206 results about "Radio-frequency induction" patented technology

A susceptor composition that can bond two or more layers or substrates to one another and that can be used to coat or cut a substrate. The susceptor composition is activated in the presence of radio frequency (RF) energy. In one embodiment, the susceptor composition of the present invention comprises at least one ionomer and a polar carrier. The ionomer and polar carrier are blended with one another and form a mixture, preferably a uniform mixture. The ionomer and polar carrier are present in an amount effective to allow the susceptor composition to be heated by RF energy. Also disclosed are RF induction heating systems.

A fast data transfer collection system using message authentication and contactless RF proximity card technology in non-contact storage and retrieval applications. The system is generally comprised of Host computers (application computer systems), Target radio frequency (RF) terminals, and a plurality of portable Tags ("smart" or "proximity" cards). A Host provides specific application functionality to a Tag holder, with a high degree of protection from fraudulent use. A Target provides control of the RF antenna and resolves collisions between multiple Tags in the RF field. A Tag provides reliable, high speed, and well authenticated secure exchanges of data / information with the Host resulting from the use of a custom ASIC design incorporating unique analog and digital circuits, nonvolatile memory, and state logic. Each Tag engages in a transaction with the Target in which a sequence of message exchanges allow data to be read(written) from(to) the Tag. These exchanges establish the RF communication link, resolve communication collisions with other Tags, authenticate both parties in the transaction, rapidly and robustly relay information through the link, and ensure the integrity and incorruptibility of the transaction. The system architecture provides capabilities to ensure the integrity of the data transferred thus eliminating the major problem of corrupting data on the card and in the system. The architecture and protocol are designed to allow simple and efficient integration of the transaction product system into data / information processing installations.

A method and apparatus for testing a thermal tripping mechanism having a bimetallic element deflectable in response to overload current by heating the bimetallic element by radio frequency induction heat.

The present invention discloses an apparatus for plasma processing comprising of a chamber for plasma processing with an external wall, and at least one induction coil for providing a radio frequency induction field that is adjacent to the chamber. It further includes an end terminal of the induction coil that is connected to a radio frequency power supply, another end terminal of the induction coil that is open-ended, and a grounded terminal of the induction coil that is located at substantially central position of the induction coil.

The invention provides a service robot grasp guidance system and a method thereof, and belongs to the technical field of robots. The system of the invention comprises an image collecting device, a radio-frequency induction receiving-transmitting device, and a vision and radio-frequency information confluence processing unit. The image collecting device is mounted at the head part of a robot. The vision and radio-frequency information confluence processing unit is mounted on the body of the robot and receives the panoramic visual information transmitted from the image collecting device and the radio-frequency information transmitted from the radio-frequency induction receiving-transmitting device. The method of the invention comprises the steps of mounting a passive radio-frequency tag; using a panoramic CCD camera to collect images and establishing a sequential all-dimensional image library; transmitting a command of fetching a specific article from a target position to the robot; realizing automatic location of the robot; and identifying a to-be-fetched article by a radio-frequency induction transceiver mounted at the gripper portion of the robot. The invention uses a panoramic vision to realize location and navigation of a mobile robot, identifies an article to be picked up by RFID, and provides sufficient information for the mobile robot to fetch articles.

An electrodeless fluorescent lamp 10 has an envelope 12 that includes a chamber 14. A core 16 of magnetic material, preferably ferrite, is positioned in the chamber 14 and has a first winding 18 surrounding the core and having first and second lead-in wires 20, 22, attached to a high frequency voltage supply or ballast 24. A second winding 26 surrounds the core 16, respective turns of the second winding 26 being located adjacent turns of the first winding 18 and electrically insulated therefrom. The second winding 26 has a free end 28 and has another end 30 connected to one of the lead-in wires, for example 20. A braided sheath 32 surrounds the other of the lead-in wires 22. The first winding 18 is generally called the RF antenna. The braided sheath 32 is connected to the local ground. This inexpensive solution alone reduces the conductive EMI level sufficiently to pass all existing regulations on such interference with significant reserve.

The invention discloses a medical management system based on a wireless radio frequency identification technology. The medical management system based on the wireless radio frequency identification technology comprises electronic tags, a radio frequency induction antenna and client-sides of a computer and a hospital integrated management system, wherein integrated circuit chips and readers are embedded into the electronic tags; the electronic tags and the radio frequency induction antenna are combined in a specific working frequency band and mode; data in the electronic tags can be read by the radio frequency induction antenna within the effective identification range; the radio frequency induction antenna emits wireless radio frequency identification signals within the range and transmits the fed back signals to related read-write and storage devices. The medical management system based on the wireless radio frequency identification technology can track patients, medical workers, medical wastes, medical instruments, special drugs, medical detection samples and the like in a hospital, the built network system is used for transmission, and remote identification, identity judgment, tracking, locating, information recording, alarming, gang control and other work are carried out through a background management system.

