53 results about "Microwave" patented technology

An electrode device is for microwave coagulation therapy disclosed in which the direction of its electrode tip can be controlled by operation in its proximal region. The device comprises: a handpiece provided with a rigid hollow support shaft extending toward a distal end, a movable support provided at the distal end of the support shaft and carrying thereon an electrode, a coaxial cable which is connected at its proximal end to a coaxial connector and extending through the support shaft and connected in the movable support to the electrode, wherein: (a) the movable support comprises one or more links each surrounding the coaxial cable and longitudinally connected to the distal end of the support shaft so that the movable support can be bent and stretched in a single plane, and (b) the electrode device comprises a resilient stiff member fixed at one of its end to the deflection side of the most distal one of the links composing the movable support and extending through the support shaft and so connected at its proximal end to a control section of the handpiece that the resilient stiff member can be pulled and pushed back at the proximal end of the handpiece.

The present invention comprises a modular microwave source comprising a novel electromagnetic oscillator based on a modified Blumlein architecture with an integrated antenna. In one or more embodiments, the invention comprises a triplate Blumlein in which the plates are configured and arranged to act as a waveguide and antenna. In one or more embodiments, high-permittivity dielectric materials are disposed between the center plate and one or both of the top and bottom plates to increase the energy storage and lengthen the duration of a damped sinusoid output. In one or more embodiments, photo-conductive semiconductor switches are disposed between the center plate and one or both of the top and bottom plates to act as high-speed switches. In one or more embodiments, a plurality of the modular microwave sources of the invention are arranged in an array, creating a compact, tunable, high-power microwave source suitable for mobile applications.

The invention discloses a method and a system for modularized combined treatment of high-difficulty organic waste water, and the treatment system comprises: a primary settling tank, an adjusting tank, a reinforced flocculation tank, a precipitation separation tank, a secondary flocculation settling tank, a buffering water tank, a pH adjusting tank, a primary honeycomb microelectrolytic tank, a flocculation settling tank, a secondary honeycomb microelectrolytic tank, an intermediate tank, a heat exchanger, a microwave catalytic oxidation device, a secondary catalytic oxidation pot, and a re-oxidation filter pipe. The treatment method adopts a combined technical scheme of a multistage honeycomb iron carbon microelectrolytic module, a reinforced flocculation module and a microwave electro-catalytic oxidation module; the invention has the characteristics of high applicability, good treatment effect, and unit modularization; the modules can be combined and cascaded freely according to the waste water condition, and thus different waste water treatment effect requirements and waste water quantity requirements are adapted; the operation cost is low; the sludge amount is low; no secondary pollution is caused; and the method is an environment-friendly high-difficulty waste water treatment method.

The invention discloses a method for preparing a ZnWO4 nanorod photocatalysis material. The method includes preparing a tungstic acid solution A, a zinc chloride solution B and a sodium citrate solution C; dropwise adding the solution A and the solution C into the solution B to form a solution D; regulating potential of hydrogen (pH) of the solution D to 6-8, and uniformly stirring to obtain a solution E; adding the solution E into a microwave hydrothermal reaction kettle, performing a heating reaction, naturally cooling the solution E to the room temperature after the reaction is finished, and taking out the reaction kettle; and opening the reaction kettle, washing a product for 4-6 times by deionized water and absolute ethyl alcohol, and drying to obtain the ZnWO4 nanorod photocatalysis material. According to the method, the microwave hydrothermal method is utilized to rapidly synthesize the ZnWO4 nanorod with the photocatalysis property, the later crystallization heat treatment is not required, the obtained product is high in purity, and the shape is controllable. The ZnWO4 nanorod with the photocatalysis effect can be synthesized in 10 minutes, and the degradation rate of the prepared ZnWO4 nanorod to rhodamine B in 50-60 minutes can reach to 97%-99%.

