567 results about "Microwave power" patented technology

The invention relates to the field of food processing, and discloses a pet food hot air drying processing technique which comprises the following steps: heating raw materials by using microwaves, and exciting and evaporating moisture in the raw materials by radiating the raw materials on a conveying belt through the microwaves; moisture on the surface of the food is removed through hot air drying; microwave heating and hot air drying processes are carried out synchronously, and processing data are regulated and controlled in real time through an intelligent control system. The microwave heating is realized through a frequency-adjustable microwave emitter, and the microwave frequency adjustment range of the frequency-adjustable microwave emitter is 2400 MHz to 2500 MHz. The scheme of combining microwave and hot air drying technologies is adopted, microwave is used for heating internal moisture, a hot air system is matched for removing surface moisture, microwave power and hot air temperature are adjusted in real time, the uniform drying effect is achieved, surface hardening is effectively avoided, it is ensured that moisture inside and outside food is uniformly released, and drying quality and efficiency are improved.

The invention discloses a composite coated graphite negative electrode material, a preparation method thereof and a lithium ion solid-state battery, and belongs to the technical field of lithium ion solid-state batteries, the composite coated graphite negative electrode material comprises a graphite matrix and a composite coating layer, and the composite coating layer comprises an inner layer amorphous lithium chloride and an outer layer nanocrystalline LiF / Li3N composite phase. Mixing graphite, lithium chloride containing crystal water and ammonium fluoride to obtain a mixed material; placing the mixed material in a microwave reaction cavity, heating the mixed material to 600-700 DEG C at the microwave power of 800-1200 W in an H2 / Ar mixed atmosphere, and keeping the temperature for 20-60 minutes; and cooling the sintered mixed material, grinding, and sieving with a 100-300 mesh sieve to obtain the composite coated graphite negative electrode material with a coating layer thickness of 10-50 nm. The invention provides an innovative amorphous LiCl / nanocrystalline LiF-Li3N gradient coating layer design, the performance of the lithium ion battery is remarkably improved by optimizing an ion migration path, enhancing the interface stability and reducing the process cost, and a new engineering way is provided for realizing high magnification and long cycle performance of the sulfide all-solid-state battery.

The invention provides a method for growing an oversized diamond polycrystalline film. The method comprises the following steps: S1, cleaning and drying a monocrystalline silicon wafer at room temperature; s2, carrying out pretreatment seed crystal on the monocrystalline silicon wafer, covering a diamond nanocrystalline layer on the silicon surface, and putting the monocrystalline silicon wafer into MPCVD (Microwave Plasma Chemical Vapor Deposition) equipment; s3, the cavity is vacuumized, then hydrogen is introduced for purging, and then vacuumizing is conducted again; then hydrogen is introduced, the air pressure is regulated and controlled to be 5-8 torr, and starting is started to ignite the plasma; s4, the microwave power is increased to 70 KW to 75 KW at the speed of 4.5 KW / min to 5.5 KW / min, the air pressure is increased to 165 torr to 180 torr at the speed of 10 torr / min to 30 torr / min, and the temperature is increased to 900 DEG C to 950 DEG C at the speed of 60 DEG C / min; s5, introducing growth gas, wherein the flow rate of hydrogen is 5000-6000 sccm, the flow rate of methane is 100-150 sccm, the flow rate of oxygen is 5-8 sccm, the flow rate of nitrogen is 1-2 sccm, and the flow rate of argon is 800-1000 sccm; and S6, after the growth is finished, cooling at a rate of 30 DEG C / min, and introducing nitrogen into the cavity for vacuum breaking until the temperature is reduced to room temperature, so as to obtain the oversized diamond polycrystalline film. The size of the oversized diamond polycrystalline film reaches 12 inches.

The invention discloses a microwave power detection system and a multipath microwave power detection consistency control method, and the method comprises the steps: carrying out the pi-attenuation test of a plurality of resistance value combinations through a pi-attenuation test circuit unit in the microwave power detection system, so as to determine the pi-attenuation initial values of a plurality of branch detection modules; the method comprises the following steps: acquiring a pi-decay initial value, performing multi-path microwave power detection according to the pi-decay initial value, selecting a branch detection module with microwave power test data closest to an average value of multi-path microwave power test data as a reference circuit, and adjusting other branch detection modules on the basis to complete consistency setting of multi-path microwave power detection. By adopting the multi-path microwave power detection method and device, the difference between the branches in the multi-path microwave power detection process can be effectively eliminated, the consistency of multi-path microwave power detection can be better controlled, and the precision and reliability of multi-path microwave power detection are improved.