An electrodeless fluorescent lamp 10 has an envelope 12 that includes a chamber 14. A core 16 of magnetic material, preferably ferrite, is positioned in the chamber 14 and has a first winding 18 surrounding the core and having first and second lead-in wires 20, 22, attached to a high frequency voltage supply or ballast 24. A second winding 26 surrounds the core 16, respective turns of the second winding 26 being located adjacent turns of the first winding 18 and electrically insulated therefrom. The second winding 26 has a free end 28 and has another end 30 connected to one of the lead-in wires, for example 20. A braided sheath 32 surrounds the other of the lead-in wires 22. The first winding 18 is generally called the RF antenna. The braided sheath 32 is connected to the local ground. This inexpensive solution alone reduces the conductive EMI level sufficiently to pass all existing regulations on such interference with significant reserve.

The invention relates to a processing method of prepn. vanadium nitride by fluidized bed technology and corresponding special device. The characteristic is to create plasma body in reaction zone of fluidized bed by ratio frequency induction, the reaction gas ammonia, nitrogen and hydrogen are excited and ionized to create active hydrogen and nitrogen particle which is made reducting and nitrating reaction with vanadium oxide particle suspensing in fluidized zone to create vanadium nitride. The special device used by this invention includes fluidized bed, radio frequency inducting coil, radio frequency power source, heater, air supply tank, air current distributor, air-extracting system, air valve, general air valve controlling and adjusting reaction gas flow and the pipe line system.

The present invention relates to a kind of RF identifying (RFID) method for identifying article, real-time tracking and positioning, and the vehicle positioning and traffic information collecting and processing system on the basis of RFID method. Specifically, RF inducing transceivers are installed in different cross roads, RFID units, such as non-contact IC cards, are installed in the vehicles, computers in the cross roads receive the ID codes in the vehicles and all the computers are networked for centralized analysis and processing for positioning, counting, analyzing and processing traffic amount. Compared with GPS positioning technology, the present invention is simple and low in cost.

An underground cable fault monitoring system provided by the invention comprises a robot, a cable indication pile and an upper computer. The cable indication pile comprises a column, solar panels, a lithium battery, a single chip microcomputer, a GPS orientation module, a wireless power device, a data relay device and a radio-frequency induction device. The GPS orientation module is in communication connection with the upper computer; the robot includes an electric energy wireless receiving device configured to receive the wireless power device, a second wireless data receiving and dispatching module configured to match the first wireless data receiving and dispatching module of the data relay device, and a radio frequency card configured to cooperate with the radio-frequency induction device; and the upper computer includes a map configured to display the position of the cable. According to the invention, a cable indication pile is fully developed and is integrated with functions of power supply, data forwarding, geographic position orientation, a warning light and the like so as to supply uninterrupted electric energy for the robot and accurately orientate cable fault positions.

A secrecy intelligent card for the electronic case history is made up of a plastic rectangle sheet. The microprocessor is installed in the rectangle sheet which connects to the memorizer, the fingerprint sensor, the currency serial bus interface circuit, the wireless radio-frequency interface circuit. The power supply leading foot of the microprocessor and the fingerprint sensor are connected with a capacitor which is connected with a unilateralism electronic pump that is connected to a LC series resonant circuit. The case history is inputted to the microprocessor by the he currency serial bus interface circuit and stored in the memorizer. The fingerprint sensor controls the read of the information in the memorizer. The USB and the non-contact radio-frequency induction technology can reach the two working mode, so it can be used in the wide region and many devices.

The invention provides vacuum melting die-casting equipment which comprises a melting device, an injection device, a first driving device, a product forming mould and a second driving device, wherein the first driving device can drive the injection device to reciprocate in the melting device; the melting device is in sealed connection with the first driving device and the product forming mould respectively; the second driving device is connected with the product forming mould and can control the opening / closing of the product forming mould; and the vacuum melting die-casting equipment is characterized in that: the melting device comprises a vacuum cylinder, a material pipe and a radio-frequency induction coil, wherein the vacuum cylinder provides a vacuum environment for the melting; the material pipe is located in the vacuum cylinder and used for placing a metal blank; and the radio-frequency induction coil is located outside the vacuum cylinder, contacts with the vacuum cylinder and can heat the metal blank in the material pipe. After the melting is finished, the driving device drives the injection device to finish the injection process, and the injection device injects from bottom to top. The vacuum melting die-casting equipment has a simple structure and relatively low cost, and is convenient to operate.

