtained in the step S5 according to a preset mass ratio, performing tabletting treatment, and sintering in an inert atmosphere to obtain a mixed sintering sample; and S6, crushing the mixed sintering sample to obtain the simulated lunar soil particles. The simulated lunar soil conforms to the actual symbiotic combination rule of lunar soil minerals.

The invention discloses a test platform and a test method for simulating lunar soil penetration in a low-gravity environment based on bottom friction, and belongs to the technical field of low-gravity simulation devices. Simulated lunar soil is placed in the simulation box; the simulation box is arranged on the support adjusting unit; wherein the inclination angle of the simulation box is adjusted by adjusting the length of the support adjusting unit, so that the gravity of the moon is simulated; the monitoring unit penetrates through the simulation box and then penetrates into the simulated lunar soil, and the penetration resistance in the simulated lunar soil is monitored. The low-gravity environment of the moon can be simulated, and the low-gravity environments of other planets can also be simulated by applying the method principle provided by the invention; meanwhile, the method provided by the invention can be used for calculating the inclination angle alpha of the corresponding test bed according to different lunar soil or star soil materials (the friction coefficients mu of different materials are different).

The invention provides a real-simulation research device for an ice-soil substance formation evolution mechanism in a lunar permanent shadow region, and belongs to the technical field of high-real-simulation simulation of lunar soil water-ice substances in the lunar permanent shadow region. The problems that an existing simulant preparation method and technological conditions of ice-soil substances in a lunar permanent shadow area are low in conformity with a scientific mechanism of a lunar soil water ice real formation and evolution mechanism; and the physical indexes such as the thermal-electrical-optical-desorption characteristics of the lunar soil water-ice simulant are greatly different from the theoretical predicted value of the real lunar soil water-ice. The system comprises a lunar PSR comprehensive environment simulation cabin, a lunar PSR water molecule injection field simulator, an array type ice-soil substance preparation sample table and a state parameter monitoring regulation and control system. The device is mainly used for real-time simulation research of an ice-soil substance formation evolution mechanism in the permanent moon shadow region.

The invention discloses a transmission electron microscope sample preparation method for a lunar soil space weathered surface and application, and the method comprises the following steps: pasting target lunar soil particles on a carbon conductive adhesive tape, and enabling the target flat surfaces of the target lunar soil particles to be placed back to the carbon conductive adhesive tape; plating a layer of carbon film on the surface of the target lunar soil particle to obtain a scanning electron microscope sample of the target lunar soil particle; screening out a plurality of target research areas on the carbon film corresponding to the target flat surface; uniformly plating a layer of gold film on the carbon film corresponding to the target lunar soil particle scanning electron microscope sample; deposition operation of a research area protection layer is carried out on the gold film corresponding to the target research area through an electron beam and an ion beam in sequence; and performing slicing operation perpendicular to the target flat surface on the target lunar soil particle scanning electron microscope sample to obtain the target lunar soil particle transmission electron microscope sample. According to the method, lunar soil space weathering characteristics can be truly reserved, and an accurate and reliable sample is provided for lunar soil space weathering research.

The invention discloses simulated lunar soil for engineering and a preparation process thereof, the simulated lunar soil has a multilayer structure design, and comprises a basic mineral structure layer, a surface activity control layer and a simulated space environment effect layer. The basic mineral structure layer is prepared from modified olivine, titanium-rich basalt, rare earth doped plagioclase, calcium phosphate minerals, nano iron particles and vitreous minerals according to a specific proportion; the surface activity control layer adopts an atomic layer deposition technology to form a nano oxide layer on the surface of the mineral particles; the simulated space environment effect layer is formed through low-pressure helium ion bombardment and ultraviolet irradiation. The preparation process comprises the steps of intelligent graded crushing, mineral phase change control, surface modification and activation treatment, multi-parameter synchronous regulation and control and the like. The simulated lunar soil can be produced in a customized mode according to different lunar area characteristics, the matching degree with real lunar soil physical characteristics exceeds 90%, the ground testing precision of lunar exploration equipment is remarkably improved, and technical support is provided for lunar on-site resource utilization and lunar base construction.

