31results about How to "Avoid parallel" patented technology

A sputtering apparatus and a sputter film deposition method, which includes a conventional magnetron and an AC magnetron for deposition of a low refractive index film, and a conventional magnetron and an AC magnetron for deposition of a high refractive index film, performs film deposition by each of the AC magnetrons until having achieved 90% of a designed film thickness, and then performs the film deposition only by each of the conventional magnetrons, and which can control the film thickness with high precision and have excellent productivity.

There is provided an inclination adjusting mechanism including an annular upper plate that has an upper surface for connecting a table and a lower surface inclined relative to the upper surface, an annular lower plate that has an upper surface parallel to the lower surface of the upper plate and a lower surface parallel to the upper surface of the upper plate and facing an upper surface of a base, an upper rotating mechanism that rotates the upper plate, a lower rotating mechanism that rotates the lower plate, a first bearing provided between the lower surface of the upper plate and the upper surface of the lower plate, a second bearing provided between the lower surface of the lower plate and the upper surface of the base, and a connecting mechanism that connects the upper plate, the lower plate, and the base.

The present invention discloses a structural crack bionic monitoring system and a monitoring method thereof. The structural crack bionic monitoring system comprises a plurality of smart wires I on the structure to be monitored and a monitoring unit composed of a plurality of smart wires II. The smart wires I and II which are insulated from one another are crossly provided on the structure to be monitored to compose a smart neural network of plane coordinate system on the structure to be monitored. The invention can accurately confirm the generated position, shape, length, time and expanding state of the slit according to the perception mechanism of the animal skin to the wound through the analysis of the signal processing device to the signal that is transmitted and received by the smart wire I and II. The engineering structure can be actualized with continous and omnibearing damage state monitoring. The bionic monitoring sensing system has the advantages of convenient and simple operation, high efficiency, low cost and reliable result.

The invention discloses an enclosed pole post. The enclosed pole post comprises two end input pole posts and an intermediate output contact arms, wherein each end input pole post comprises a post body, an end contact arm, wiring terminals and a vacuum tube, wherein the end contact arm is formed at one side of the post body, the wiring terminals are correspondingly formed at an end part of the postbody, the vacuum tube is correspondingly arranged in the post body between the end contact arm and the wiring terminals, and the intermediate output arm is arranged between the two end input post posts and is electrically connected with the corresponding wiring terminals. In the enclosed pole post, the pole post correspondingly to each phase power is of an E-shaped structure, the two traditionalpost posts are respectively output, then are connected in parallel and are output from a middle part after integrating by direct casting, the arrangement number of an output end is reduced, parallel connection after the pole post is output is prevented, the arrangement of the mechanism is reduced, and the whole volume is effectively controlled.

The invention discloses a double-fastened unilateral bolt connector, which comprises a positioning bolt and a rigid washer pierced on the positioning bolt, a first positioning cylinder, a two-way cone head, a second positioning cylinder, a rigid washer and a first positioning There is clearance fit between the two cylinders and the screw rod of the positioning bolt, and both the bidirectional cone head and the second positioning cylinder are fixed on the screw rod of the positioning bolt through thread matching. The diameter of the central part of the two-way cone head is larger than the diameter of its two ends, and the first positioning cylinder and the second positioning cylinder are provided with a plurality of strip-shaped cracks extending along the axial direction of the positioning bolt on the circumference of one end of the two-way cone head. , the strip-shaped gap separates the first positioning cylinder and the second positioning cylinder from one end facing the two-way cone head to form a plurality of strip-shaped positioning pieces. When the invention is applied, it is connected by one-way fastening, which is convenient to operate, saves time and effort, and is convenient for the connection of closed cross-section members. It is not easy to loose when subjected to uneven force, and can ensure the stability of the connection structure.