The invention discloses a preparation method of a porous diamond film. The preparation method of the porous diamond film comprises the following steps: putting a silicon substrate into a microwave-plasma chemical vapour deposition device, wherein a Pt metal film is plated on the surface of the silicon substrate as a catalyst; controlling the vacuum degree to be 10-30 millibars, introducing a working gas, loading a carbon source to a microwave-plasma generating region, and heating to 750-850 DEG C; depositing to obtain a blocky diamond film; calcining the film in the air atmosphere at the temperature of 500-600 DEG C, thus obtaining the porous diamond film. The preparation method of the porous diamond film has the advantages that no template is needed, no complex pre-treatment process or high temperature process is needed, metal pollution can be avoided, and a treatment process is further simplified.

A method and apparatus for producing an RF part of an antenna system is disclosed, as well as thereby producible RF parts. The RF part has at least one surface provided with a plurality of protruding elements. In particular, the RF part may be a gap waveguide. The protruding elements are monolithically formed and fixed on a conducting layer, and all protruding elements are connected electrically to each other at their bases via the conductive layer. The RF part is produced by providing a die having a plurality of recessions forming the negative of the protruding elements of the RF part. The die may be a multilayer die, having several layers, at least some having through-holes to form the recessions. A formable piece of material is arranged on the die, and pressure is applied, thereby compressing the formable piece of material to conform with the recessions of the die.

The invention relates to a space-borne microwave atmospheric sounding instrument, which comprises feed sources, calibration bodies, a motor, plane mirrors, parabolic reflectors, a scanning drive control module, multiplexers and receiver units. The motor is controlled by the scanning drive control module to drive the plane mirror to rotate. The plane mirrors reflect received electromagnetic wave signals to the parabolic reflectors in the form of plane waves by scanning the atmosphere and the calibration bodies. The parabolic reflectors realize secondary reflection to enable the plane waves to be reflected to the corresponding feed sources arranged opposite thereto. The multiplexers are used for separating the frequency of the electromagnetic wave signals received by the feed sources respectively. Each receiver unit comprises a plurality of receivers parallel with the output end of the corresponding multiplexer, and is used for receiving the electromagnetic wave signals matched with the frequency thereof. The space-borne microwave atmospheric sounding instrument has the advantages of being high in performance, high in integration, low in weight and low in power consumption.

The invention relates to composite reinforced multinutrition rice and a process thereof, belonging to the field of grain processing. The invention can be popularized and applied to the nutrition reinforcing process of other grains. In the invention, the composite reinforced multinutrition rice is processed by reinforcing five nutrients of folic acid, sodium ferric ethylene diamine tetraacetic acid, L-lysine hydrochloride, zinc gluconate and calcium lactate in rice by the steps of ultrasonic soaked adsorption, steaming gelatinization and microwave drying. The reinforced rice disclosed by the invention is rich in multiple nutrients and has short production cycle, high processing efficiency and high product quality; and appearance and other items of quality indexes meet the requirement.

The invention relates to foods and beverage, in particular to a preparation method of instant functional solid beverage containing black fungus. The preparation method comprises the following steps: mixing raw materials, wherein weight ration of black fungus to yacon to sweet potato to hawthorn in the raw materials is 1:4:3:2; deep processing: adding auxiliary materials; mixing the raw materials and the auxiliary materials; and carrying high-pressure homogenization, vacuum concentration, vacuum microwave freeze drying and superfine grinding in sequence and finally pelleting. The addition of the auxiliary materials accounts for 20-30% of the total weight of the mixed materials. According to the technical scheme, the preparation method has the following advantages: sugar-free four-in-one functional solid beverage is researched and developed by processing fruit and vegetable raw materials such as black fungus, yacon, sweet potato and hawthorn according to a production process of granular instant solid beverage; the prepared instant functional solid beverage is applicable to men and women, young and old people, as well as patients with diabetes, the respective functional effects of the raw materials can be given a full plate; moreover, the shelf period of the instant solid beverage is prolonged greatly, the raw materials are combined for the first time, and the instant solid beverage has healthcare function and edible value.