The invention discloses a deep arsenic removal device for phosphoric acid and an arsenic removal process thereof, and relates to the technical field of efficient arsenic removal in phosphoric acid, the deep arsenic removal device comprises an automatic feeding continuous arsenic removal reactor, under the cooperation of a temperature control heating assembly, an arsenic biosensor, a material removal driving motor, a rotating rod, a drying rake blade and a heat conduction rod, the position of a microwave heating source is adjusted, and the arsenic removal efficiency is improved. The microwave heating is more accurate through the intelligent control of the microwave power, and the microwave heating is combined with the internal drying rake blade stirring system, so that the heating efficiency of the material is improved, the uniform mixing of the material is promoted, the temperature change of different areas in the automatic feeding continuous arsenic removal reactor can be adapted, and the continuous arsenic removal effect is improved. According to the technical scheme, the uniformity and controllability of reaction conditions are guaranteed, the heat conduction rods arranged in an array mode can quickly respond to temperature changes, uniform distribution of heat is achieved, local overheating is avoided, meanwhile, the heat conduction path can be flexibly adjusted according to requirements, and the temperature uniformity in the automatic feeding continuous arsenic removal reactor is guaranteed.

The invention relates to an integral microwave-assisted additive manufacturing device and method. The integral microwave-assisted additive manufacturing device comprises a microwave high-temperature cavity, a microwave leakage-proof outer cavity, a microwave element, a high-temperature thermocouple, a high-temperature supporting mechanism and a servo driving mechanism. The microwave auxiliary device is fixed to the supporting frame, and the servo driving mechanism drives the forming base plate to move synchronously through the high-temperature supporting mechanism. According to the device and the method, an additive manufacturing component can autonomously absorb microwaves in a forming high-temperature state, microwave energy is converted into heat energy, rapid temperature rising of the material is achieved, meanwhile, under the synergistic effect of microwave coupling external heat sources, synchronous preheating and slow cooling inside and outside the material are achieved, thermal stress in the forming process is reduced, and therefore material cracking is effectively restrained. The heating temperature and the heating rate are regulated and controlled by controlling the microwave power, so that on-demand preparation of the microstructure of the material is realized; the microwave plasma heat effect and the electric field enhancement effect in the microwave heating process can promote densification of a formed component, and the overall performance of the material is remarkably improved.

The invention relates to the technical field of industrial control, and discloses a real-time dynamic tuning system for a microwave drying process, which is characterized in that temperature distribution, microwave power intensity, humidity gradient and material deformation parameters in a drying cavity are acquired in real time, and time-space alignment and noise suppression are carried out on data of a multi-source sensor based on a Kalman filtering algorithm; generating a drying state matrix, generating a three-dimensional regulation and control instruction containing microwave emission frequency, power partition and drying time according to the drying state matrix by adopting a mixed algorithm of model predictive control and fuzzy logic, and taking the deviation between a final moisture content detection value of the material and a model predictive value as a loss function through an online error back propagation model. The weight coefficient of the microwave-thermal-mass transfer coupling model is dynamically corrected, the microwave energy ratio is optimized based on the improved particle swarm optimization, and the three-dimensional gradient field intensity distribution matched with the material morphology is generated according to the three-dimensional regulation and control instruction, so that the efficiency of the microwave drying process during real-time dynamic regulation and optimization is improved.

The invention discloses an electron linear accelerator for radiotherapy equipment in an X-ray operation. The microwave power source sequentially passes through the circulator and the power divider and then is connected with the first coupler and the second coupler, the first coupler is connected with the first acceleration cavity to provide an independent microwave magnetic field, and the second coupler is connected with the second acceleration cavity to provide an independent microwave magnetic field. An electron gun of the electron linear accelerator is sequentially connected with the first acceleration cavity and the second acceleration cavity and then outputs electron beams; the first coupler inputs the microwave power to the first acceleration cavity, so that the first acceleration cavity optimizes the electron beam energy spectrum monochromaticity; and the second coupler inputs the microwave power into the second acceleration cavity, so that the second acceleration cavity accelerates the electron beam to required energy. According to the electron linear accelerator, the needed electron beam energy can be achieved only through the two cavities, a large amount of energy of the finally obtained electron beam is concentrated on the needed energy through the acceleration mode, and in other words, the energy spectrum monochromaticity is better.

