61 results about "Buffer gas" patented technology

The present invention improves storage efficiency by effectively using, in a simple form, the storage volume of a compressed gas storage part in which a compressed gas is stored. Provided is a compressed gas storage system (100) for storing a compressed gas which has been compressed by a compressor, said system comprising: a compressed gas storage part (300) in which a compressed gas is stored; a buffer gas storage part (310) in which a buffer gas is stored; a first cooler (306) that cools the buffer gas; a first adjustment valve (307) that is provided between the first cooler and the buffer gas storage part; a second adjustment valve (309) that is provided between a first heater and the buffer gas storage part; a second heater (312) that heats the buffer gas inside of the buffer gas storage part; and a control unit (320) that at least controls the temperatures of the first cooler, the first heater, and the second heater, and the degrees of opening of the first adjustment valve and the second adjustment valve.

The invention relates to a light-weight TPcon special solder strip annealing device which comprises a box body and a cooling water tank fixed to the surface of the box body, an upper annealing wheel, a third wheel and a driven wire passing wheel are rotationally arranged on the surface of the box body, and the driven wire passing wheel is located in an inner cavity of the cooling water tank. According to the special light-weight TPcon solder strip annealing device, a dynamic labyrinth sealing structure composed of a fluororubber sealing sleeve, an adjustable movable plate and a partition plate is arranged and combined with a gas storage tank buffer gas supply system, on the premise that a solder strip continuously penetrates through the dynamic labyrinth sealing structure, multiple zigzag gas leakage paths are formed, the gas leakage resistance is greatly increased, and the service life of the solder strip is prolonged. According to the system and the method, by matching with a micro-positive pressure environment maintained by the gas storage tank, 'on-demand supplementation 'is realized, most of nitrogen is sealed in the system for cyclic utilization, only extremely small leakage amount needs to be supplemented, and compared with a traditional continuous purging mode, more than 90% of nitrogen consumption can be saved, and the production cost is remarkably reduced.

The utility model relates to the technical field of gas detection, in particular to a hydrogen analyzer. The analyzer comprises an analyzer body, a gas inlet formed in the top of the analyzer body, a hydrogen treatment mechanism, a buffer gas supply mechanism and a rotating shaft I, the hydrogen treatment mechanism is arranged on the outer side of the gas inlet through threads; the buffer gas supply mechanism is arranged at the top of the hydrogen treatment mechanism; the first rotating shaft is rotationally arranged on the hydrogen treatment mechanism. According to the utility model, the hydrogen treatment mechanism is arranged, the filter plate is used for blocking and cleaning particle impurities in to-be-detected gas, and the molecular sieve in the filter box and the activated carbon in the placing box are used for absorbing other gases in the to-be-detected gas, so that the impurities can be effectively removed, and the hydrogen is ensured to smoothly enter the analyzer; therefore, the measurement accuracy is improved, the phenomenon that impurities interfere with a hydrogen detection signal and cause deviation of a measurement result is avoided, the concentration of hydrogen can be improved by absorbing other gases, and the measurement accuracy is improved.

An extreme ultraviolet light generation apparatus includes a chamber in which a target substance supplied to a plasma generation region is irradiated with laser light to generate extreme ultraviolet light, a laser device generating the laser light, a target supply unit supplying a droplet of the target substance toward the plasma generation region, a target collection unit collecting the target substance which has not been irradiated with the laser light, a first gas supply unit supplying a buffer gas into the chamber, and a processor controlling the first gas supply unit so that, in a period of the droplet being output, a first flow rate of the buffer gas to be supplied from the first gas supply unit in at least a part of a first period is smaller than a second flow rate of the buffer gas to be supplied from the first gas supply unit in a second period.