A method utilising microwave plasma chemical vapour deposition (MPCVD) process of producing electronic device grade single crystal diamond comprising of: (a) selecting a diamond seed or substrate having a pre-determined orientation, (b) cleaning and/or etching of non-diamond phases and other induced surface damages from the diamond seed or substrate, whereby this step can be performed one or more times, (c) growing a layer of extremely low crystal defect density diamond surface on the cleaned/etched diamond seed or substrate, whereby this step can be performed one or more times, and (d) growing electronics device grade single crystal diamond on top of the layer of the low crystal defect density diamond surface.

Disclosed therein is a method for preparing a polyacrylonitrile-based polymer for preparation of carbon fiber having a melting point controlled by selecting an optimal energy of microwave, and a method for preparing a carbon fiber through melt spinning using the preparation method for polyacrylonitrile-based polymer. The present invention uses microwave to control the properties of the polyacrylonitrile-based polymer in a simplified way and prepare the polymer optimized for preparation of carbon fiber precursor through melt spinning for a short polymerization time, and provides a means for mass production of the polyacrylonitrile-based polymer being suitable for melt spinning at a temperature lower than the stabilization temperature and acquiring properties adequate to preparation of carbon fiber through stabilization. Hence, the present invention is expected to contribute to mass production of high-performance carbon fibers at reduced cost.

The invention discloses a vegetable noodle production process and a microwave drying device thereof. The vegetable noodle production process comprises a main rack, a conveyor belt and a plurality of sets of reinforcing bars are arranged at the upper end of the interior of the main rack in an embedded manner, the multiple sets of reinforcing bars are located below the conveyor belt, a motor box isfixedly mounted on the position, close to one side, of the rear surface of the main rack, the upper surface of the conveyor belt is provided with a plurality of sets of drying racks in parallel, and the upper surface of the main rack is fixedly provided with a drying box; and the front surface of the drying box is fixedly provided with a timing switch and a thermal circuit breaker, the thermal circuit breaker is located at one side of the timing switch, and the upper surface of the drying box is fixedly provided with an exhaust component and two sets of magnetrons. According to the vegetable noodle production process and the microwave drying device thereof, in the process that vegetable noodles are dried, the vegetable noodles can be conveniently hung and taken out, water steam inside thedrying box can be quickly exhausted in the drying process, dough cake drying can be achieved, and the functionality of the drying device is increased.

The invention relates to a preparation method of bar-shaped NiTiO3 nano-crystalline, which comprises the following steps that: nickel nitrate hexahydrate is added into ethanol to obtain solution A; tetrabutyl titanate, oxalic acid and water are added into solution A to obtain solution B; after the solution B is arranged into a ultraviolet microwave instrument to be radiated for a given period of time, sediment is produced in the solution. The filtered sediment is arranged inside a drying box to be dried after being washed by acetone to obtain the final product - bar-shaped NiTiO3 nano-crystalline without any foreign matters. The prepared NiTiO3 nano-crystalline particles have small size, good dispersion, uniform distribution of particles, less agglomeration phenomenon and is free from containing any foreign matters; the prepared NiTiO3 nano-crystalline has short reaction period, good repeatability, simple preparation, convenient operation, easy obtaining of raw material and low preparation cost.

A microwave device for the ablation of biological tissues including a coaxial antenna, including an internal conductor, surrounded by a layer of dielectric material, an external conductor coaxial to the dielectric metal tip electrically connected to the internal conductor, and a quarter wave impedance transformer including a sleeve made of dielectric material having a proximal end covered with a layer of metal, the metal extending over nearly a quarter wavelength of electromagnetic field in the dielectric at the operating frequency of the device or of odd multiples of the quarter wavelength, the layer of metal material being connected electrically to the external conductor.