A ray generating device and a control method thereof are provided. The ray generating device includes: an electronic beam generating device; a microwave generating device; a microwave circulator, having a power input port and at least two power output ports, the power input port being connected to the microwave generating device; a plurality of accelerating tubes respectively connected to at least two power output ports, configured to respectively receive a plurality of electronic beams, and accelerate electronic beams respectively through microwaves received from the at least two power output ports, and to respectively generate a plurality of rays having at least two different energies; and a controller, configured to perform chronological control on microwave power of the microwave generating device, and chronological control on beam loadings of the electronic beams generated by the electronic beam generating device and respectively corresponding to accelerating tubes.

The invention discloses a low-temperature vacuum microwave freeze-dried sinomenine hydrochloride preparation and a preparation method thereof in the technical field of pharmaceutical preparations, and solves the problems of long drying time, high energy consumption and poor product stability in the traditional freeze-drying technology. A vacuum microwave collaborative freeze-drying technology is adopted, microwave internal heating is achieved through a 2.45 GHz magnetron microwave generator and a rectangular waveguide tube under the conditions that the vacuum degree is 20-30 Pa and the plate layer temperature ranges from-40 DEG C to-35 DEG C, the microwave power density in the primary drying stage ranges from 0.3 W / g to 0.5 W / g, the microwave power density in the secondary drying stage ranges from 0.1 W / g to 0.3 W / g, and collaborative control over the microwave power, the vacuum degree, the temperature and the time is achieved in cooperation with a quaternary coupling precise control system. The preparation contains 50 mg of sinomenine hydrochloride, 100 mg of mannitol and 10 mg of sodium carboxymethyl cellulose grafted modified polyvinylpyrrolidone, the residual moisture is controlled to be 0.4-0.6%, the activity retention rate is 94-96%, and the drying time is shortened to 12-16 hours.

The invention relates to a carbon carrier material for microwave-assisted phosphoric acid treatment and oxygen reduction, a catalyst, a preparation method and application thereof, and the scheme is innovated by the following steps: dipping conductive carbon black (such as ketjen black ECP600JD) and 60-70wt% phosphoric acid solution according to a solid-to-liquid ratio of 1g / (15-18) mL, preheating at 100-250 DEG C in an argon atmosphere, then carrying out a reaction for 10-100 seconds under the assistance of a microwave power of 100-600 W, and carrying out vacuum drying to obtain the carbon carrier material for microwave-assisted phosphoric acid treatment and oxygen reduction. The phosphorus content of the prepared carbon carrier material is 4-6wt%, and the graphitization degree of the carbon carrier material is improved (ID / IG value is 1.15-1.20). And after the platinum-cobalt alloy is further loaded, the particle size of the nanoparticles is uniform, the potential loss is only 3 mV after 5000 accelerated attenuation tests in the proton exchange membrane fuel cell, and the power density attenuation is reduced by 58%. The method has the advantages of quick reaction, low energy consumption, high corrosion resistance and the like, and the stability of the catalyst is remarkably improved.

The invention provides a magnetic confinement microwave plasma preparation method and system for coal-based graphene quantum dots, and relates to the technical field of graphene quantum dot preparation, and the method comprises the following steps: pretreating a coal raw material, removing impurities, and crushing the coal raw material to a preset particle size; detecting the coal quality parameters of the pretreated coal raw material, wherein the coal quality parameters at least comprise the contents of C, H and O elements; the coal quality parameters are input into a QYOA algorithm to be analyzed, and adjustment parameters of microwave power and reaction gas are obtained; feeding the pretreated coal raw material into a reaction cavity, and forming a three-dimensional confinement field in the reaction cavity through a magnetic confinement device; according to the method, magnetic confinement, microwave plasma, a QYOA algorithm and ultrasonic aftertreatment are organically combined to form a synergistic effect, dissociation of carbon clusters is promoted through the synergistic effect of the magnetic confinement and the microwave plasma, the yield of the coal-based graphene quantum dots is increased to 30% or above from less than 10% of a traditional method, the production efficiency is improved, and large-scale production is facilitated.