The invention relates to an atomic gas chamber and a preparation method thereof. The preparation method of the atomic gas chamber comprises the following steps: providing an atomic gas chamber glass bulb; rubidium steam is filled in the atomic gas chamber glass bulb; the atomic gas chamber glass bulb is filled with mixed gas; wherein the mixed gas comprises xenon 129, xenon 131, hydrogen and a buffer gas; the voltage division ratio of the xenon 129 to the xenon 131 is (1: 4)-(1: 9); carrying out heat preservation treatment on the atomic gas chamber glass bulb, and reacting rubidium steam with hydrogen to generate a rubidium hydride film layer; and the rubidium hydride film layer covers the inner wall of the atomic gas chamber glass bulb. According to the preparation method of the atomic gas chamber, provided by the invention, the atomic spin relaxation time of xenon 129 and xenon 131 can be prolonged, the relaxation performance of two isotopes can be balanced, the performance of the atomic gas chamber is further improved, and the requirements of application scenes such as a quantum inertia instrument on the atomic spin stability of the atomic gas chamber are met.

The application provides a gas pressure regulating device, a cold gas micro-propulsion system and a satellite, and relates to the technical field of cold gas micro-propulsion. The gas pressure regulating device comprises a high-pressure valve, a two-stage pressure reducing valve, a precision pressure regulating valve, a buffer gas cylinder and a pressure sensor. One end of the high-pressure valve is connected with a high-pressure gas cylinder, and the other end of the high-pressure valve is connected with the two-stage pressure reducing valve through a first pipeline. The precision pressure regulating valve is provided with a first interface, a second interface, a third interface and a fourth interface. The first interface is connected with the two-stage pressure reducing valve through a second pipeline, the second interface is connected with the pressure sensor through a third pipeline, the third interface is connected with the buffer gas cylinder through a fourth pipeline, and the fourth interface is connected with a thruster. Compared with the prior art, the gas pressure regulating device adopts a combination of two-stage pressure reduction, gas capacity buffering and gas pressure closed-loop precision regulation, can supply stable and low-noise gas to the thruster, and thus realizes high-stability and low-noise thrust output.

A ground support verification method for a buffer air capacity air supply strategy of an air cooling system belongs to the technical field of satellite propulsion systems, and comprises the following steps: a ground simulation system collects execution mechanism information output by a satellite; the ground simulation system collects the working time of an attitude and orbit control thruster and a pressure air supply control electromagnetic valve used by the cold air system; the ground simulation system calculates the consumption amount and the supplement amount of the working medium gas in the gas capacitor in each period through the working duration; the ground simulation system calculates the current air capacity pressure and the pressure variation; the ground simulation system performs fault simulation and fault pressure setting; the ground simulation system converts the pressure variation into a voltage value for output, and the satellite system receives the voltage value for pressure conversion and telemetering output; the ground simulation system calculates star attitude information through a control moment generated by air injection, generates sensor information through the star attitude information, and sends the sensor information to a satellite system to form whole data interaction and verification.

This invention discloses a miniature Faraday atom filter based on Faraday anomalous dispersion and its implementation method, comprising: an alkali metal atom gas cell with antireflection films coated on both sides of the light-passing holes corresponding to the wavelengths of the alkali metal atom absorption lines, and filled with a buffer gas; a permanent magnet or coil surrounding the alkali metal atom gas cell to generate a uniform strong magnetic field parallel to the direction of light propagation; first and second polarizers located on both sides of the alkali metal atom gas cell and facing it directly; the polarization directions of the two polarizers are perpendicular to each other; and a temperature control system that heats and maintains the temperature of the alkali metal atom gas cell, and detects and controls the temperature. This invention reduces the size of the Faraday atom filter to 1 / 1000 of the mainstream size, improves mechanical stability, expands its applicability, and is expected to achieve plug-and-play functionality, greatly broadening the application of Faraday atom filters in fields such as space communication, laser technology, quantum information, and metrology.