An induction RF fluorescent lamp includes a lamp envelope with a re-entrant cavity both covered on a partial vacuum side with phosphor and filled with a working gas mixture; a power coupler on the non-vacuum side of said re-entrant cavity comprising a ferromagnetic core overwound with at least one turn of an electrical conductor; an electronic ballast, wherein the ballast converts mains frequency voltage and current to a power coupler frequency voltage and current, the electronic ballast providing the voltage and current to the power coupler through at least two of a plurality of electrical terminals of the electronic ballast; a capacitor electrically connected between the ferromagnetic core and at least one of the plurality of electrical terminals of the electronic ballast, wherein the magnitude of the impedance of the capacitor is high at the mains frequency and the magnitude of the impedance of that same capacitor is low at the operating frequency of the RF fluorescent lamp.

The present invention discloses an apparatus for plasma processing comprising of a chamber for plasma processing with an external wall, and at least one induction coil for providing a radio frequency induction field that is adjacent to the chamber. It further includes an end terminal of the induction coil that is connected to a radio frequency power supply, another end terminal of the induction coil that is open-ended, and a grounded terminal of the induction coil that is located at substantially central position of the induction coil.

The invention relates to an enhanced radio frequency inductively coupled plasma discharge device and belongs to the low-temperature plasma application technical field. According to an existing ICP discharge device, the density of plasmas is difficult to achieve a high numerical value due to weak collision, while, with the enhanced radio frequency inductively coupled plasma discharge device of the invention adopted, the above situation can be avoided. The enhanced radio frequency inductively coupled plasma discharge device comprises an upper end cover, a lower end cover, a cylinder quartz glass tube, a plurality of long rod bolts, an inner electrode coil and an outer electrode coil; the upper end cover, the lower end cover and the cylinder quartz glass tube jointly form a vacuum cavity air chamber; a plurality of upper end mounting holes are uniformly distributed at the outer edge portion of the upper end cover along the circumferential direction of the upper end cover; an inner electrode coil mounting hole and an air inlet are formed in the upper end cover; a plurality of lower end mounting holes are uniformly distributed at the outer edge portion of the lower end cover along the circumferential direction of the lower end cover; a measurement hole and a vacuumizing hole are formed in the lower end cover, wherein the measurement hole is used for accommodating a probe-class measuring component, and the vacuumizing hole is connected with a vacuumizing system through a vacuum corrugated pipe; the outer circumferential surface of the cylinder quartz glass tube is provided with the outer electrode coil; and the inner electrode coil is arranged in the vacuum cavity air chamber and is installed in the inner electrode coil mounting hole.

A conducting wire assembly (80) is provided for use with a magnetic resonance imaging (MRI) system (10). The conducting wire assembly (80) includes at least one impedance component (82) coupled externally to a conducting wire (34). The impedance component (82) is configured to dynamically vary an impedance of the conducting wire to disrupt resonant conditions of the conducting wire and to avoid current and / or voltage built-up on the wire and the associated heating of surrounding tissue.

An antenna arrangement for generating an rf field distribution at a plasma generating region inside a chamber wall of a process chamber of a plasma processing apparatus is described. The antenna arrangement includes an rf inductive antenna to which an rf power supply can be connected to supply an rf current to generate a first rf field extending into the plasma generating region. A passive antenna is also provided which is inductively coupled to the rf inductive antenna and configured to generate a second rf field modifying the first rf field. The rf field distribution at the plasma generating region increases the processing uniformity of the processing apparatus compared to that in the absence of the passive antenna.

The invention discloses a method for reducing defects in a silicon carbide epitaxial film. The method is executed in horizontal hot wall-type chemical vapor deposition (CVD) equipment and comprises the following steps of 1) substrate preparing, wherein a (0001) silicon-surface silicon carbide substrate deviating towards the (11-20) direction by 4 degrees is selected; 2) pre-growth baking, wherein a reaction chamber is subjected to radio frequency induction heating after a prepared sample is delivered to a reaction chamber and before gas is injected; 3) in-situ etching, wherein an improved hydrogen H2 in-situ etching technology is employed to perform pre-growth surface pre-treatment of the substrate; and 4) epitaxial growing, wherein a silicon carbide film starts to grow when the temperature rises to an epitaxial growth temperature. The advantages are that by using the method, the defects existing in the epitaxial film based on the (0001) silicon-surface silicon carbide substrate deviating towards the (11-20) direction by 4 degrees can be effectively reduced and the quality of the epitaxial film can be increased. The characteristics are that the method of the invention is simple and easy to implement; the epitaxial technology repeatability and consistency are good; the epitaxial film quality is high; and the method is suitable for mass production.

