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312 results about "Micro gravity" patented technology
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7-DOF (degree of freedom) space manipulator ground microgravity hybrid simulation method
InactiveCN103144104ASmall footprintRealize three-dimensional space movementProgramme-controlled manipulatorEngineeringDegrees of freedom
The invention discloses a space manipulator ground microgravity hybrid simulation method, and particularly relates to a realization method for ground-based simulation of a space microgravity environment by a 7-DOF space manipulator. Gravity compensation is realized at the middle part of the 7-DOF space manipulator by adopting the gas flotation method; the middle part of the 7-DOF space manipulator is supported on two gas flotation feet; shoulder parts and wrist parts at two ends as well as an end effector adopt static balance mechanisms to realize gravity compensation; two static balance mechanisms are designed, respectively named as a shoulder part static balance mechanism and a wrist part static balance mechanism, and used for realizing gravity compensation for a 2-DOF manipulator formed by a shoulder joints 1 and 2 and the end effector as well as gravity compensation for a 3-DOF manipulator formed by wrist joints 5, 6 and 7 and the end effector, as a result, gravity compensation for the whole space manipulator system is realized.
Owner:BEIJING UNIV OF POSTS & TELECOMM
Microgravity air floatation target satellite simulator system with five degrees of freedom
InactiveCN102520719ACompact structureSimple structureSimulator controlAttitude controlWireless dataKnowledge Field
The invention relates to the research field of a microgravity simulating platform of a space robot, in particular to a microgravity air floatation target satellite simulator system with five degrees of freedom. The system consists of three parts, namely a movement simulator, a satellite simulator and a ground control panel. The movement simulator simulates the states of zero gravity, low friction and micro interference of a base satellite; the satellite simulator has a basic single-shaft attitude adjustment and track control function under a condition that a satellite provided by the movement simulator is in a track movement simulating environment, comprises a sensor, a controller and an actuating mechanism (a counteractive flywheel and a cold gas injecting system), and is provided with auxiliary systems such as a power system, a wireless communication assembly, a structural component and the like; and the ground control panel provides a basic function of the wireless data communication between a target satellite and the ground, and realizes the control on the target satellite and the receiving, storage and display of the data.
Owner:BEIJING UNIV OF POSTS & TELECOMM
Mini-Cell, On-Orbit, Temperature Re-calibration Apparatus and Method
A method for on-orbit calibration of the temperature sensors of a simulated blackbody is disclosed. The method may include selecting a simulated blackbody traveling in a micro-gravity environment and comprising a sensor, a container positioned proximate the senor and containing a material, and a heat transfer device positioned proximate the at least one container. The heat transfer device may transition the material through a phase change. The temperature sensor may monitor the temperature of the material during the phase change. A correction may be calculated to correct any disparity between the temperature reported by the temperature sensor during the phase change and the known plateau temperature corresponding to that phase change. The correction may be applied to subsequent temperature readings obtained using the temperature sensor.
Owner:UTAH STATE UNIVERSITY
Active response gravity offload and method
ActiveUS9194977B1Minimize swing energyMinimizing swing energyAngle measurementCosmonautic condition simulationsThree dimensional simulationControl system
A variable gravity field simulator can be utilized to provide three dimensional simulations for simulated gravity fields selectively ranging from Moon, Mars, and micro-gravity environments and / or other selectable gravity fields. The gravity field simulator utilizes a horizontally moveable carriage with a cable extending from a hoist. The cable can be attached to a load which experiences the effects of the simulated gravity environment. The load can be a human being or robot that makes movements that induce swinging of the cable whereby a horizontal control system reduces swinging energy. A vertical control system uses a non-linear feedback filter to remove noise from a load sensor that is in the same frequency range as signals from the load sensor.
Owner:NASA
Astronaut exercising apparatus
InactiveCN101070096AAvoid sufferingMeet the needs of simulated gravity fieldCosmonautic condition simulationsPull forceElectric machine
The invention provides an astronaut training device. It includes the frame, a set of rope driving device installed on the four corners of the frame which the rope is connected to a cestus and the run machine is set under the frame; the rope driving device is made up of the servo electric machine with the coder fixed on the frame middle, the reducer, the trolley, the pull sensor installed under the frame, the crown block and its angle sensor, the over wheel and its angle sensor, the rope with one end fixed around the trolley and the other end connected to the cestus around the crown block; the pull sensor is connected to the rope between the trolley and the crown block. The invention can simulate the gravity field in the micro gravity condition to train the astronaut to avoid get the space flight sport illness, also the invention cab be used for recovering device.