The invention belongs to the cross technical field of artificial intelligence and environmental protection engineering, particularly relates to a denitration catalyst microwave regeneration optimization method based on machine learning, and aims to solve the problems of inaccurate energy matching, large structural damage and low efficiency of a traditional regeneration method. The method comprises the following steps: constructing a catalyst multi-dimensional feature database, establishing a microwave regeneration multi-physics field coupling simulation model, and training an integrated learning prediction model to associate input features with a regeneration effect; in the regeneration process, infrared thermal imaging, microwave reflection and gas sensing equipment are integrated, temperature field, energy absorption and tail gas data are collected in real time, and microwave power, frequency and atmosphere parameters are dynamically regulated and controlled. Accurate energy release and closed-loop intelligent regulation and control are achieved, the activity recovery rate after regeneration exceeds 92%, the specific surface area retention rate exceeds 85%, the regeneration period is shortened to one third of that of a traditional method, energy consumption is reduced by 40%, full-life-cycle intelligent management of the catalyst is supported, and economical efficiency and sustainability of environmental protection equipment are remarkably improved.

The invention discloses an automobile structure assembly gluing heat treatment method and system based on frequency conversion microwaves. The method comprises the steps that the surface of an automobile structure assembly is subjected to activating treatment through a plasma spraying technology; the method comprises the following steps: coating a to-be-glued automobile structure component with an adhesive, carrying out heat treatment on the coated automobile structure component by adopting a variable-frequency microwave generator, dynamically adjusting the microwave frequency to realize uniform heating of the interior of an adhesive layer, monitoring the temperature field distribution of the adhesive layer in real time, and dynamically adjusting the microwave power output; in the microwave heat treatment process, pressure is applied synchronously to promote discharge of bubbles in the adhesive layer and improve the compactness and mechanical property of the adhesive layer; and a gradient cooling mode is adopted for cooling the automobile structure assembly subjected to heat treatment. According to the embodiment of the invention, the bonding quality and durability of the automobile structural component can be remarkably improved through frequency adjustment, temperature monitoring, bubble removal and pressure application in the microwave heating process.

The invention discloses a food baking processing program control system and method, and relates to the technical field of food processing intelligent control, and the method comprises the steps: collecting the dielectric characteristics of a material, capturing the change dynamic state of a dielectric loss angle tangent value, and recognizing the phase change stage of the material in real time through a time domain dielectric spectrum analysis method; constructing a dual-channel heat conduction model, and dynamically identifying the regional temperature gradient of the baking equipment according to the phase change stage of the material; and based on the regional temperature gradient of the baking equipment, through a multi-parameter coupling control algorithm, calculating the microwave power adjusting quantity and the wind speed ratio adjusting quantity of the baking equipment, and generating a composite control instruction set. According to the method, the phase change stage of the material is recognized in real time through a time domain dielectric spectrum analysis method, the relevance between relaxation time distribution and a phase change characteristic spectrum is accurately analyzed through inverse Laplace transformation and a dynamic time warping algorithm, and dynamic capture of key phase change nodes such as glass transition and starch gelatinization is achieved.

The invention discloses a microwave catalysis and plasma combined waste gas treatment system and method. The system is formed by connecting a pretreatment module, a pretreatment cavity module, a main catalysis cavity module, a tail end purification module and an intelligent control module in series. The pretreatment module adopts two-stage condensation and multi-stage dust removal and is provided with a humidity particle return valve; the pretreatment cavity completes low-temperature oxidation under the cooperation of multi-frequency microwaves and a catalyst; the main catalytic cavity integrates a pulse corona-enhanced plasma discharge structure and a 2.45 / 5.80 GHz double-frequency microwave source, and cooperates with a catalyst to deeply crack VOCs. The tail end module achieves waste heat recovery and fine purification through double heat exchangers and double activated carbon adsorption, and a terminal monitors emission online through Fourier infrared. And the intelligent control module predicts and adjusts the microwave power, the discharge frequency and the valve position in real time based on a long short-term memory (LSTM) network algorithm, namely LSTM, so that the system keeps high-efficiency, low-energy-consumption and stable operation under the conditions of high humidity and multi-component VOCs (Volatile Organic Compounds).