The application discloses a phase change pneumatic working device and a working method, which comprise a heat supply mixed phase changer, a first pipeline, a second pipeline, a parallel pipeline composed of an extrusion gas source supply branch and a phase change medium supply branch, one end of the first pipeline is communicated with the parallel pipeline, the other end of the first pipeline is communicated with the heat supply mixed phase changer, the heat supply mixed phase changer is provided with an expansion working pipeline away from the one end of the first pipeline, one end of the second pipeline is communicated with the parallel pipeline, and the other end of the second pipeline is an air inlet. The extrusion gas source supply branch of the application can inject air into the mixed chamber of the heat supply mixed phase changer at the beginning of work, discharge the initial water in the mixed chamber, form a larger buffer gas chamber in the chamber, facilitate the subsequent blowing process, and effectively help the initial air to form an initial air cushion in the water tank, so that the blowing efficiency of the phase change power device in the early stage is effectively improved.

The application provides a full-autonomous pressure dynamic balance adjusting method of a double-branch cold gas propulsion system, and is suitable for a spacecraft provided with a pressure sensor cold gas propulsion system. At present, there is no system method for the validity of low-pressure pressure transmission data and the autonomous adjusting control of buffer gas container pressure in a traditional satellite cold gas propulsion system. In order to solve the above problems, the patent applicant designs a full-autonomous pressure dynamic balance adjusting algorithm of a double-branch cold gas propulsion system. The method comprises two modules: the validity of low-pressure pressure transmission data and the autonomous adjusting control of gas container pressure. The second module performs pressure adjusting calculation of double-branch buffer gas containers on the basis of the first module, and opens the pressure control electromagnetic valves of each branch to perform air supplementing operation when the gas container pressure decreases. The pressure following control strategy is adopted to realize the pressure dynamic balance control of the double-branch symmetrical discharge system, and the double-branch buffer gas container pressure autonomous adjusting and air supplementing problem of the satellite cold gas propulsion system is well solved by adopting the method.

The invention relates to the field of high-voltage cable metal aluminum sheath processing, in particular to a gas recycling device and method for argon arc welding of a high-voltage cable. The gas recycling device for argon arc welding of the high-voltage cable comprises an explosion-proof type recycling gas pump, a first sealing pipeline and a second sealing pipeline, an inlet of the high-precision gas filtering device is connected with an outlet of the explosion-proof recovery gas pump, and the high-precision gas filtering device is used for removing welding slag and oil dirt impurities in the recovered gas; an inlet of the buffer gas storage tank is connected with an outlet of the high-precision gas filtering device through a second sealing pipeline, and the buffer gas storage tank is used for storing the purified gas. By innovatively designing the helium recovery and circulation system, efficient recovery, purification, storage and reuse of residual helium are achieved, helium consumption and production cost are remarkably reduced, production interruption caused by frequent bottle replacement is reduced, and meanwhile the stability of welding quality is guaranteed.

Hollow tungsten electrode coaxial MIG / MAG composite welding device and welding method. The welding efficiency of the hollow tungsten electrode coaxial wire feeding welding technology is still low. The composition comprises: a hollow tungsten electrode (1), a tungsten electrode holder (2), a protective gas cover (3), a MIG / MAG welding wire (4), an insulating porcelain tube (5), a plasma buffer gas chamber (12), a TIG power supply (13) and a MIG / MAG power supply (14); the hollow tungsten electrode is clamped by the symmetrically arranged tungsten electrode holder, the protective gas cover is located outside the tungsten electrode holder, and the upper end of the hollow tungsten electrode is fixed with the plasma buffer gas chamber; the hollow tungsten electrode is inserted with the insulating porcelain tube, the insulating porcelain tube is inserted with the MIG / MAG welding wire, and the gap between the MIG / MAG welding wire and the hollow tungsten electrode forms an ion gas channel (15). The present application is used for hollow tungsten electrode coaxial MIG / MAG composite welding.