The invention provides large-scale continuous mining and collecting equipment and method for moon water and ice resources. The equipment comprises a mobile platform, and a multifunctional integrated shoveling and digging module, a microwave energy-gathered heating module, a water collecting and storing module and a mechanical arm which are mounted on the mobile platform, the mechanical arm is used for driving the multifunctional integrated shoveling and digging module to be reversely buckled on the surface layer of the ice-containing lunar soil to construct a heating cavity or shovel and dig the lunar soil; the microwave energy-gathered heating module is used for heating the ice-containing lunar soil in the heating cavity in a microwave energy-gathered heating mode so as to perform heat extraction of water and ice resources on the ice-containing lunar soil, and the water collection and storage module is used for collecting and storing water obtained through heat extraction. Water and ice resources in lunar soil from the surface layer to the deep layer can be continuously mined through circulating operation, and large-scale continuous operation is achieved.

The invention relates to the technical field of space exploration and lunar soil experiments, in particular to a melting centrifugal type mineral particle morphology remodeling device and a lunar soil glass ball preparation method. The device comprises a mineral protolith high-temperature melting system, a mineral melting slurry conveying system, a centrifugal mineral particle size control system and a mineral particle cooling and morphology remodeling system. The preparation method of the lunar soil glass ball comprises the following steps: adding basalt mineral powder and mineral melting additive powder into a melting centrifugal mineral particle morphology remodeling device to obtain simulated lunar soil glass balls with different particle sizes, and performing morphology transformation on the simulated lunar soil glass balls with different particle sizes by using an ion beam gun. And the lunar soil glass ball state of the impact melting history is reduced. According to the method, high-precision engineering mass production of components, morphology and mechanical properties of the lunar soil glass balls is realized through a fusion centrifugal forming and ion beam surface control composite process, and the problem of soil mechanical behavior deviation caused by morphology distortion of existing simulated lunar soil is solved.

The invention provides a lunar-sea-imitated basalt glass fiber and a preparation method thereof. The preparation raw materials of the lunar-sea-imitated basalt glass fiber are determined according to lunar soil component data. The preparation raw materials comprise the following components in percentage by mass: 42% to 50% of SiO2, 12% to 18% of Al2O3, 7% to 12% of MgO, 10% to 14% of CaO, 8% to 20% of FeO, 0.05% to 0.4% of MnO, 1% to 8% of TiO2, 0.05% to 0.5% of P2O5 and 0.05% to 0.4% of Cr2O3. According to the method, component data of lunar soil in different areas of the moon are collected, chemical raw materials are used for carrying out physical simulation on lunar soil components in different areas, and each selected raw material component is regulated and controlled based on the lunar soil component data in different areas and the performance of basalt glass fibers; on one hand, the manufacturability of the basalt glass fiber is improved, the basalt glass formed by the component content has good uniformity during melting, stable wire drawing production can be achieved, on the other hand, the elasticity modulus of the basalt glass fiber is improved, and the tensile strength of the basalt glass fiber is improved. And the basalt glass fiber can be prepared only by using the lunar soil component under the low-gravity condition.

The invention provides an in-situ test device and method for a shear strength index of simulated lunar soil, and relates to lunar soil detection equipment. A cross beam; a static sounding probe rod; the compacting cylinder group comprises a plurality of layered compacting cylinders which are detachably connected in sequence in the vertical direction, and the layered compacting cylinders are used for containing simulated lunar soil with different compacts; and the driving assembly drives the cross beam to vertically move and drives the static sounding probe rod to move, so that the static sounding probe rod is inserted into one of the layered compaction cylinders. The device has the beneficial effects that the simulated lunar soil with different compactness is contained in the plurality of layered compacting cylinders to simulate real in-situ undisturbed lunar soil, static sounding tests are performed on the simulated lunar soil with different compactness, and a physical model between the shear strength index and resistance of the simulated lunar soil is established to measure the shear strength index of the simulated lunar soil, so that the comprehensive performance of the simulated lunar soil is improved. In the moon exploration process, the test process is reduced, the test efficiency is improved, and the test cost is reduced.