An induction RF fluorescent lamp includes a lamp envelope with a re-entrant cavity both covered on a partial vacuum side with phosphor and filled with a working gas mixture; an air-core power coupler on the non-vacuum side of said re-entrant cavity comprising a coil composed of at least one turn of an electrical conductor; an electronic ballast, wherein the ballast converts mains frequency voltage and current to a power coupler frequency voltage and current, the electronic ballast providing the voltage and current to the power coupler through at least two of a plurality of electrical terminals of the electronic ballast; and a capacitor electrically connected between the air-core power coupler and at least one of the plurality of electrical terminals of the electronic ballast, wherein the magnitude of the impedance of the capacitor is high at the mains frequency and the magnitude of the impedance of that same capacitor is low at the operating frequency of the RF fluorescent lamp.

The invention discloses a medium information transmission system and a medium information transmission method, wherein an advisement player in the medium information transmission system is interacted authenticated data with a wireless user terminal by means of a radio frequency mode by a radio frequency authentication unit, and authenticated with the wireless user terminal according to the authenticated data. Wireless connection is built between the advisement player and the wireless user terminal through a wireless communication unit, and through which the wireless communication is performed. A control unit controls the radio frequency authentication unit and the wireless user terminal to perform authentication operation when the wireless user terminal enters a radio frequency induction area, and controls the wireless communication unit to send the corresponding media information. The adoption of the invention not only saves resources, but also quickens the transmission of the medium information.

A processing apparatus subjects an object to be processed W to a heat process. The processing apparatus comprises: a processing vessel 22 capable of containing a object to be processed W; a coil part for induction heating 104 that is disposed outside the processing vessel 22; a radiofrequency power source 110 configured to apply a radiofrequency power to the coil part for induction heating 104; a gas supply part 90 configured to introduce a gas into the processing vessel 22; a holding part 24 configured to hold the object to be processed W in the processing vessel 22; and a induction heating element N that is inductively heated by a radiofrequency from the coil part for induction heating 104 so as to heat the object to be processed W. The induction heating element N is provided with a cut groove for controlling a flow of an eddy current generated on the induction heating element.

The present invention provides a method for coupling the mobile terminal with the adapter. Firstly, coupling the mobile terminal with the adapter by RF induction; secondly, decreasing transmitted power of the mobile terminal so that the RF power leaking around is maintained below a specified value when the mobile terminal detects that it has been coupled with the adapter; finally, controlling the gain controlling means of the adapter by the mobile terminal to compensate the power loss due to the RF coupling and the transmitting power decreased by the mobile terminal itself, so that the transmitted power from the antenna of the adapter can reach the due power level transmitted by the mobile before it is coupled with the adapter. The structure of the mobile terminal is simplified and the price of the mobile terminal is decreased because the mobile terminal is coupled with the adapter through RF induction, and the RF changeover switch is not provided in the mobile terminal any more. Furthermore, the transmitting power in vehicle is always maintained below the European standard while the RF property of the mobile terminal is not degraded.

A hybrid plasma generator for processing a silicon-based material comprises a DC plasma generator and a radio frequency induction coupling plasma generator. Compared with a conventional radio frequency coupling plasma generator for processing the silicon-based material, the hybrid plasma generator has the following remarkable advantages that 1, the processing efficiency is high, arc plasma jet issimulated secondarily under an effect of an induction coil magnetic field, more energy is obtained within unit time to simulate working gas, so that the number of reaction active particles in unit volume is increased; 2, the ignition process is optimized, ignition is completed through an electric spark generated by a negative electrode part and a positive electrode part, and the problem that a quartz glass tube is easy to damage during the ignition process of a traditional radio frequency induction coupling plasma generator is solved; and 3, the surface quality of the silicon-based material after being processed is improved, the plasma jet with constant beam spot diameter is maintained for a long time under the condition that a setting parameter is not changed, and the certainty processingof a material surface is achieved.