The invention discloses an embedded microwave cyclic adsorption-desorption column, comprising an adsorption-desorption column main body and a bottom fixing tripod. The side surface of the lower part of the main body is provided with a gas inlet. A material separating screen is disposed above the gas inlet in the main body. A supporting plate is disposed at the bottom of the material separating screen. The top of the main body is provided with a filler port, a gas outlet and a spare port. The bottom of the main body is provided with a dreg discharging port and a vacuum desorption port connectedto a vacuum pump. The side surface of the lower part of the main body is provided with a material discharging port above the material separating screen. A plurality of temperature sensing points aredisposed in the main body. A microwave heater is mounted in the main body in a horizontal embedded manner or a longitudinal embedded manner. The adsorption-desorption column increases the desorption efficiency and desorption effects through a composite desorption manner combining embedded microwave heating and vacuumization, and occupies a space smaller than the space occupied by an existing microwave desorption device.

The invention discloses a low-temperature chain processing technology of maca superfine powder from fresh maca through freeze-thawing and wall breaking, and belongs to the field of food processing. The low-temperature chain processing technology of the maca superfine powder comprises the following steps: harvesting fresh maca; carrying out pre-treatment, namely removing leaves, stems, fibrous roots and the like from the harvested maca; carrying out washing and air-drying, packing the air-dried maca in freshness protection packages, and carrying out storing in a fresh keeping cabinet at 1-2 DEG C; slicing the freshness-protected maca and conducting dicing, freezing the maca dices in a refrigerator at 16 DEG C below zero for 6 hours, and thawing the frozen maca dices at normal temperature for 1 hour; freezing the thawed maca dices in the refrigerator at 16 DEG C below zero for another 6 hours, and thawing the frozen maca dices at normal temperature for 1 hour; transferring the thawed maca dices into a microwave or infrared dryer which utilizes air of room temperature (40 DEG C or lower) as a cooling medium, and rapidly drying the materials while maintaining the temperature of the materials being 58 DEG C or lower until the water content of the materials is 5% or lower; and transferring the dried maca dices into a low-temperature (45 DEG C or lower) ultrafine grinder so as to grind the maca dices until the particular sizes are 6.5 microns or smaller, wherein the whole processes are in a low-temperature (58 DEG C or lower) chain. Thus, the nutrients are preserved to the maximum extent, the cell walls are broken to the maximum extent, and the active ingredients are thereby fully released. The maca superfine powder with high fineness facilitates direct absorption through the oral mucosa and full utilization.

The invention relates to a wafer array cathode in the field of high-power microwaves. The wafer array cathode aims to solve the problems of the poor high-temperature ablation resistance property, the short operation life and the like of an existing chemical fiber velvet cathode. According to the technical scheme, stainless steel circular ring slices and medium circular ring slices alternatively sleeve a cathode substrate, the medium circular ring slices are made of carbon fiber cloth or glass fiber cloth which has the good high-temperature ablation resistance property, and cellosilk beams are divergent due to an electrostatic interaction and emit uniform electron beams while in use. The wafer array cathode is advantageous in that the wafer array cathode is simple in structure and easy to implement, the advantage of the good high-temperature ablation resistance property is obtained, the advantage of good emission uniformity is also obtained by utilizing a wafer array structure, and the life of the cathode is improved so that the service life of an MILO is improved.

The invention provides a microwave ferrite material, a preparation method thereof and a microwave communication device. The chemical formula of the microwave ferrite material is Y2.95-xBi0.05CaxNi0.02SnxFe4.87-xO12, wherein x is greater than or equal to 0.05 and less than or equal to 0.15. The preparation method comprises the following steps: preparing raw materials according to a stoichiometric ratio that the molecular formula is Y2.95-xBi0.05CaxNi0.02SnxFe4.87-xO12 and x is more than or equal to 0.05 and less than or equal to 0.15, and preparing the microwave ferrite material from the raw materials. The microwave ferrite material 4pi Ms is controlled to be 1750-1850 Gs, has the advantages of small line width and low loss, and can well meet the application requirements of microwave circulators and isolators.

A waveguide of the present invention comprises a waveguide main body made of a material selected from a boron nitride or an aluminum oxide, and a thin film made of a titanium nitride to cover an outer peripheral surface of the waveguide main body. The waveguide of the present invention can efficiently guide an electromagnetic wave such as a microwave, and has high physical and chemical durability.