Owner:HARBIN ENG UNIV
Microfluidic bubble removal device and preparation method thereof as well as microfluidic device
InactiveCN104225964AAvoid dependenceMeet exhaust requirementsLiquid degasificationLaboratory glasswaresEngineeringMicro gravity
The invention discloses a microfluidic bubble removal device and a preparation method thereof as well as a microfluidic device adopting the microfluidic bubble removal device. The microfluidic bubble removal device comprises a channel bottom layer and a porous drainage layer located above the channel bottom layer, wherein a microfluidic channel is formed between the channel bottom layer and the porous drainage layer, and at least one boss strip is arranged on the side, located on the microfluidic channel, of the channel bottom layer. According to the invention, dependence of the traditional microfluidic air removal method on gravity is eliminated, the air removal efficiency can be increased, and the air removal requirement of the microfluidic device in a micro-gravity environment can be met. The microfluidic bubble removal device is integrated with other microfluidic chips easily and can remove bubbles of liquids with different viscosities.
Owner:TSINGHUA UNIV +1
Experimental system and ground experimental method for gecko-inspired robot under micro-gravity environment
ActiveCN104859746ASmooth motionIncrease passive degrees of freedomCosmonautic condition simulationsVehiclesVolumetric Mass DensityOperability
The invention discloses an experimental system for a gecko-inspired robot under a micro-gravity environment, and belongs to the technical field of robots. The experimental system comprises a gecko-inspired robot mechanism, an air balloon, a three-freedom motion platform and a motion control unit, wherein the air balloon is used for providing gravity compensation to the gecko-inspired robot mechanism; the motion control unit is used for controlling the gecko-inspired robot mechanism to operate; the gecko-inspired robot mechanism comprises a machine body and four limbs of the same structure, which are connected with the machine body, and any two adjacent limbs are symmetrical; and the density of gas filled in the air balloon is smaller than the air density. According to the experimental system, the micro-gravity environment is simulated by the air balloon with the filled gas density smaller than the air density, and the gravity compensation of a micro robot under a three-dimensional space is realized, so that the experimental system is low in cost, high in operability and high in reliability in comparison with a conventional method. The invention further provides an experimental method for the gecko-inspired robot under the micro-gravity environment.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Temperature acquisition system in multiple channels suitable to examination of microgravity liquid
InactiveCN1796950AAvoid precision lossReduce complexityAerodynamic testingThermometers using electric/magnetic elementsData acquisitionEngineering
The invention relates to a multichannel temperature collecting system applied to micro-gravity fluid test, comprising interface filter circuit, multichannel switching module, thermoelectric couple temperature collecting module, two-stage signal amplifying module, A / D collecting module, couple failure detecting alarming module, central control unit and voltage stabilizing power supply module, where the temperature sensor is a thermoelectric couple to collect small temperature signal and completes multichannel temperature data collection by analog switch; after passing through a thermoelectric couple amplifier, completing linearization and cold end compensation, and amplifying the signal of the thermoelectric couple, where the linear output absolute value is 10 mv / deg.C, and after amplifying by the second-stage operational amplifier, making the signal output range is 0-5 V / 10V, corresponding to the whole temperature range of the fluid testing device, such as (0-120 deg.C); converting the temperature analogue quantity into digital quantity through the A / D collecting module and inputting the digital quantity into the central control unit. The system is simple in structure, and has high temperature measuring stability and good consistency.