This invention relates to a shock tube gas distribution method and system. During shock tube experimental gas preparation, a gas distribution column and a mixing tank are used in conjunction to actively control the internal pressure of the gas distribution column. An additional pressure-reducing stage is added between the gas cylinder and the mixing cylinder. The gas distribution column buffers large fluctuations in gas flow and pressure, resulting in a more stable gas flow and significantly improving the accuracy of the experimental gas component ratio. Simultaneously, the mixing tank has only one inlet connecting to the gas distribution column and one outlet connecting to the shock tube, improving the tank's strength and pressure-bearing capacity, and enhancing gas distribution safety.

The apparatus includes a vacuum chamber, a first component, a second component movable relative to the first component, and a gas injector. The vacuum chamber includes a first vacuum region and a second vacuum region. The first component is positioned at the boundary between the first vacuum region and the second vacuum region. The second component is positioned at the boundary within the second vacuum region and separated from the first component by a gap. The gas injector is configured to inject buffer gas into the gap between the first and second components through at least one hole located in at least one of the first and second components. The buffer gas provides a dynamic seal between the first and second vacuum regions during the relative movement of the second component relative to the first component.

The application provides a multi-wavelength output double-circulation optical pumping Xe laser, which uses metastable Kr generated by gas discharge as an energy source, transmits energy by collision with ground state Xe to realize inversion in Xe system; meanwhile, uses two laser beams of 882nm and 828nm as pumping sources to maintain particle number inversion of Xe system and output multiple laser wavelengths. The application fully utilizes the effect of buffer gas Kr, realizes acceleration of collision relaxation process between energy levels and also plays a role in resonance energy transmission; the method effectively improves the utilization rate of Xe primary discharge particles, further improves the efficiency of optical pumping inert gas metastable state laser, and realizes primary electric pumping and multiple optical circulation.

The utility model discloses a tool for preparing a blade coating through CVD (Chemical Vapor Deposition), and belongs to the technical field of chemical vapor deposition. The tool comprises three layers of base plates which are arranged in parallel from top to bottom, and blades on which coatings are to be deposited are placed on the base plates; the three layers of substrates are supported and connected through supporting rods; wherein three coaxial round holes are formed in the center positions of the three layers of base plates, and air inlet hole rods are arranged in the three round holes in a penetrating mode; the air inlet hole rod is of a hollow rod structure, and a plurality of air outlet holes are evenly formed in the side wall of the hollow rod. The top end of the air inlet hole rod is sealed, and the bottom end of the air inlet hole rod communicates with the air inlet cloud disc. The tool is arranged in the reaction kettle, and can effectively buffer gas, so that the gas is fully mixed, and the gas diffusion is facilitated; and a larger effective airflow circulation area can be created, and deep holes and thin holes of the blade can be uniformly plated.

To provide a photomodification apparatus that improves efficiency while maintaining uniformity in the photomodification process. [Solution] The processing chamber of the photomodification apparatus for a workpiece has a mounting section for placing the workpiece, which is positioned opposite the light source with a gas flow space in between, a plurality of gas supply ports, and at least one gas outlet. The plurality of gas supply ports include process gas supply ports that supply a process gas capable of modifying the workpiece by irradiation with ultraviolet light to the gas flow space, and buffer gas supply ports that supply a buffer gas that absorbs ultraviolet light less readily than the process gas to the gas flow space. The buffer gas supply ports are positioned closer to the light source than the process gas supply ports in the first direction.

