205 results about "Buffer gas" patented technology

The invention relates to a system and method for improving the transient bandwidth of a Rydberg atomic microwave sensor, and the system comprises two lasers which are respectively used for generating detection light and coupling light; the detection light and the coupling light pass through a half-wave plate and are reflected by a polarization splitting prism to obtain first vertical polarized light, and the light transmitted through the polarization splitting prism sequentially passes through a reflector and a half-wave plate to be adjusted into second vertical polarized light; the two paths of detection light and coupling light are respectively propagated in the two rubidium atom steam pools in an opposite and coincident manner; the detection light passing through the reference rubidium atom steam pool and the polarization splitting prism and the detection light passing through the rubidium atom steam pool filled with the buffer gas and the semi-transparent and semi-reflective mirror are received by the photoelectric detector; signal microwaves and local microwaves are radiated to the two rubidium atom steam pools through the power divider and the microwave horn antenna respectively, and after a microwave electric field is applied, the intensity of beat frequency signals generated by interference of the signal microwaves and the local microwaves is measured through the change of the light intensity of detection light near EIT resonance.

A lithium battery detection device based on BB optical pump magnetic imaging comprises a magnetic shielding cylinder and a substrate arranged in the magnetic shielding cylinder, and a laser, an optical lens system, an atomic gas chamber system, an array lens and an array photoelectric detector are sequentially arranged on the working face of the substrate from left to right; the atomic gas chamber system contains alkali metal atoms and buffer gas; a non-magnetic objective table for placing a lithium battery to be tested is arranged above the atomic gas chamber; according to the device, the array lens is adopted to split and focus a single beam of detection laser into small light spots which are respectively irradiated on different photoelectric detectors, and magnetic field information of a plurality of space point locations is detected at one time, so that the consistency and imaging quality of a subsystem are improved, and the system cost is saved.

The invention provides an air pressure regulation and control device, a cold air micro-propulsion system and a satellite, and relates to the technical field of cold air micro-propulsion. The air pressure regulation and control device comprises a high-pressure valve, a two-stage pressure reducing valve, a precise pressure regulating valve, a buffer gas cylinder and a pressure sensor; one end of the high-pressure valve is connected with the 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 precise pressure regulating valve is provided with a first connector, a second connector, a third connector and a fourth connector, the first connector is connected with the two-stage pressure reducing valve through a second pipeline, the second connector is connected with the pressure sensor through a third pipeline, the third connector is connected with the buffer gas cylinder through a fourth pipeline, and the fourth connector is connected with the thruster. Compared with the prior art, the air pressure regulation and control device has the advantages that the mode of combining two-stage pressure reduction, air capacity buffering and air pressure closed-loop precise regulation and control is adopted, stable and low-noise air can be supplied to the thruster, and therefore high-stability and low-noise thrust output is achieved.

The invention provides a helium liquefaction section pressure-stabilizing and flow-stabilizing gas inlet system suitable for a gas field, and particularly relates to the technical field of low-temperature refrigeration. The helium liquefaction section pressure-stabilizing and flow-stabilizing gas inlet system suitable for the gas field is connected with a first valve through the outlet end of a first buffer tank; a first branch at the outlet end of the first valve is sequentially connected with the second valve, the first electric control valve, the first one-way valve and the third valve and connected with the first inlet end of the cold box, and the two ends of the fourth valve are connected to the inlet end of the second valve and the outlet end of the third valve respectively to form a high-pressure air inlet branch. A second branch at the outlet end of the first valve is sequentially connected with the fifth valve and the second inlet end of the second buffer tank to form a buffer gas inlet branch, the two gas inlet branches can improve the stability of the pressure-stabilizing and flow-stabilizing gas inlet system of the helium liquefaction section, and gas pressure and flow fluctuation can be well controlled.