The utility model discloses a miniaturized beam unit module, and belongs to the technical field of electron linear accelerators. A miniaturized beam unit module comprises a magnetron assembly, a microwave system, a circulator assembly, an accelerating tube assembly, a primary collimating cone assembly and a fixed bottom plate. The magnetron assembly, the microwave system, the circulator assembly, the accelerating tube assembly and the primary collimating cone assembly are fixedly mounted on the fixed bottom plate; the magnetron assembly comprises a magnetron, and the magnetron is used for generating microwaves; the accelerating tube assembly comprises an accelerating tube; the microwave system is used for connecting the magnetron and the accelerating tube and feeding microwaves generated by the magnetron into the accelerating tube; the circulator assembly comprises a circulator, a waveguide port of the circulator is higher than a waveguide port of the magnetron, the circulator is arranged in the microwave system, and the circulator is used for isolating microwave power fed back to the magnetron; the position of the magnetron is moved downwards, so that the height of the waveguide port of the magnetron is lower than that of the waveguide port of the four-end circulator, and the purpose of miniaturization of the beam unit module is achieved.

The invention discloses a preparation method of an interlayer spacing adjustable MXene material through microwave-assisted chemical etching, and belongs to the technical field of two-dimensional nano material preparation. Key parameters such as etching agent solution concentration, villiaumite ratio and microwave power are adjusted and controlled through a synergistic effect mechanism of a microwave field and chemical etching; the preparation method realizes accurate and controllable interlayer spacing preparation of the MXene material, has the advantages of high reaction speed, high etching efficiency, accurate and adjustable interlayer spacing, wide range and the like, and provides an efficient and reliable preparation method for performance optimization of the MXene material in the fields of energy storage, catalysis, separation membranes, gas sensitivity and the like.

The invention discloses a radiation structure, a quantum sensing system, a radiation assembly and a quantum sensing measurement method, and the radiation structure comprises a feed part which is suitable for sleeving the outer side of an objective lens and is covered with a microstrip line, and the microstrip line can generate a magnetic field; the coupling piece is suitable for being arranged at the top of the objective lens in the thickness direction of the radiation structure, the coupling piece comprises a first coupling piece body and a second coupling piece body, the first coupling piece body and the second coupling piece body jointly define a plurality of arc-shaped gaps arranged at intervals in the circumferential direction and jointly define a light hole, and the light hole is suitable for being arranged corresponding to the NV color center; and microwaves radiated by the coupling piece are used for exciting NV color center electron spin transition. Therefore, by arranging the feed piece on the outer side of the objective lens in a sleeving mode, the thickness of the radiation structure located between the objective lens and the bearing piece can be small (equal to or even smaller than 0.1 mm), the requirement for the freedom degree of distance adjustment between the objective lens and the bearing piece can be met, and a clear view can be found conveniently; a plurality of arc-shaped gaps which are distributed at intervals in the circumferential direction are defined by the coupling piece, and the coupling piece can form a strong alternating magnetic field under the influence of a magnetic field so as to provide microwave power meeting requirements.

According to the microwave reactor and method for recycling the three-way catalytic precious metal, through the synergistic effect of microwave radiation and the telescopic glass stirring rod, the problem that the mass transfer efficiency is low due to high viscosity of a traditional ionic liquid leaching system is solved, the precious metal leaching time is shortened, and the efficiency is improved. Meanwhile, a diamond ATR crystal infrared probe is adopted to monitor components of a reaction solution in real time, multi-parameter linkage control of microwave power, temperature and stirring rate is combined, reaction conditions are dynamically optimized, and the recovery rate of platinum, palladium and rhodium is increased. The method systematically solves the technical bottlenecks of high energy consumption, heavy pollution and low ionic liquid leaching efficiency of the traditional pyrogenic process / wet process, and provides an innovative scheme with high efficiency, low environmental load and industrial feasibility for precious metal recovery.

A method of manufacturing a current collector of an energy storage device includes the following. A substrate is provided. A modified layer is formed on the substrate using a microwave plasma chemical vapor deposition process. The modified layer includes nanographene and has a thickness of 1 nm to 500 nm. In the microwave plasma chemical vapor deposition process, a microwave frequency is 300 MHz to 300 GHz, a microwave power is 500 W to 75000 W, a temperature is 25° C. to 600° C., and a deposition time is less than 30 minutes. The microwave plasma chemical vapor deposition process includes the following. Inert gas or stable gas is passed in. Hydrocarbon gas and hydrogen are passed in. Microwaves are applied to generate plasma. The hydrocarbon gas and the hydrogen are ionized. Nanographene is formed on the substrate.