Owner:NAT SPACE SCI CENT CAS
Device and method for simulating space mechanical arm to capture ground three-dimensional space microgravity of target satellite
ActiveCN105539890AVerify Motion ControlVerify reliabilityCosmonautic condition simulationsToolsThree-dimensional spaceMicrogravity Simulation
The invention provides a device and method for simulating a space mechanical arm to capture ground three-dimensional space microgravity of a target satellite, and relates to a device and method of the ground three-dimensional space microgravity. The problem that the movement of a floating satellite base in the three-dimensional space and operation process of the space mechanical arm is not considered is solved. The device comprises two industrial mechanical arms, the space mechanical arm, a hand eye camera, a capturing paw, a capturing connector, a service satellite body simulator, a target satellite body simulator and six-dimensional force and torque sensors; the method comprises the steps that target satellite movement is simulated; the position and attitude of the target satellite and movement information of joints of the space mechanical arm are determined; movement information of a service satellite body simulator base and the industrial mechanism arms is calculated; the capturing connector captures the target satellite body simulator in a capturing paw area; a movement state of the service satellite body simulator is achieved by simulating a real target satellite movement sate. The device and method for simulating the space mechanical arm to capture the ground three-dimensional space microgravity of the target satellite is applied to the field of space mechanical arm ground three-dimensional space microgravity simulation.
Owner:HARBIN INST OF TECH
Micro-low-gravity simulation apparatus and simulation test method
PendingCN108423202AReduce the effect of inertiaImprove flexibilityCosmonautic condition simulationsMicrogravity SimulationEngineering
The invention provides a micro-low-gravity simulation apparatus and test method. The simulation apparatus comprises a magnetic guiding panel, a rotating mechanism, an arc guide rail, a suck-back typebearing, a pulley block, a suspension mechanism and a fixed pulley; the magnetic guiding panel and the arc guide rail are respectively horizontally arranged, and the center of the arc guide rail is disposed on a rotating axis of the rotating mechanism; the suck-back bearing is stabilized on a noncontact balance point of a bottom surface of the magnetic guiding panel; the suspension mechanism is suspended on the suck-back bearing by virtue of the pulley block, one end of a rope is fixed on a sliding block of the arc guide rail, and the other end passes by the first fixed pulley to be provided with a weight block in a suspension manner. By adopting the micro-low-gravity simulation apparatus of the invention, a low-cost micro-gravity simulation experimental environment is provided, the suck-back type bearing is combined with an air floatation technology and an electromagnetic technology, the micro-low-gravity simulation apparatus can be adsorbed on the lower surface of the magnetic guiding panel and can move freely in a bottom plane of the magnetic guiding panel; and moreover, the micro-low-gravity simulation apparatus has the advantages of no friction and no contact, so that the testinterference is greatly reduced, and the accuracy of a test simulation result is further improved.
Owner:TIANJIN AEROSPACE ELECTROMECHANICAL EQUIP RES INST
Multi-medium complex-environment high-precision vision/inertia combination navigation method
InactiveCN104833352AAvoid pollutionAvoid divergenceNavigation by speed/acceleration measurementsElectromagnetic fieldElectromagnetic environment
The invention provides a multi-medium complex-environment high-precision vision / inertia combination navigation method which is suitable for combination navigation of an underwater vehicle under a complex electromagnetic environment in a transparent medium. By means of the underwater vehicle for simulating rendezvous and docking of a spaceship and a satellite in a space micro-gravity environment, important test data and test verification are provided for the rendezvous and docking. The whole experiment system is used on ground. By means of buoyancy of water and adjustment of the direction of the ground electromagnetic field and the intensity of the electromagnetic field, the underwater vehicle is in a neutral buoyancy level, thereby satisfying an equivalent test condition of coincidence of space and ground. The multi-medium complex-environment high-precision vision / inertia combination navigation method can be used for controlling the underwater vehicle for simulating rendezvous and docking in space, so that the attitude, the speed, the position and the acceleration information of the underwater vehicle can be measured accurately.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Three-dimensional active suspension type spacecraft microgravity stimulation device
ActiveCN106081173ASolving Microgravity Simulation ProblemsReduce weightCosmonautic condition simulationsBall bearingTorque motor
The invention provides a three-dimensional active suspension type spacecraft microgravity stimulation device and relates to a spacecraft microgravity stimulation device. The invention solves the problem that the present spacecraft microgravity ground-based simulation method is only limited to the two-dimensional free motion of the spacecraft and cannot be adopted for finishing the motion experiment of the three-dimensional space of the spacecraft. Two Y-directional linear guide rails are horizontal and are mounted on the upper surface of a frame in parallel; a Y-directional servo platform is arranged on each of the Y-directional linear guide rails; an X-directional linear guide rail is connected between the two Y-directional servo platforms; an X-directional servo platform is arranged on the X-directional linear guide rail; a torque motor and a reel are arranged on the X-directional servo platform; an angle sensor and a laser ranging sensor are mounted on the lower end face of the X-directional servo platform; a sling hinge point is arranged on the X-directional servo platform; the upper end of the sling is wound on the reel; a plane reflector and a tension sensor are mounted on the sling from top to bottom; a ball bearing is arranged at the lower end of the sling. The three-dimensional active suspension type spacecraft microgravity stimulation device is applied to spacecraft microgravity stimulation.