The utility model discloses an arc extinguishing mechanism of a circuit breaker, which comprises a circuit breaker mounting seat, the upper surface of the circuit breaker mounting seat is fixedly connected with three groups of closing mechanisms, and arc blowing mechanisms are arranged in the closing mechanisms; the switching-on mechanism comprises a base, an input pole fixed on the rear side of the upper surface of the base and an output pole fixed on the front side of the upper surface of the base, a switching-on knife switch is hinged to the top end of the output pole, and a contact is connected to the top end of the input pole; the arc blowing mechanism comprises a gas box and a gas conveying assembly fixed to the upper surface of the gas box. According to the technical scheme, mixed gas of sulfur hexafluoride and nitrogen is adopted for arc extinguishing, the sulfur hexafluoride gas has strong electronegativity, so that free electrons in electric arcs are efficiently adsorbed, the nitrogen serves as buffer gas, the decomposition temperature of the sulfur hexafluoride is reduced, the thermal stability is improved, and the balance of arc extinguishing efficiency and environmental protection performance is achieved; the problem of arc reignition easily occurring in traditional air arc extinguishing in an outdoor humid environment is solved.

A method of analyzing ions comprising generating ions from a sample in an ion source, delivering them into a vacuum region of a vacuum enclosure comprising an ion mobility analyser having an ion drift region formed between opposing electrodes defining an analytical gap. The ions emerge from the ion inlet as a supersonic jet of a buffer gas within which the ions are entrained to enter the drift region and, e.g., prior to mass spectral analysis of the ions in a downstream vacuum region, conducting differential ion mobility analysis of the ions in the first vacuum region. Prior to conducting differential ion mobility analysis (e.g., and mass spectral analysis) according of the ion, the method comprisesa) changing a rate of flow of gas into or out of the vacuum region;b) measuring a gas pressure in the vacuum region and repeating steps a) and b) until a target gas pressure value is achieved;c) measuring a velocity of gas flow along the drift region and repeating steps a) to c) until the measured gas velocity value has achieved a pre-set target gas velocity value and subsequently conducting said differential ion mobility analysis and said mass spectral analysis according to said target gas pressure value and said target gas velocity value.

The invention belongs to the technical field of alkali metal lasers, and relates to a cross-flow steam pool for a rapid-heating anti-deposition alkali metal laser, which comprises a stainless steel alkali metal steam pool cavity (1), a glass window (2) for the alkali metal steam pool, a cross-flow fan (3) for the alkali metal steam pool, a buffer gas injection port (4), an alkali metal medium injection port (5) and a high-thermal-conductivity heat dissipation heat sink (6), the cross flow fan (3) for the alkali metal steam pool is arranged in the center of the stainless steel alkali metal steam pool cavity (1); the glass window (2) for the alkali metal steam pool is eccentrically arranged on the stainless steel alkali metal steam pool cavity (1); a buffer gas injection port (4) is formed in the end face of one side of the stainless steel alkali metal steam pool cavity (1), and an alkali metal medium injection port (5) and a high-heat-conductivity heat dissipation heat sink (6) are arranged on the peripheral wall of the stainless steel alkali metal steam pool cavity (1). The high-heat-conductivity heat dissipation heat sink is introduced to the stainless steel shell of the steam pool, the heating / cooling efficiency of the steam pool is improved, the window attachment probability of an alkali metal medium is reduced, and the working stability of the laser is improved.

The utility model discloses a vacuum buffer tank for a Roots vacuum unit, which relates to the technical field of vacuum buffer tanks and comprises a tank body, a cyclone separator and a buffer gas tank. Flow guide fan blades with holes are arranged in the tank body, a smooth inclined baffle is installed in the tank body, a floating ball liquid level meter and an electric ball valve are installed at the bottom of the tank body, an air inlet is formed in the left side of the cyclone separator, an air outlet is formed in the right side of the cyclone separator, and an ash hopper is installed below the cyclone separator. Under the combined action of a motor, a bevel gear set, a belt transmission device and a straight rod, airflow can be driven by a spiral fan blade to be guided to a gaseous buffer layer from an air inlet, then is driven by rotation of a fan to be guided into a buffer gas tank from the gaseous buffer layer, and is exhausted from an air outlet; the gas-liquid-solid three-phase separation improves the efficiency of a vacuum system manufactured by the Roots vacuum unit, and prevents solid particles or liquid from damaging equipment.