A hybrid inductively coupled plasma mass spectrometer (ICP-MS) system is disclosed for simultaneous elemental and molecular analysis in positive and negative polarities. It includes an ICP torch that generates plasma with a buffer gas, producing both positively and negatively charged ions from a sample. Positioned between the sampler and skimmer, an insert with a defined geometry forms a reaction chamber. Various embodiments feature multiple apertures for pressure control, a rotatable disk for aperture regulation, a slider gate for pressure adjustment, a circular gate with adjustable radial apertures, and an inlet for introducing gases, reagents, dopants, or analytes. These components enable precise pressure modulation, optimizing performance for dual-polarity mass spectrometry. The system enhances analytical flexibility by facilitating controlled ion reactions, improving sensitivity and specificity for both elemental and molecular applications. This innovation expands ICP-MS functionality, supporting diverse scientific and industrial applications requiring high-precision mass analysis.

The invention relates to the field of quantum measurement, and provides a CPT magnetometer magnetic measurement signal-to-noise ratio improving method and device based on a differential EIT-EIA signal. The CPT magnetometer solves the problem that a traditional CPT magnetometer is low in magnetic measurement signal-to-noise ratio due to the influence of environment temperature noise, laser stability and atomic gas chamber buffer gas. According to the main scheme, the CPT magnetometer comprises a laser generation module, a reference correction module, a differential detection module, a non-magnetic heating module and a signal processing module. The laser generation module generates reference / measurement double beams through the laser and the polarization regulation and control assembly; the reference correction module performs polarization conversion and optical path regulation and control on the reference light; the differential detection module divides the measurement light into two paths by adopting polarization beam splitting, the first path is subjected to polarization state conversion through an interference light path after frequency modulation, the second path is converted into circularly polarized light after optical fiber transmission, the two paths of light are coupled and then enter an atomic gas chamber for interaction, and differential detection is realized through a polarization beam splitting detector; and the non-magnetic heating module accurately controls the temperature of the air chamber by using a non-contact photo-thermal conversion technology.

A seal includes a mating ring that rotates relative to a carbon primary ring at a seal interface. A buffer gas is provided into the seal and passes from the back of the primary ring to the seal interface though holes drilled in the primary ring. The seal can be used as a separation seal or in combination with another seal.

The utility model discloses a water hammer eliminator, which belongs to the technical field of pipeline protection accessories, and adopts the technical scheme that the water hammer eliminator comprises a sleeve, a joint, a sealing element and a piston, the sleeve is provided with a pipe orifice and a sealing part, an inner cavity is arranged between the pipe orifice and the sealing part, the joint is connected with the pipe orifice, and the joint is provided with a water inlet runner communicated with the inner cavity; the sealing piece is arranged in the inner cavity and seals the sealing part, the piston is arranged in the inner cavity in a sliding mode, and buffer gas is filled between the sealing piece and the piston. The buffer gas filled in the inner cavity is sealed through the sealing piece and the piston, so that the buffer gas in the inner cavity can be prevented from slowly leaking from the sealing part, and the air tightness of the sleeve is effectively ensured; the water hammer arrestor is convenient to assemble and suitable for most water hammer arresters, the original structure and production process of the casing pipe are not damaged, and upgrading or further research and development of the casing pipe which is produced and stored are not affected.

The invention discloses an oxygen carrier abrasion evaluation device and method. The device comprises a computer, a PLC, a weighing sensor, a differential pressure sensor, a buffer gas chamber, an infrared heating furnace, a compressed gas cylinder, a water storage bottle, a sampling pipe, a tail gas collecting pipe, a filter, a micro gas pump and a reactor. Wherein the computer, the weighing sensor, the differential pressure sensor and the infrared heating furnace are all connected with the PLC, a reactor is arranged in the infrared heating furnace, the weighing sensor is provided with the scale, the scale is provided with the buffer gas chamber, the buffer gas chamber is communicated with the reactor, and the compressed gas cylinder and the water storage cylinder are both connected with the buffer gas chamber; the micro air pump is connected with the filter which is connected with the tail gas collecting pipe. Under the conditions of a mechanical wear experiment and a thermal stress wear experiment, the wear performance of the oxygen carrier is evaluated by drawing a thermogravimetric curve and calculating the wear rate by using a thermogravimetric signal transmitted by the device, which indicates that the oxygen carrier has good chemical looping reaction wear resistance, and the method provides a scientific basis for optimizing the design and operation of a chemical looping reaction system.