Owner:HARBIN INST OF TECH
Intelligent three dimensional microgravity air feet
InactiveCN101575013ASolve the difficulties of complex three-dimensional motion microgravity simulationHigh precisionCosmonautic condition simulationsServo actuatorCoupling
The invention relates to intelligent three dimensional microgravity air feet, which pertains to the microgravity simulation experiment device of spatial mechanism. Three air feet are arranged on the lower side of a supporting plate and a shell and three steering bars are arranged on the upper side of the supporting plate. The bottom part and the upper part of the shell are respectively provided with a servo-actuator and an antithrust bearing. A shaft joint and a speed reducer are arranged between the servo-actuator and the antithrust bearing. The lower end of a screw bolt inserted in the antithrust bearing bore is connected with the shaft joint. Transmission nuts matched with three sleeves are arranged on a connection board. A linear bearing is matched with and arranged on the lower end of the sleeve. Three flexible spring mechanisms are connected with a working plate on which a sensor and a joint for a test piece bracket are arranged. The intelligent air feet can effectively solve the technical problem of microgravity simulation during the complicated three dimensional movement of the spatial mechanism and is characterized by simple structure, high simulation precision, flexible test method, simple technique, small floor occupation and convenient debugging, thus being particularly applicable to the microgravity simulation test of complicated three-dimensional movement.
Owner:HARBIN INST OF TECH
Harmonic drive-containing space manipulator simulation device
ActiveCN103979121AStudy kinetic output characteristicsAdjust tensionCosmonautic condition simulationsPull forceReduction drive
The invention provides a harmonic drive-containing space manipulator simulation device, and belongs to the technical field of aerospace engineering. The device adopts harmonic speed reducer drive and a space manipulator microgravity test mechanism, and comprises the following five parts, namely a base, a joint driving mechanism, an arm lever stiffening regulating mechanism, a suspension mechanism, and a movement precision test mechanism, wherein the base has a 90-degree installation adjustable function; the joint driving mechanism adopts a form of servo motor driving and harmonic speed reducer drive; the arm lever stiffening regulating mechanism simulates different flexibilities of an arm lever under a stress stiffening effect by adopting a tensile force pre-tightening mechanism with a replaceable arm lever sleeve; the suspension mechanism comprises an aluminum profile bracket and a two-dimensional suspension mechanism without additional constraint; the movement precision test mechanism comprises a PSD (position sensitive detector) and a laser generator, and can measure the flexible deformation amount at the tail end of a manipulator. The device can realize the dynamic performance test of the harmonic drive space manipulator in a microgravity environment, and has a wide application prospect in the field of aerospace engineering.
Owner:TSINGHUA UNIV
Zero (micro) gravity suspension method and device with zero-frequency vibration isolation characteristic
ActiveCN106742091ASolve vibration isolation problemsOvercome the difficult problem of avoiding system resonanceCosmonautic condition simulationsStructural dynamicsNet force
The invention discloses a zero (micro) gravity suspension method and device with a zero-frequency vibration isolation characteristic and relates to the technical field of zero gravity or micro gravity environmental simulation in the outer space. The problems of space ground simulation, low-frequency and ultralow frequency vibration isolation and the like are solved. The series of suspension devices can be each substantially seen as being formed by connecting a vertical spring and a vertical spring which support gravity support through a connecting rod and a suspended object. According to the basic principle, support force which is equal to the magnitude of the gravity and opposite to the direction of the gravity is provided through geometric nonlinearity arrangement of a spring connecting rod mechanism, so that the resultant force acted on the suspended object within the device design range is zero, and thus the suspended object is in the suspension state. The zero (micro) gravity suspension device can be used for space zero and micro gravity environments including ground simulation experiments such as spacecraft docking, large space flexible structure dynamics performance tests and astronaut training. Through the suspension characteristics of the zero (micro) gravity suspension method device, the problems of low-frequency and ultralow frequency vibration isolation can be solved effectively, and the defect that through a traditional vibration isolation theory, system resonance is difficult to be avoided is overcome.