The present invention belongs to the field of space technology, and particularly relates to a lunar soil concrete preparation vehicle based on material extrusion molding technology and its uses. The lunar soil concrete preparation vehicle includes: a lunar soil collection system, a lunar soil transmission system, and a concrete preparation and packaging system; the lunar soil collection system is used to grab and collect lunar soil in place, and the lunar soil transmission system transmits the lunar soil collected by the lunar soil collection system to the concrete preparation and packaging system; the concrete preparation and packaging system includes: a central collection plate (18), an outer pressure-bearing box (19) installed on the central collection plate (18), a lateral push rod (17) arranged directly in front of the outer pressure-bearing box (19), a longitudinal push rod (5) arranged on the side of the outer pressure-bearing box (19), a lunar soil pressure box (4) that can move axially in the axial direction of the outer pressure-bearing box (19), and the lunar soil pressure box (4) is connected to a transmission mechanism to control its reciprocating axial movement. The preparation process of the lunar soil concrete preparation vehicle of the present invention is not affected by external conditions, and the preparation of lunar soil "concrete" can be completely completed only by mechanical extrusion. The device of the present invention has no precision instruments, has strong anti-loss performance, is durable, and is simple to repair. In addition, the device is simple to operate, has a small vehicle weight, and is easy to transfer and transport.

The invention discloses a ground measuring device and method for simulating the diffusion coefficient of lunar soil injected volatile components, and belongs to the field of lunar volatile component research equipment. The device comprises a sample bin connected with an ion implantation mechanism and a pressure sensor connected with the sample bin, the ion implantation mechanism can perform volatile ion implantation on a sample in the sample bin, the sample bin can be heated, and the pressure sensor can detect the internal pressure of the sample bin. The method comprises the following steps: performing high-precision volatile component injection on a simulated lunar soil or lunar soil mineral sample, performing step-by-step heating on the sample subjected to volatile component injection so as to heat and release the volatile components, monitoring the internal air pressure change of a system, and determining the diffusion coefficients of the volatile components in the sample at different temperatures by utilizing the air pressure change. According to the technical scheme, ion implantation and heating release are utilized, and a repeatable experiment for simulating the lunar soil volatile component diffusion behavior on the ground is achieved.

The invention discloses a simulated lunar soil low-temperature measurement method and device based on a fluorescent probe, and the method comprises the following steps: S1, the fluorescent probe and simulated lunar soil are mixed, the temperature measurement interval of the fluorescent probe is 80-200K, and the fluorescence intensity in the temperature measurement interval is basically in a linear relation with the temperature; s2, irradiating the simulated lunar soil mixed sample containing the fluorescent probe by using an ultraviolet excitation light source, and collecting the intensity of a fluorescent signal by using an optical high-resolution spectrometer; s3, calculating the temperature of the simulated lunar soil mixed sample according to the intensity of the fluorescence signal and the linear relation between the fluorescence intensity and the temperature. The special low-temperature fluorescent probe is adopted, the lower limit of temperature measurement reaches 80K, and the measurement accuracy under the low-temperature condition can be improved by uniformly mixing the special low-temperature fluorescent probe with lunar soil / simulated lunar soil.