The invention discloses a pressure resistance detection device for a handheld satellite communicator display module, and particularly relates to the technical field of pressure detection, the pressure resistance detection device comprises a main body, the main body comprises a display screen, a driving part comprises a guide column, the guide column is slidably connected with a moving table, the driving part comprises a support frame, and the support frame is provided with a driving cylinder. The lower end of the driving air cylinder is fixedly connected with the upper end of the moving table through a pressure sensor, the pressure sensor is electrically connected with the display screen, the measuring part comprises a pressure rod, the pressure rod is slidably connected with the moving table, the measuring part comprises a contact air storage part, the upper end of the contact air storage part is fixedly connected with the moving table, and the lower end of the contact air storage part is communicated with a buffer air storage part; the lower end of the pressure rod is wrapped by the buffer gas storage part, the adjusting part comprises a base fixedly connected with the main body, a lifting block is arranged in the base, and a display module clamp is hinged to the upper end of the lifting block through a spherical hinge rod.

The present invention relates to the technical field of oil well production, and in particular to an adaptive downhole dynamic liquid level real-time monitoring device, which includes a high-pressure nitrogen tank, which is connected to a low-pressure buffer gas tank and a pressure reducing valve is connected in series between the two; a compression tube, which is connected to the low-pressure buffer gas tank, and a one-way valve is connected in series between the two for allowing the gas in the low-pressure buffer gas tank to flow unidirectionally into the compression tube, and a compression member for changing the internal volume of the compression tube is provided at the compression tube; a release tube, one end of which is connected to the compression tube, and the other end is connected to a casing for releasing high-pressure gas to the downhole, and a control member for controlling the connection or closure of the release tube and the compression tube is provided between the release tube and the compression tube, and an air pressure sensor and an acoustic wave sensor are provided in the release tube. The present invention can solve the technical problems of potential safety hazards and unstable and unadjustable release of high-pressure gas from the sound source during the test process in the prior art.

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 discloses a reflection type hollow-core optical fiber atomic gas chamber which comprises a single-mode optical fiber, a hollow-core optical fiber, a lens optical fiber, an optical fiber grating and a quartz capillary tube. Wherein the single-mode optical fiber is connected with the hollow-core optical fiber; the lens fiber is connected with the fiber bragg grating; the hollow-core optical fiber, the lens optical fiber and the optical fiber grating are all located in the quartz capillary tube; the quartz capillary tube is filled with alkali metal atoms and buffer gas. According to the invention, difficulties in assembly of a reflective hollow-core optical fiber gas chamber and filling of alkali metal atoms are overcome, and the application requirements of the field of high-spatial-resolution weak magnetic measurement on miniaturized and array-integrated atomic gas chamber probes are met.

The invention relates to an environment-friendly insulating gas multi-dimensional performance regulation and control method based on buffer gas addition. The method comprises the following steps: S1, acquiring multi-dimensional performance indexes of environment-friendly insulating gas; the multi-dimensional performance indexes comprise an insulating property index, a chemical stability index, a harmful product inhibition index, a biological safety index and a gas-solid compatibility index; s2, performing data processing on the multi-dimensional performance index to obtain a multi-dimensional performance index score; and S3, according to the multi-dimensional performance index score, obtaining a multi-dimensional performance total score through a weighted scoring method, determining the optimal filling amount of the second buffer gas according to the multi-dimensional performance total score, and regulating and controlling the multi-dimensional performance of the environment-friendly insulating gas according to the optimal filling amount. According to the method, the multi-dimensional performance indexes are analyzed and converted into the multi-dimensional performance index scores, the total multi-dimensional performance score is finally obtained, the environment-friendly insulating gas with the optimal multi-dimensional performance can be conveniently and visually determined, multi-dimensional performance regulation and control are achieved, and the method is simple and reliable.

