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 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.

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 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.

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.

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.

A hybrid plasma generator for processing silicon-based materials, mainly composed of a DC plasma generator and a radio-frequency inductively coupled plasma generator, and a common RF-coupled plasma generator for processing silicon-based materials In comparison, this hybrid plasma generator has the following outstanding advantages: 1. High processing efficiency, under the action of the magnetic field of the induction coil, the arc plasma jet is excited twice, and more energy is obtained per unit time to excite the working gas, so that the unit volume The number of reactive particles in the middle increases; 2. Optimizing the ignition process, relying on the electric spark generated by the cathode part and the anode part to complete the ignition, overcoming the problem that the traditional radio frequency inductively coupled plasma generator is easy to damage the quartz glass tube during the ignition process; 3. After upgrading The surface quality of silicon-based materials, the plasma jet that maintains a constant beam spot diameter for a long time under the condition of constant setting parameters, realizes the deterministic processing of the material surface.

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.