Owner:HARBIN INST OF TECH
Spiral type gas-liquid separator under micro-gravity based on porous material
ActiveCN104667584AIncrease flow rateAchieve separationLiquid degasificationWater/sewage treatment by degassingVapor–liquid separatorGas phase
The invention discloses a spiral type gas-liquid separator under micro-gravity based on a porous material. The spiral type gas-liquid separator comprises a shell, wherein the shell is provided with a mixed fluid inlet, a gas-phase working medium outlet and a liquid-phase working medium outlet; the shell is internally provided with a hydrophobic-phase porous material column located at the axis of the shell, a lyophilic-phase porous material layer located on the inner wall of the shell, and a baffle plate is arranged between the hydrophobic-phase porous material column and the lyophilic-phase porous material layer and is in spiral arrangement along the axial direction of the shell; and the two side edges of the baffle plate are fixedly connected with the outer wall of the hydrophobic-phase porous material column and the inner wall of the lyophilic-phase porous material layer respectively. Therefore, the spiral type gas-liquid separator under the micro-gravity based on the porous material combines the advantages of a static separator and a dynamic separator; and meanwhile, the respective disadvantages are also overcome. The spiral type gas-liquid separator has the advantages of great gas-liquid separation amount, no power consumption, high reliability and the like and has a very good application prospect under a micro-gravity environment.
Owner:ZHEJIANG UNIV
Mini-Cell, On-Orbit, Temperature Re-Calibration Apparatus and Method
ActiveUS20110125444A1Precise plateau temperatureRadiation pyrometryThermometer testing/calibrationEngineeringMicro gravity
A method for on-orbit calibration of the temperature sensors of a blackbody is disclosed. The method may include selecting a blackbody traveling in a micro-gravity environment and comprising a sensor, a container positioned proximate the sensor and containing a material, and a heat transfer device positioned proximate the at least one container. The heat transfer device may transition the material through a phase change. The temperature sensor may monitor the temperature of the material during the phase change. Additionally, the state of the material may be measured by displacement of the container to improve the accuracy of the plateau temperature measurement. A correction may be calculated to correct any disparity between the temperature reported by the temperature sensor during the phase change and the known plateau temperature, measured at a threshold state of the material, corresponding to that phase change. The correction may be applied to subsequent temperature readings obtained using the temperature sensor.
Owner:UTAH STATE UNIVERSITY
Low-pressure liquefied gas thrust generating method for spacecraft
ActiveCN104828262AReduce weightImprove storage densityCosmonautic propulsion system apparatusSpacecraft guiding apparatusAttitude controlSelf locking
The invention relates to a low-pressure liquefied gas thrust generating method for a spacecraft. According to the method, a specially-designed thrust generating module is adopted to generate thrust and torque for the spacecraft and comprises a storage tank, a first pressure sensor, a charging / discharging valve, a self-locking valve, a thruster, a first temperature sensor and a first heater; the thrust generating module adopts a liquid-storage gas-use working mode, so that pressurized gas is not required to be additionally added into the storage tank, and the supply of a propellant can be driven by only using saturated vapor pressure of liquefied gas; thus, the thrust generating module only needs a liquid charging / discharging valve, and an additional gas charging / discharging valve is not required to be arranged, so that the weight of a system is greatly lowered, and thrust and torque, which have enough accuracy, can be provided for a miniature spacecraft in a microgravity environment and are applied to the attitude control, orbit control or formation flying of the miniature spacecraft.