The invention belongs to the related technical field of lunar soil mechanical research, and discloses a synchronous CT triaxial test method for a lunar soil sample, which comprises the following steps: S1, preparing the lunar soil sample in a triaxial tester, and installing the triaxial tester after the lunar soil sample is prepared on a rotating table of a CT scanning system; s2, adopting CT scanning to confirm the loading effect of the lunar soil sample; s3, applying confining pressure to the lunar soil sample to preset pressure and maintaining for preset time; s4, acquiring an initial scanning image of the lunar soil sample before the axial pressure is applied by adopting CT (Computed Tomography) scanning; s5, axial pressure is applied to the lunar soil sample, a scanning image is obtained through CT scanning, and synchronous CT triaxial testing of the lunar soil sample is achieved. According to the method, the step of confirming the sample loading effect through CT scanning is adopted, the precision of a test result can be improved on the basis of ensuring the accuracy of trace real lunar soil sample loading, the authenticity and reliability of the test result are ensured, meanwhile, repeated sample loading caused by sample loading operation errors is avoided, and lunar soil loss can be reduced.

The invention discloses a method for analyzing nitrogen isotope in lunar soil, and relates to the technical field of lunar soil analys.The method comprises the steps that an analysis system composed of a heating cavity and a quadrupole mass spectrometer is prepared, and a connecting pipe is provided with a control valve; preparing a plurality of mixed gases of carbon monoxide and nitrogen in different proportions, measuring and recording the gas pressure linear change slope through an analysis system, and establishing a database; lunar soil is put into a heating cavity to be heated, precipitated gas is measured, the slope is recorded, the mixing proportion is determined according to the measured slope and a database, and the nitrogen isotope ratio is obtained by deducting the amount of carbon monoxide. The method effectively avoids carbon monoxide interference, improves measurement accuracy, is simple and convenient to operate, reduces in-orbit measurement load weight, and provides a reliable analysis means for scientific research of the moon and the planet.

The invention relates to an intelligent particle identification method for lunar soil particle screening, which comprises the following steps of: acquiring an optical signal, image data and a surface electrical signal of the same lunar soil sample particle to form a multi-modal feature set of each lunar soil sample particle; carrying out standardization processing on the multi-modal feature set; constructing a multi-modal deep learning neural network model based on a CNN + MLP + splicing fusion module structure; performing supervised learning training on the multi-modal deep learning neural network model to obtain a trained multi-modal deep learning neural network model; and inputting the standardized data into the trained multi-modal deep learning neural network model to realize particle classification. According to the method, an intelligent identification integrated deep learning model is adopted, the functions of particle shape distinguishing, component identification, particle size sorting and the like are carried out by utilizing an intelligent algorithm, automatic classification, clustering and attribute prediction can be realized, manual marking one by one is not needed, and the working efficiency is effectively improved.

The invention discloses a device and a method for exploiting water-ice resources in a permanent shadow area of the moon, and belongs to the field of utilization of in-situ resources of the moon. The water and ice resource mining device for the permanent shadow area of the moon is arranged on one side of a movable platform and comprises a feeding mechanism, the feeding mechanism comprises a nut movable plate capable of ascending and descending, and a rotary driving mechanism and a heating extraction mechanism are arranged on the nut movable plate; the heating extraction mechanism comprises a plurality of drill pins which are uniformly distributed in the circumferential direction, and the outer sides of the drill pins are sleeved with alternating coils; the rotary driving mechanism comprises a rotary driving motor capable of driving the drill point to rotate; after the drill point drills into lunar soil, heating to volatilize and vaporize ice; the device further comprises a water vapor transfer mechanism and a condensation collection mechanism, and the water vapor transfer mechanism is located at the lower end of the device and can guide water vapor into the condensation collection mechanism to be condensed and collected. The problems that an existing lunar soil water-ice mining method is small in effective heating range of deep lunar soil, low in water-ice mining efficiency and difficult to be suitable for large-scale water-ice extraction of the moon are solved.