The invention provides an electric tungsten fire needle tumor ablation system, and the system comprises an image navigation module which is used for integrating CT / MRI / ultrasonic images, constructing a three-dimensional tumor model in real time, tracking a target region through electromagnetic positioning, and dynamically calibrating a needle insertion path; the insulating tungsten fire needle execution module is used for adopting a high-density tungsten alloy needle body and a multi-axis mechanical arm to control multi-angle puncture; the energy output module is used for intelligently adjusting radio frequency / microwave power and releasing energy in a pulse mode; and the temperature control feedback module is used for monitoring the temperature in real time and automatically terminating overheating energy. According to the technical scheme, accurate, safe and effective ablation of tumors is achieved.

The invention provides a superconducting diode based on superconducting quantum interference, a preparation method thereof and a quantum device. The superconducting diode provided by the invention can realize a one-way conduction function at an extremely low temperature, and has extremely low power consumption, so that basic parts of a low-temperature quantum circuit are greatly expanded. And the required external magnetic field is very small and can be provided by an external magnet and a current circuit prepared on the same chip as the device, so that the application is convenient. In addition, under low-temperature microwave irradiation, the device shows the capacity of small change along with microwave power, and it is indicated that the device also has the stable working capacity in the high-power microwave environment.

The invention discloses a regenerated slurry preparation method based on recycled ceramic casting membranes, and belongs to the technical field of ceramic slurry preparation, and the method comprises the following steps: S1, pretreatment, fine crushing and deep extraction, and supercritical CO2 fluid extraction after crushing treatment; s2, thermal degreasing and activation: step-by-step temperature control removal and surface modification step-by-step heating thermal degreasing: in the first stage, the temperature is 150-250 DEG C, and heat preservation is performed for 1-2 hours; in the second stage, the temperature is 300-400 DEG C, and heat preservation is conducted for 0.5 h; s3, a plasma surface activation process: putting the ceramic powder into low-temperature plasma treatment equipment, introducing a mixed gas of argon and oxygen as a working gas, and treating under the action of specific radio frequency or microwave power; s4, slurry reconstruction, precise formula and optimized dispersion gradient powder mixing, wherein regenerated ceramic powder and new ceramic powder are mixed; and constructing a dispersion system: adding a solvent and a composite dispersant, and carrying out dispersion ball milling.

The present invention belongs to the field of quantum microwave measurement, and specifically relates to an atomic gas chamber probe loaded with a metasurface lens, comprising an atomic gas chamber probe and a metasurface lens for microwave focusing, wherein the atomic gas chamber of the atomic gas chamber probe is placed near the focus of the metasurface lens, and the shape of the focus of the metasurface lens is designed according to the effective action area of ​​the atomic gas chamber probe. Compared with the existing atomic receiving antenna, the beneficial effect of the present invention is to use the metasurface lens to perform microwave focusing, place the atomic gas chamber of the existing atomic gas chamber probe at its focus, and use the large aperture brought by the metasurface lens to focus the plane microwaves in a specific direction to the atomic gas chamber, thereby avoiding clutter interference in directions of no interest, and enhancing its responsive microwave power density, thereby increasing the detection sensitivity of the atomic receiving antenna, and supporting the application of quantum microwave measurement systems in electronic information fields such as radar, communication, electronic countermeasures, and navigation.

The invention discloses a microwave power test method and platform and a multi-channel microwave power consistency control method. The microwave power test method comprises the following steps: firstly, adjusting the test environment temperature or the preheating time of a microwave signal source until the test environment temperature is within a preset temperature range and the preheating time of the microwave signal source meets a preset time range, then setting test parameters of the microwave signal source, and then starting from the initial power; adjusting the current output power of the microwave signal source according to the power step length, and controlling the microwave signal source to output a microwave signal to the to-be-detected detection module according to the current output power; the method comprises the steps that a microwave signal source is connected with a detection module to be tested, output voltage of the detection module to be tested is obtained, the output voltage is processed and stored, when current output power of the microwave signal source reaches end power, a test end signal is displayed, test is stopped, and input power test data and corresponding output voltage test data of the detection module to be tested are obtained. According to the invention, the efficiency and reliability of microwave power testing can be effectively improved.