The invention relates to a safe positioning school bus picking system, and the system comprises a cloud control platform, a student sub-terminal, and a school bus safety module. The student sub-terminal and the school bus safety module are in wireless communication connection with the cloud control platform. The cloud control platform comprises a processor, a positioning detection module, a first communication module, a human face recognition database, a safety prompt module, an alarm module, a data storage module, and a comparison module. The human face recognition database is used for storing the face data of students, parents, a school bus driver and a conductor, and updates the face data of persons wanted by the Ministry of Public Security. The student sub-terminal comprises a radio frequency module and a second communication module. The school bus is provided with a positioning module, thereby facilitating the timely obtaining of the running path and state of the school bus, and facilitating the processing of emergency. The first and second radio frequency induction modules are used for sensing the student sub-terminal. The human face recognition module carries out human face recognition, and effectively prevents the possible leaked picking or wrong picking.

The invention relates to a lock which comprises a key detection module, a control module and a radio frequency induction antenna, wherein the key detection module is used for outputting a specific number of level signals when a key is correctly placed into a specific position on the lock; the control module is connected with the key detection module, and is used for controlling the radio frequency induction antenna to enter a working mode when the level signals are received in a certain time and controlling to unlock according to unlocking data of the key, which is uploaded by the radio frequency induction antenna; and the radio frequency induction antenna is connected with the control module and is used for receiving the unlocking data of the key and uploading the unlocking data of the key to the control module when controlled to enter the working mode by the control module. The invention further correspondingly provides an unlocking method of the key. After the lock and the unlocking method are used, the energy consumption of the lock can be reduced.

The invention relates to a radio frequency induction lamination level sensor, belongs to the filed of detecting devices, and aims to provide a sensor. The sensor can delaminate a medium to be detected infinitely and have a panoramic view of the distribution situation of dielectric layers to be detected so as to completely eliminate measuring blind areas and greatly improve the measuring accuracy, can accurately measure the interface of two liquid media with different specific inductive capacities or the interface of a gas and a liquid, also can accurately measure oil-gas interface, oil-emulsified layer interface and water-emulsified layer interface, and can perform full-range and high-precision measurement on the thicknesses of an oil layer, an emulsified layer and sewage in a crude oil storage tank. The sensor is provided with a radio frequency transducer and a measuring pole, and is characterized in that a columnar or tubular insulator supports the inside of the measuring pole; and electrodes which are insulated mutually and have the same shape and size are laminated and arrayed on the outer side of the columnar or tubular insulator at equal intervals; each electrode is electrically connected with the radio frequency transducer through a shielded cable respectively; and the outer layer of the measuring electrodes is provided with an insulated sleeve.

The invention provides a high-frequency induction evaporation source device. The high-frequency induction evaporation source device comprises an inner crucible used for bearing evaporation materials, an induction coil arranged on the periphery of the inner crucible in a sleeving mode, a radio frequency generator connected with the induction coil and a radio frequency induction heating component arranged in the inner crucible. The induction coil is used for receiving alternating current emitted by the radio frequency generator to generate an induced magnetic field. The radio frequency induction heating component comprises an induction kernel body with the electrical conductivity. The induction kernel body generates induced current in the induction magnetic field of the induction coil and generates heat to heat the evaporation materials. Compared with an existing high-frequency induction evaporation source device, the high-frequency induction evaporation source device has the advantages that the heating area of the evaporation materials in the inner crucible can be effectively dispersed, and accordingly, the problems that the local heating rate of evaporation materials is not uniform and evaporation materials close to the wall of the inner crucible are locally overheated and crack are effectively avoided.

The invention provides a manufacturing process of an ultra-low carbon X42 steel grade high frequency straight welding tube, which adopts the steps of welding a reel tail of a front reel and a reel head of a back reel of the ultra-low carbon X42 steel grade high frequency straight welding tube with C content of 0.33-0.06% through steel by adopting consumable electrode gas protection protected by carbon dioxide gas; adopting a cage forming method to enable welded strip steel to be formed into a pierced billet; adjusting output power of a radio-frequency induction coil; extruding the pierced billet with the extrusion quantity of 1-4.5% * D, wherein the D is the external diameter of an end product tube, and the angular aperture theta is controlled between 3 degrees and 6 degrees; welding to be the high frequency straight weld tube with the welding speed of 14-20m / min; conducting normalizing heat treatment on welding joints with the normalizing heat treatment temperature of 950+-20 DEG C, slowly cooling the welding joints to 400 DEG C in air after normalizing, and enabling the welding joint temperature to drop to the temperature below 80 DEG C after water cooling. The performance of the welding tube achieves the levels that the tensile strength of the welding joints is no less than 415 MPa, unit value of charpy ballistic work of the welding joints is no less than 40J, and mean value of the welding joints is no less than 40J.