Owner:BEIJING INST OF CONTROL ENG
Multi-star suspension type microgravity simulation system
ActiveCN109515769AIncrease the itineraryLess interferenceCosmonautic condition simulationsMicrogravity SimulationClassical mechanics
The invention relates to a multi-star suspension type microgravity simulation system which can solve the problem that an existing suspension method is prone to generating interfere during multi-star simulation and can be applied to the environment of multi-star simulation interlaced motion. The multi-star suspension type microgravity simulation system comprises a flat plate, a truss and a plurality of servo suspension type microgravity simulators; each servo suspension type microgravity simulator comprises a vector active following platform, an air-floating passive following platform, a lifting mechanism and a microgravity simulator, wherein the vector active following platform can be moved on the lower surface of the flat plate, the air-floating passive following platform is arranged on the vector active following platform, the lifting mechanism is fixed to the air-floating passive following platform, and the free telescopic end of the lifting mechanism is connected to the microgravity simulator; and the vector active following platforms drive the air-floating passive following platforms to move to the positions according to the positions of the microgravity simulators, the air-floating passive following platforms guarantee that the lifting mechanisms are located at the center positions of the vector active following platforms, the free telescopic ends of the lifting mechanisms are vertical, and accurate position following of the positions of the microgravity simulators is achieved.
Owner:HARBIN INST OF TECH
Longitudinal gravity compensation device with micro-gravity simulation implementation systems and six degrees of freedom for spatial mechanisms
ActiveCN104290932AEliminate frictional interferenceCompensation for high gravityCosmonautic condition simulationsBall bearingMicrogravity Simulation
The invention discloses a longitudinal gravity compensation device with micro-gravity simulation implementation systems and six degrees of freedom for spatial mechanisms, and relates to a gravity compensation device. By the aid of the longitudinal gravity compensation device, the problem of difficulty in implementing longitudinal gravity compensation by an existing gravity compensation mechanism in a scheme when spatial mechanisms are heavy can be solved. The longitudinal gravity compensation device is characterized in that an upper-layer platform, a middle platform and a lower-layer platform of the longitudinal gravity compensation device are sequentially arranged from top to bottom, a central upright column is vertically arranged between the lower surface of the upper-layer platform and the upper surface of the middle platform, the upper end of the central upright column is connected with the lower surface of the upper-layer platform by a ball bearing, the lower end of the central upright column is connected with the upper surface of the middle platform, four compensation systems are arranged on the upper surface of the lower-layer platform to form a square, the middle platform is connected with the lower-layer platform by the four compensation systems, and pneumatic feet are uniformly distributed on the lower surface of the lower-layer platform. The longitudinal gravity compensation device is used in the field of spaceflight.
Owner:HARBIN INST OF TECH
System for creating artificial gravity conditions in micro and hypogravity environments
InactiveUS20060229160A1Loss of bone densityShorten the timeClubsMuscle exercising devicesBone densityPlantar surface
A innovative resistance exercise system that helps preserve an astronaut's bone density, checks muscle atrophy and helps retain postural and gait stability during space missions while increasing neuromuscular activation and enhancing sensorimotor integration is presented. This innovative system comprises of a tight suit that covers the upper torso of the astronaut—from the top of the head to a little below the waist with magnets or electromagnets placed towards the lower end of the suit. When worn by astronauts on a magnetic or electromagnetic flooring (such as a treadmill's floorboard), a force of attraction is exerted on the magnetic end of the suit to create a downward pull that would be spread by the suit onto the muscular and skeletal systems of the astronaut right from the top of the head down to their feet (thereby also loading the vertebrae which extends into the neck region), as the astronaut seeks to keep his / her upright position. The suit may be used in combination with an internally ridged sole directed towards the plantar surface of the feet to stimulate the somatosensory receptors in this plantar surface of the feet. Prior methods of using chords to keep the astronaut in place on a treadmill restrict ease of movement, take a lot of time and do not load the head-neck region. The invention preserves the astronauts' good health longer and helps them function safely and efficiently in space or in the hypogravity of the Moon or Mars.