The invention relates to the technical field of deep sea seabed detection devices, and particularly discloses seabed sampler penetration depth measuring equipment which comprises a sampler body, a shell and a plurality of pressure sensitive elements. The sampler main body is used for collecting a seabed sediment sample, and the shell wraps the sampler main body; the pressure sensitive elements are respectively arranged on the shell and are used for sensing the change of the pressure borne by the seabed sampler in real time; the pressure sensitive element comprises a sensing diaphragm, a strain resistor and a packaging shell; the sensing diaphragm is located on the outermost layer and directly makes contact with the external environment, the edge of the sensing diaphragm and the shell are sealed, and buffer gas is reserved between the sensing diaphragm and the shell. The strain resistor is fixed between the induction diaphragm shells, and a lug boss is formed on the induction diaphragm; when the sensing diaphragm deforms, the shape and the resistance value of the strain resistor change along with the deformation of the sensing diaphragm. By adopting the technical scheme of the invention, the depth of inserting the sediment can be obtained, and the resistance of the sediment in the inserting process can be accurately obtained.

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 invention provides a low-temperature molecular beam device, which relates to the field of low-temperature physical chemistry and comprises a refrigeration assembly, a primary shielding cover and a buffer cooling structure. The refrigeration assembly comprises a first-stage cold head and a second-stage cold head; the first-stage shielding cover is provided with a first-stage shielding inner cavity; the first-stage cold head is connected with the first-stage shielding cover and is used for cooling the first-stage shielding cover; the second-stage cold head is accommodated in the first-stage shielding inner cavity; the buffer cooling structure is connected to the second-stage cold head and is accommodated in the first-stage shielding inner cavity; the buffer cooling structure is provided with a buffer cooling inner cavity, and the buffer cooling inner cavity is used for introducing buffer gas and target molecules. According to the low-temperature molecular beam device in the embodiment of the invention, the temperature of the buffer gas can be further reduced.

The invention discloses an online detection method for a gas densitometer, which relates to the technical field of gas densitometer detection and comprises the following steps of: for density data which are determined as data with inconsistent structures, combining the density data with temperature data and pressure data in a corresponding time period; identifying whether a detection time period corresponding to the density data is in a buffer air mass intervention state or not; under the condition of a buffer gas mass intervention state, constructing a detection point based on temperature data, pressure data and density data collected by a gas densimeter in real time, comparing the detection point with a representative state space constructed based on a historical stable state, and determining an attribute mismatching degree of the density data; and dividing the density data into three grades of representativeness, representativeness doubt and non-representativeness according to the determined attribute mismatch degree. According to the method, the problem that the density data distortion cannot be identified due to buffer air mass intervention is solved, and density data representativeness intelligent discrimination and differential application are realized.

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.

The present invention discloses a seasonal compressed air energy storage system, comprising a compressor unit, a power mechanism, a turbine unit, a heat exchange mechanism, and an underground water-bearing or saline layer. The compressor unit and the power mechanism are detachably connected, and the power mechanism and the turbine unit are detachably connected. The underground water-bearing or saline layer is covered with a dense cover layer, and the underground water-bearing or saline layer is connected to a group of working wells extending to the ground. An air inlet pipe is provided between the compressor unit and the group of working wells, and an air inlet valve is provided on the air inlet pipe. An air outlet pipe is provided between the turbine unit and the group of working wells, and an air outlet valve is provided on the air outlet pipe. Both the air inlet pipe and the air outlet pipe are passed through the heat exchange mechanism. Also disclosed is a seasonal compressed air energy storage method, comprising the steps of: injecting buffer gas; energy storage; and energy release. This seasonal compressed air energy storage system and method have a large energy storage scale, a long storage period, low development cost, a small footprint, low environmental impact, high energy efficiency, and can be deployed across seasons.

The invention relates to a multi-detector high-capacity ion trap quality analysis system which is arranged in a negative pressure sealed cavity containing buffer gas, the negative pressure sealed cavity is provided with an ion inlet, and the system comprises a first ion screening assembly communicated with the ion inlet, the first ion screening assembly is connected with one end of an ion dispersion assembly, and the other end of the ion dispersion assembly is connected with a second ion screening assembly; the other end of the ion dispersion assembly is connected with the second ion screening assembly, and the second ion screening assembly is provided with an ion output port. The ion trap mass analyzer is divided into the first ion screening assembly, the ion dispersion assembly and the second ion screening assembly, the overall capacity of the ion trap mass analyzer is improved, the ion detection efficiency and accuracy are improved through cooperation of multiple groups of detectors and the electrode stem slit, and the detection sensitivity, the analysis speed and the flux are further improved. When the ion dispersion assembly and the second ion screening assembly work, the first ion screening assembly can continuously drive ions to be analyzed to enter.