This application relates to a differential detection device and method for rubidium isotopes in a single probe of an optically pumped magnetometer, belonging to the field of optically pumped magnetometer technology. The device includes: a laser module, a single atomic gas cell, a magnetic field modulation module, a photoelectric detection module, and a signal processing module. The laser module is used to split a tunable narrow-linewidth laser into two laser beams via a beam splitter, and then combine the two laser beams into a coaxial beam that is incident on the single atomic gas cell. The single atomic gas cell is filled with a mixture of rubidium-85 and rubidium-87 vapor and a buffer gas. The magnetic field modulation module is used to apply a static bias magnetic field and a high-frequency modulated magnetic field to the single atomic gas cell, causing the rubidium isotopes to undergo Zeeman level splitting. The photoelectric detection module is used to collect the light intensity signals corresponding to the two laser beams emitted from the single atomic gas cell. The signal processing module is used to receive the electrical signal converted by the photoelectric detection module, perform differential processing based on the Zeeman resonance signal, and obtain the corrected magnetic field measurement value.

The utility model discloses a gas purging mechanism with a noise reduction function, which comprises a gas supply device, one end of the gas supply device is connected with a purging device, and the other end of the gas supply device is connected with a gas supply device; the noise reduction device is arranged on the blowing device, the noise reduction device comprises an elastic buffer layer, a sound absorption unit, a noise reduction unit and a sound insulation unit, the elastic buffer layer and the sound absorption unit are arranged on the inner side of the blowing device, and the noise reduction unit and the sound insulation unit are arranged on the outer side of the blowing device; and the control device is arranged on the air supply device and is electrically connected with the air supply device and the air supply device. The elastic buffer layer can buffer vibration noise generated by gas impact, the sound absorption unit can absorb part of noise energy, the silencing unit can further eliminate noise of specific frequency, the sound insulation unit can prevent the noise from spreading outwards, and an effective noise reduction barrier is formed.

An adaptive bidirectional filtration device for the buffer gas of a pressure reducing valve in a liquid rocket engine, belonging to the field of mechanical technology, includes two parallel pathways with opposite directions. Each pathway includes: an internal flow channel within the housing, with positioning, sealing, and limiting structures and connecting threads; a pressure cap flange fastened to one end of the housing by fastening screws; a flow-directing core located within the housing cavity; two ends of a spring pressing against the inner wall of the housing and the flow-directing core respectively, realizing the axial movement function of the flow-directing core; a filter element located within the housing cavity, with a through hole in its body and a filter screen attached to its surface; a media flow gap between the filter element and the inner wall of the housing; the large end of the filter element connected to the inner wall of the housing via its circumferential external thread; an interface nut connected to the housing via its internal thread; the interface nut having an external threaded interface, realizing the bidirectional filtration function of the gas storage buffer container, preventing foreign matter, simplifying the process flow, and improving experimental efficiency.

The application provides a front ring gas supply device for an ion thruster discharge chamber, comprising a gas supply ring groove and a gas supply ring cover, the gas supply ring groove and the gas supply ring cover cooperate to form a cavity, the cavity comprises a first cavity and a second cavity, a plurality of through holes are arranged on the gas supply ring cover, the first cavity and the second cavity are communicated through the through holes, the first cavity is communicated with a gas supply pipeline, and the second cavity is communicated with a discharge chamber cavity. By adopting the two-stage cavity buffer gas supply mode, the distribution of the working gas in the ion thruster discharge chamber is more uniform, the spatial uniformity of the plasma density in the ion thruster is improved, and then the flatness of the extracted ion beam is improved, which is beneficial to prolonging the service life of the ion thruster; by adopting the oblique gas injection mode, the axial velocity of the gas is reduced, the residence time of the working gas in the ion thruster discharge chamber is prolonged, and the working gas utilization rate of the ion thruster is improved.