Owner:TALLURI SRIKRISHNA
Air flotation supporting device for space manipulator
The invention provides an air flotation supporting device for a space manipulator moving in the plane and relates to the field of air flotation supporting devices. The air flotation supporting device comprises a plane air foot assembly, a force sensor, a linear bearing spring assembly, a rolling wheel assembly, an arm rod containing ring, a first mounting plate, a second mounting plate, a third mounting plate, a fourth mounting plate and a rolling wheel mounting plate. The air flotation supporting device for the space manipulator is provided and used for a micro-gravity environment simulation test of the space manipulator. The force sensor senses the pressure applied to the upper plate and the lower plate to judge whether the center of gravity of the manipulator reliably falls on the air flotation supporting device or not. The manipulator can move slightly within the up-down reasonable position range through the linear bearing guide rail assembly, unexpected vertical movement is compensated for automatically, and it is guaranteed that the manipulator is in the horizontal state all the time. A manipulator rod of the manipulator can conduct slight friction rolling movement through the rolling wheel assembly.
Owner:BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS +1
Device for training and detecting extravehicular operation capability
InactiveCN102522020AImprove ability and qualityCosmonautic condition simulationsSimulatorsThree degrees of freedomAir compressor
The invention provides a device for training and detecting extravehicular operation capability. The device comprises an air compressor, a supporting platform, at least two air flotation systems, a space station system, an extravehicular spacesuit system and a data detector; the air flotation systems are arranged on the supporting platform and are connected with the air compressor; the space station system and the extravehicular spacesuit system are respectively arranged on the air flotation systems; and the air compressor provides air pressure for the air flotation systems after the air compressor is started, and the air flotation systems discharge airflow to generate air film between the air flotation system and the supporting platform so that the air flotation systems freely move and rotate on a plane of the supporting platform to simulate micro-gravity motion states of three degrees of freedom. The invention can provide a micro-gravity environment simulator for training and detecting extravehicular operation capability of astronauts so as to improve an extravehicular operation training effect of the astronauts and obtain technical data of the extravehicular operation of the astronauts.
Owner:BEIJING JIAOTONG UNIV
Culture methods of bone marrow stromal cells and mesenchymal stem cells, and manufacture method of graft cells for central nerve system diseases therapy
ActiveUS20120115224A1Improve survival rateGood treatment effectBioreactor/fermenter combinationsNervous disorderDiseaseBone Marrow Stromal Cell
Owner:YUGE LOUIS +1
Active anchoring mechanism with two-time drive function
The invention provides an active anchoring mechanism with the two-time drive function and relates to the active anchoring mechanism. The active anchoring mechanism aims at solving the problem that anchoring force is small after media are thrown into an existing anchoring mechanism due to the fact that an anchor tip in the existing anchoring mechanism can not be deformed. The large end of a step pushing rod is fixedly connected with a piston. A back taper is arranged inside the anchor tip and is arranged adjacent to the small end of the step pushing rod. An anchoring claw is fixed at the small end of the step pushing rod. Each stretching wing is installed on the large end of the anchor tip through each stretching wing pin, and a plurality of the stretching wings are arranged in a star-shaped mode. A thrust end cover is connected with the lower end of an expansion cylinder in a threaded mode. An anti-vibration pad is arranged on the upper end face of the thrust end cover. A piston body is arranged inside the expansion cylinder and connected with the expansion cylinder in a sliding mode. A plurality of blind holes are evenly distributed in the piston body along the radial direction of the piston body. A fire device is arranged on a fire connector. The outer wall of the upper end of the expansion cylinder is connected with a limiting ring in a threaded mode. The outer wall of a combustion room of an anchoring unit is in sliding connection with the inner wall of an end cover of the expansion cylinder. The active anchoring mechanism is applied to anchoring of landing devices and instruments and equipment under a micro gravity environment.
Owner:HARBIN INST OF TECH
Microgravity vacuum environment oriented lunar surface in-situ resource 3D printing device
ActiveCN110039771ASolve supply problemsReduce manufacturing costManufacturing enclosuresManufacturing material handlingManufacturing cost reductionTransportation energy
The invention discloses a microgravity vacuum environment oriented lunar surface in-situ resource 3D printing device, and belongs to the manufacturing field of spatial additive manufacturing. The device is characterized in that the obtaining and screening of surface particular materials of lunar soil, lunar dust and the like are achieved by a lunar surface in-situ resource grabbing and screening unit; a 3D printing shaping unit is formed through ink jetting, 3D printing is conducted by using screened particular materials, and the device is suitable for lunar surface microgravity vacuum environment and the 3D printing manufacturing of large components of future lunar base. The device has the advantages that the lunar surface in-situ resources are taken as printing consuming materials, the materials do not need to be carried to the moon through spatial transportation, so that transportation energy consumption is greatly reduced, the manufacturing cost is reduced, and the device is particularly suitable for the production of components of lunar base building facilities, mechanical parts and the like.