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.

The utility model discloses an oxygen generator capable of being automatically started and stopped. The oxygen generator comprises an air compressor, an efficient degreaser, a refrigerated dryer, a filter, a buffer gas storage tank, oxygen generation equipment, a dust fine filter, an oxygen buffer tank and a gas storage tank which are connected in sequence, the oxygen generating device is characterized in that a sensing piece for sensing the pressure in the air storage tank and a controller connected with the sensing piece and the oxygen generating device are mounted on the air storage tank; the air storage tank is composed of a plurality of tank bodies and pneumatic separation seats installed among the tank bodies. According to the utility model, the pressure of the gas in the gas storage tank is sensed in real time by using the sensing piece, a signal is sent to the controller, and the controller controls the oxygen production equipment to work and stop according to the set pressure, so that the automatic production is realized, the production efficiency is improved, and the labor intensity of workers is reduced; the tank bodies are separated or communicated through the pneumatic separation base, the space for storing gas in the gas storage tank is adjusted, meanwhile, a plurality of oxygen production devices can be connected at the same time to be used, and the occupied area of the devices is reduced.

The invention discloses a universal water-spraying noise-reducing air supply system, and relates to the technical field of rocket launching, the universal water-spraying noise-reducing air supply system comprises an air distribution table, a pipeline system, an air collecting pipe and a buffer air tank, and the air distribution table is used for inflating the air collecting pipe and the buffer air tank; the pipeline system is communicated with the gas supply end of the gas distribution table, and the pipeline system is further communicated with a gas collecting pipe and a buffer gas tank; the gas collecting pipe is used for supplying control gas to the pneumatic valve on the water spraying pipeline, and the pneumatic valve is controlled through the control gas; and the buffer gas tank is positioned on a path between the gas supply end of the gas distribution table and the gas inlet end of the gas collection pipe in the pipeline system. According to the universal water-spraying noise-reducing air supply system, the buffer air tank is introduced to realize dynamic balance supplement during the quick action period of the pneumatic valve, so that the response consistency of the pneumatic valve is effectively improved.

The present invention discloses a method for manufacturing an atomic gas chamber, the method comprising: forming a first bonding layer having a first through hole on a first sapphire substrate, and forming a second bonding layer having a second through hole on a second sapphire substrate, the first through hole and the second through hole corresponding to each other; placing a filling material in the first through hole or the second through hole; bonding the first bonding layer and the second bonding layer. The present invention also discloses an atomic gas chamber manufactured by the above manufacturing method. The present invention solves the problem of consumption reaction between the material of the atomic gas chamber and the alkali metal and high leakage of buffer gas, which leads to a reduction in the service life of the atomic gas chamber.

The invention relates to the field of power supply equipment boxes, in particular to a 5G base station power supply equipment box. The lifting device comprises a supporting seat and a lifting outer box which are connected through a lifting driving piece. The fixed cover box is positioned on the supporting seat; the top seat is rotationally arranged on the lifting outer box; the base is rotationally arranged on the supporting seat; the mounting piece I is arranged on the base; the telescopic supporting piece is located between the top base and the bottom base. A plurality of groups of mounting pieces II are arranged on the telescopic supporting piece; the buffer assembly is located on the fixed cover box and comprises a lower telescopic ventilation piece matched with the bottom of the lifting outer box, an upper telescopic ventilation piece matched with the top of the lifting outer box and a buffer piece located in the fixed cover box. A movable shell is formed by a fixed cover box and a vertically lifting outer box outside the fixed cover box. Through lifting of the lifting outer box, opening and closing of the inner space can be controlled, buffering gas and cooling gas flow can be generated, space arrangement is reasonable, safety and heat dissipation performance are good, and daily work requirements of the 5G base station are met.

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.