The invention relates to a microwave heating dryer with adjustable power. At least two microwave radiation circuit units are installed in the dryer. Each microwave radiation circuit unit consists of a contactor, a high-voltage transformer and a corresponding set of three magnetic The three input coils of the high-voltage transformer are connected to the three output terminals of the contactor correspondingly, and the three output coils of the high-voltage transformer are correspondingly connected to the above three magnetrons. In each microwave radiation circuit unit, at least one The electromagnetic coil of the contactor of the microwave radiation circuit unit is connected with a power controller circuit for intermittent power supply. It can effectively improve the reasonable matching between the microwave output power and the load, improve the energy utilization rate and (heating) drying quality; at the same time, it is convenient to realize the control of the total power of (heating) drying, so as to facilitate the processing of different types of materials and different treatments. Reasonable operation of the microwave (heating) dryer under certain circumstances.

The invention relates to an extraction device, in particular to a traditional Chinese medicine microwave extraction device, and aims to provide the traditional Chinese medicine microwave extraction device which comprises a conveying motor, a helical blade, an extraction tank, a stirring paddle, a microwave generator, a baffle, a left right cylinder, a right cylinder and the like. The helical blade is arranged inside a feed bin; the helical blade is connected with the conveying motor through a hole formed in the feed bin; the extraction tank is formed below the feed bin; the microwave generator is arranged on the right side of the extraction tank; the baffle extends into the extraction tank through an opening formed in the right wall of the extraction tank; a rotating motor and the stirring paddle are arranged between the upper and lower cylinders and the extraction tank; the stirring paddle is arranged right above an opening formed in the top of the extraction tank; the stirring paddle extends into the extraction tank through the opening formed in the top of the extraction tank. The provided traditional Chinese medicine microwave extraction device is tight in procedure connection and realizes continuous production.

The invention aims to provide a vehicular microwave device, which is applied to being used on a vehicle. Through the device, the vehicle has the function of heating food, the requirements of long-distance and outdoor users are met, the use satisfaction degree of the vehicle is improved, actual needs of clients are solved, and an economic and healthy journey is provided. The vehicular microwave device comprises a power supply unit, a microwave generation unit and a food heating unit, wherein the microwave generation unit comprises a magnetron, an antenna and a waveguide tube; the waveguide tube is connected with the magnetron through the antenna; and the food heating unit comprises a box body and a microwave guide arm which is positioned in the box body and points to the food heating position, and the end part of the microwave guide arm penetrates through the box body and is positioned at a tube port of the waveguide tube. The vehicular microwave device is simple in structure, convenient to arrange, convenient to use, and suitable for vehicles.

The invention relates to a method for preparing a microwave sulfur lamp bulb, which solves the problems that the existing preparation process can not ensure high vacuum degree in the bulb and the purity of the pumped powdered sulfur and the charge amount of Ar gas and sulfur can not be easily controlled so as to result in that the luminous brightness, efficiency, color rendering and service life of the prepared sulfur lamp are all reduced. The invention has the preparation method that: 1. a device is prepared; 2. the device is heated and vacuumized so as to ensure that the vacuum degree in the device is maintained between 0.0002Pa to 0.0008Pa; 3. the glass tip which is convex from the upper part of a glass vessel is cracked; 4. the temperature of the powdered sulfur in the glass vessel is enhanced by adopting the Muffle furnace so as to ensure that the powdered sulfur in the glass vessel is evaporated into a quartz bulb; 5. the quartz bulb is cooled down to the room temperature after the powdered sulfur is completely evaporated and then the bulb is vacuumized and the Ar gas is pumped in the bulb so as to prepare the microwave sulfur lamp bulb. The microwave sulfur lamp bulb prepared by the invention has luminescene spectra similar to the solar spectrum and color rendering index reaching 82. The high vacuum degree and the high-purity sulfur in the bulb outstandingly enhance the service life of the bulb.