Owner:HUAZHONG UNIV OF SCI & TECH
Rapid solidification system and method for suspension large-dimension metal liquid drops under micro-gravity condition
The invention relates to a rapid solidification system for suspension large-dimension metal liquid drops under a micro-gravity condition. The rapid solidification system comprises a vacuum cavity, a suspension induction heating device, a motion detecting device and a rapid liquid quenching device, wherein the vacuum cavity comprises an electromagnetic suspension cavity, a micro-gravity cavity anda rapid liquid quenching cavity which are connected from top to bottom; the suspension induction heating device is provided with a tapered suspension induction coil which is formed by spiral winding,and the coil is arranged on the center of the electromagnetic suspension cavity for melting and suspending an alloy sample; the micro-gravity cavity is a hollow tube body, so that the alloy sample obtains micro-gravity; the motion detecting device is used for continuously and dynamically acquiring a temperature and a form of the alloy sample in dropping motion; and the rapid liquid cooling deviceis provided with a quenching cooling medium for realizing rapid liquid quenching solidification for the alloy sample. The rapid solidification system avoids heterogeneous nucleation generated by wallcontact while the sample is molten, so that the sample is deeply super-cooled, and therefore, tissue segregation caused by gravity effect is eliminated, and rapid solidification from millimeter-grademetal liquid drops to the centimeter-grade metal liquid drops is realized.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Artificial climate box capable of simulating multiple complex environment conditions
ActiveCN102553663ARealize simulationFlexible control of temperature and humidityHeating or cooling apparatusEnclosures/chambersX-rayEngineering
Owner:BEIHANG UNIV
Microwave cavity for cold atomic clock in micro-gravity environment
InactiveCN101807043AStable structureSmall cavity phase shiftApparatus using atomic clocksResonatorsMicrowave cavityCoupling
The invention provides a microwave cavity for a cold atomic clock in micro-gravity environment, which consists of coupling waveguide, a microwave cavity and a cover plate. The microwave cavity and the cover plate are combined to form a rectangular microwave cavity, wherein central cutoff waveguide is arranged on the central axis in the length direction of the microwave cavity; end cutoff waveguide extends from two ends of the microwave cavity along the central axis respectively; the central cutoff waveguide symmetrically separates the rectangular microwave cavity into four communicated areas, namely two guided wave areas on two sides of the central cutoff waveguide and two microwave action areas at two ends of the central cutoff waveguide; the coupling waveguide is vertically fixed at the symmetric central position of the cover plate; a microwave feeder mounting hole is reserved on the side wall of the coupling waveguide; and a microwave coupling slot on the symmetric central position of the cover plate forms a microwave coupling channel of the coupling waveguide and the rectangular microwave cavity. The invention provides the key technology of interaction between the microwave and atoms of the cold atomic clock in the micro-gravity environment.
Owner:SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
3D printing achieving method, printing system and jet flow control method under microgravity environment
ActiveCN105034376AImprove reliabilityImprove securityAdditive manufacturing apparatusJet flowSpace environment
The invention relates to the technical field of 3D printing equipment, in particular to a 3D printing achieving method, a printing system and a jet flow control method under the microgravity environment. A glue sprayer and a pressurizing sprayer are arranged, the glue sprayer sprays a layer of glue in the program assigned area firstly, and then the pressurizing sprayer melts hot melting wires and increases conveying. After the molten spraying wires are extruded out, bonding forming is carried out under the microgravity state. The flow of molten spray wires and the extruding bonding forming process are controlled by controlling the movement of the pressurizing sprayer. Accordingly, solid printing is achieved. The 3D printing purpose under the microgravity space environment is achieved. The 3D printing achieving method, the printing system and the jet flow control method can be used for 3D printing under the space environment.
Owner:CLOUD COMPUTING CENT CHINESE ACADEMY OF SCI
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