The present invention belongs to the field of vacuum electronics, and discloses a structure for improving the output power of a microwave energy transmission window and a composite thin film metallization method. The method is to coat a composite film of a certain thickness on the microwave energy transmission window in two steps by magnetron sputtering coating. First, a mask is used to cover the middle area of ​​the dielectric window, and the edge is coated with composite film layers of different thicknesses by magnetron sputtering or electron beam evaporation. The composite film layer can realize vacuum welding of the window; then a mask is used to cover the edge, and a certain thickness of titanium nitride or silver oxide is plated in the central area of ​​the dielectric window by magnetron sputtering or electron beam evaporation. The titanium nitride or silver oxide in the central area can significantly reduce the plasma breakdown caused by high microwave power. The present invention is applicable to the field of vacuum electronics technology, and the method can improve the pressure resistance of the energy transmission window and significantly improve the power capacity of the energy transmission window.

The invention relates to a method for rapidly preparing stannous methanesulfonate, which comprises the following steps of: reacting tin with a methanesulfonic acid solution for a period of time in microwave heating, cooling, crystallizing, filtering, washing and drying to obtain a stannous methanesulfonate product, the molar ratio of tin to methanesulfonic acid is 1: (2-6), the microwave power is 500-1500 W, the reaction temperature is 120-150 DEG C, and the reaction time is 1-2 hours. Compared with the problems of high-temperature decomposition and unstable yield caused by temperature difference inside and outside a reactor in traditional oil bath heating, infrared and microwave are combined, the reaction temperature can be accurately controlled through infrared temperature control, decomposition of stannous methanesulfonate caused by too high temperature is avoided, then the effect of directly aggravating molecular movement on reactant molecules through microwaves, and the yield of stannous methanesulfonate is improved. The method has the advantages that the reaction is accelerated obviously, the stannous methanesulfonate can be quickly prepared within 1-2 hours by the aid of limitation of preparation parameters, and the yield is stabilized at 84.1%-92.4%.

The invention relates to a concrete member microwave curing mechanical property improving method based on thermal uniformity, which comprises the following steps: determining the microwave source position of used microwave equipment, determining the optimal position of a to-be-cured concrete member in a microwave field through an experiment or simulation means, and calculating the mechanical property of the to-be-cured concrete member when the member is in the optimal position. The distance from the centroid of the component to the microwave source is l; the microwave frequency f and the initial microwave intensity S0 at the microwave source are set, the microwave intensity S (1) at the position where the distance between the centroid and the microwave source is 1 is calculated according to the following formula, # imgabs0 # imgabs1 #, the concrete component to be cured is placed at the optimal position, and the component is subjected to microwave curing with the S (1) as the basis for setting the microwave power in the microwave intermittent curing process. According to the method, multiple factors such as microwave field distribution, component size and material characteristics are comprehensively considered, so that precise temperature control and uniform heating are achieved, and it is ensured that the overall quality of the concrete component is effectively improved.

The invention provides a single / double-module energy-adjustable superconducting electron accelerator device, a medical isotope production system and a medical isotope production method, and the device comprises an injection system which is used for generating an electron beam current with certain energy and current intensity; the acceleration module system comprises single or double parallel acceleration modules, and each acceleration module comprises a superconducting cavity and a low-temperature unit; the low-temperature unit comprises a refrigerator, a high-thermal-conductivity cold chain, and a cold shield and a vacuum shell which sequentially cover the periphery; the radio frequency system is used for feeding microwave power into the superconducting cavity, maintaining the amplitude and phase stability of an electromagnetic field and accurately compensating the frequency deviation of the superconducting cavity; and the electron motion trail control system is used for guiding the electron beam to pass through the acceleration module and the plurality of circulating transmission pipelines with the corner radiuses sequentially enlarged for multiple times. The technical problems that an existing accelerator is limited by serious heating and cannot achieve high-flow-intensity and high-energy operation, a low-temperature cooling system is complex, so that the operation and maintenance cost is high, high energy and high flow intensity cannot be considered at the same time, and medical isotope production is difficult to meet are solved.