A high-sensitivity high-voltage sensor manufacturing process, by setting a silicon island film structure at the back cavity of the pressure sensor, so that the pressure sensitive element is located in the position with large stress, the sensitivity of the sensor is improved; At the same time, a hollow structure is made on the silicon island film structure, when the high-speed gas impacts the hollow structure, the impact force of the micro-deformation buffer gas based on the hollow structure is based on the impact force of the micro-deformation buffer gas based on the hollow structure, but it will not affect the gas through the hollow layer, effectively protect the pressure sensitive film layer of the pressure sensor, improve the service life of the pressure sensor, ensure that the silicon island film structure can withstand more pressure. Through the cooperation of the silicon island film structure and the hollow structure, the sensitivity and pressure resistance of the pressure sensor are improved based on the lower cost, and the sensor can be applied to high pressure environment.

The application discloses high-strength non-magnetic drill collar, belongs to the technical field of oil drilling drilling tools, including: drill collar rod, one end of the drill collar rod is provided with a buffer head; drill collar head, the drill collar head is threadedly connected on one side of the buffer head, a T-shaped buffer groove is arranged in the buffer head, and a buffer disc spring is arranged in the T-shaped buffer groove; a connecting end is arranged on one side of the buffer head; a threaded connection groove is arranged on the inner circular wall surface of the drill collar rod; by arranging the buffer disc spring, injecting non-magnetic inert gas into the T-shaped buffer groove through the gas injection nozzle on the outside of the drill collar head, and buffering through the buffer disc spring and the buffer gas, the high-strength non-magnetic drill collar can absorb large impact load and high-frequency small impact load, effectively reduce the damage of impact stress to the drill collar rod, the buffer head and the connecting position, avoid the deformation of the drill collar body and the connection failure, and improve the applicability of the drill collar in deep high-impact drilling scenes.

The application discloses a chip atomic clock physical light path low-power temperature control system and method, and belongs to the technical field of atomic clock temperature control. The system is based on an LCC base, and comprises a PCB heat resistance network component, a reverse-docking ceramic heating sheet, a temperature feedback module, a copper cesium bubble support, an aluminum nitride heat conduction plate and optical components. The PCB is in a suspended cantilever shape to form an elongated heat conduction path, the heating sheet is provided with a serpentine trace, and heat conduction adopts a double-path parallel structure. The method optimizes structure parameters by constructing a heat-structure collaborative finite element simulation model, increases heat resistance and reduces power consumption based on the Fourier heat conduction law and a heat resistance network model, maintains the laser at 70 DEG C plus or minus 10 DEG C and the cesium bubble support at greater than or equal to 45 DEG C in combination with temperature control closed loop, and realizes optical optimization through polarization adjustment, buffer gas filling and magnetic shielding. The application improves mechanical strength and thermal stability, the total power consumption of the physical light path is 33 mW under vacuum, and the application has low power consumption, high reliability and easy production, and is suitable for portable low-consumption scenes such as satellite navigation.

This invention discloses a high color rendering index (Ra) and long lifespan magnetic ring-coupled plasma light source and its preparation method. The light source is an electrodeless source, comprising a bulb shell, an inorganic ceramic protective layer, a luminescent filler encapsulated inside the bulb shell, a mixed buffer gas, and a magnetic ring coupler fitted outside the bulb shell. The luminescent filler contains sulfur (S), selenium (Se), rare earth triiodine compounds, alkali metal bromine compounds, and alkali metal iodine compounds. The mixed buffer gas is a mixture of argon (Ar) and krypton (Kr) or argon (Ar) and xenon (Xe). The preparation method includes five steps: bulb shell pretreatment, inorganic ceramic protective layer preparation, luminescent filler filling, vacuuming and gas filling, and fusion sealing. This invention achieves ultra-high color rendering indexes (Ra>95, R9>90) by optimizing the luminescent formula and structural design. It contains no toxic substances and meets environmental standards, solving the technical pain points of poor color rendering, short lifespan, and insufficient environmental friendliness of traditional plasma light sources.