The invention discloses a low water content and H isotope known simulated lunar soil preparation system, which comprises a standard water source sample pipe, a vaporization pipeline, a sample chamber, a vacuum pipeline and a dry nitrogen pipeline, the standard water source sample pipe is connected with the gas inlet side of the sample chamber through the vaporization pipeline, the gas outlet side of the sample chamber is connected with the vacuum pipeline, and the dry nitrogen pipeline is connected with the sample chamber through the vaporization pipeline. The vaporization pipeline is used for vacuumizing to a set vacuum degree, comprises a temperature-controlled buffer chamber, a first pipeline, a mixing chamber and a second pipeline, and is used for inhibiting low vacuum and H isotope fractionation; a first pressure gauge is arranged on the gas inlet side of the sample chamber, a second pressure gauge is arranged on the gas outlet side of the sample chamber, and when the pipeline pressure of the gas inlet side and the gas outlet side of the sample chamber is monitored to be stable, it is judged that the steam and soil combination process is finished. The method can be used for preparing the simulated lunar soil with low water content and known H isotope.

The invention discloses a lunar base building photovoltaic integrated structure based on energy and heat comprehensive management, relates to the technical field of lunar environment control and electric energy, and solves the problems of overtemperature, temperature loss and difficult energy supply of a cabin of a lunar base. The system comprises a reflective thermal insulation layer, a photovoltaic panel, a thermoelectric power generation layer, a phase change heat storage layer and a sintered lunar soil layer, wherein the reflective thermal insulation layer, the photovoltaic panel, the thermoelectric power generation layer, the phase change heat storage layer and the sintered lunar soil layer are sequentially arranged from top to bottom; the thermoelectric power generation layer comprises a plurality of thermoelectric generators; and a phase change heat storage material is arranged in the phase change heat storage layer. The self-adaptive thermal control system is constructed through the energy-thermal control deep coupling design, effective thermal management of the day and night extreme environment of the lunar base building is achieved, effective utilization of light energy is achieved through the photovoltaic panel and the thermoelectric generator, and the productivity burden of core power generation equipment is reduced.

The invention relates to the field of polypropylene fiber preparation, and particularly discloses a polypropylene fiber reinforced simulated lunar soil geopolymer material and a preparation method thereof, the polypropylene fiber reinforced simulated lunar soil geopolymer material comprises the following components by weight: TJ-1 simulated lunar soil; as a main raw material; the length of the polypropylene fiber is 3-9 mm, and the mixing amount of the polypropylene fiber is 0.1-0.6 wt% (based on the total weight of the TJ-1 simulated lunar soil); the composite alkali activator is composed of sodium hydroxide, calcium hydroxide and sodium silicate nonahydrate; by optimizing the length and the mixing amount of the polypropylene fiber (PPF), the compressive strength and the breaking strength of the simulated lunar soil geopolymer are remarkably improved, particularly when the length of the fiber is 6 mm and the mixing amount is 0.4%, the compressive strength and the breaking strength both reach the maximum value and are improved by 54.6% and 117.7% respectively compared with a reference group without the fiber, and the compressive strength and the breaking strength of the simulated lunar soil geopolymer are greatly improved. The improvement is crucial to the application of lunar building materials because it can enhance the structural stability and bearing capacity of lunar buildings.

The invention discloses a lunar soil penetration type shearing mechanical in-situ testing device, and relates to the field of testing devices for deep space exploration. The blade conical head is suspended; the penetration and recovery mechanism is arranged between the bracket and the blade conical head; the first driving mechanism is arranged between the bracket and the injection and recovery mechanism; the first driving mechanism is used for driving the penetrating and recycling mechanism to ascend and descend so as to drive the blade conical head to penetrate and recycle. And the second driving mechanism is arranged between the penetration and recovery mechanism and the blade conical head so as to drive the blade conical head to rotate and shear. Through cooperative driving control of the penetration and recovery mechanism, the blade conical head, the first driving mechanism and the second driving mechanism, automatic penetration, shearing and recovery of the blade conical head can be achieved, and manual penetration and recovery are not needed; the device is more suitable for being installed on a lunar vehicle for unmanned lunar soil in-situ mechanical testing in a lunar exploration task, and the exploration efficiency is improved.