The invention discloses a pressure-resistant detection device of a safety tool. The pressure-resistant detection device comprises a box body, wherein a flow guide part is arranged in the box body; a tool outlet is formed in a position below the box body; a rotary shaft with a rotary handle is arranged at the tool outlet; one end of the rotary shaft is sleeved with a grounding pull roll; the other end of the rotary shaft is sleeved with a high-pressure pull roll; pull plates and elastic conductive parts are arranged on both the grounding pull roll and the high-pressure pull roll; all of the box body, the flow guide part, the rotary shaft and the pull plates adopt insulated parts. According to the pressure-resistant detection device, the leakage current of the safety tool in a pressure-resistant test is measured in real time, the measured current is subjected to automatic judgment and warning, the detection efficiency is very high, a detection process can be finished in 8 hours only in comparison with a traditional device which finishes the detection process in three days, an automatic classification operation can be carried out, the problem of difficulty for accurately judging whether the safety tool is qualified is solved, and the personal safety of operators and the safe and stable running of a power grid are guaranteed.

The invention discloses a self-aligned silicon-germanium HBT device to monitor the doping test structure of the germanium-silicon base area after the diffusion of the emission area, which comprises: a rectangular active area, and a layer-by-layer active area located outside the active area. The surrounding rectangular etch-back protection area, base polysilicon, sacrificial emitter window and metal silicide barrier layer; in the length direction of the active region, from the inside to the outside are sacrificial emitter window, metal silicide barrier layer, The boundary of the etch-back protection area and the polysilicon in the base area; in the width direction of the active area, from the inside to the outside are the boundaries of the etch-back protection area, the base area polysilicon, the sacrificial emitter window and the metal silicide barrier layer. The invention can effectively monitor the P-type doping concentration of the epitaxial layer in the self-aligned silicon-germanium HBT device in the electrical test stage of the silicon wafer, can compare the P-type concentration of different menus in the research and development process, and can monitor the silicon-germanium in the mass production process Epitaxy process stability. The process method described in the invention is compatible with the original process, and is simple and easy to implement.

The invention relates to a silicon carbide MOSFET with high anti-surge current capability and integrated gate-controlled diode, which belongs to the technical field of power semiconductor devices. As the withstand voltage of silicon carbide power devices becomes higher and higher, the drift region becomes thicker and thicker, which makes more and more minority carriers recombine in the drift region during the bipolar conduction process of the PIN to form a recombination current. It will all be borne by the channel of the gated diode, which will greatly reduce the reliability of the gate oxide layer of the gated diode. In order to alleviate this problem, a parallel PNP BJT is integrated for the gated diode, and the reverse-biased PN junction is used to reduce the effective base region thickness and reduce the recombination of minority carriers in the base region, that is, reduce the generation of recombination current and alleviate the wave The current density of the channel region in the surge state improves the overall surge current resistance capability of the device.

The invention discloses an automatic withstand voltage detecting and automatic sorting device of safety equipment. The automatic withstand voltage detecting and automatic sorting device of the safety equipment comprises a box, current guide parts are arranged in the box, an equipment outlet is formed in the lower portion of the box, a rotating shaft is arranged at the position of the equipment outlet, the rotating shaft is connected with a gear motor arranged on the outer side of the box, one end of the rotating shaft is provided with a grounding poking roller in a sleeved mode, the other end of the rotating shaft is provided with a high-voltage poking roller in a sleeved mode, both the grounding poking roller and the high-voltage poking roller are provided with poking plates, both the grounding poking roller and the high-voltage poking roller are provided with elastic conductive components, the box, the current guide parts, the rotating shaft and the poking plates are all made of insulation materials, the equipment outlet is provided with a carrying component, an electric telescopic rod is arranged under the carrying component, and the grounding poking roller is connected with a current detection alarm device through a wire. Compared with the prior art, the automatic withstand voltage detecting and automatic sorting device can accurately measure leaked currents on the surface of the safety equipment, solve the problem that whether the safety equipment is qualified or not is difficult to judge accurately, and guarantee the personal safety of operating personnel and safe and reliable operation of power grids.

The invention discloses a semiconductor laser transmissibility analysis system, which comprises an optical transmitter unit, an optical receiver unit and a signal analysis unit. The optical transmitter unit and the optical receiver unit are arranged on one side or two sides of the medium to be inspected. The optical transmitter unit comprises a semiconductor laser and a first convergent lens; theend of the first convergent lens corresponding to the semiconductor laser is an inclined plane; the optical distance of the principal ray of the laser beam between the semiconductor laser and the first convergent lens is shorter or equal to 7mm; The A-A sectional plane of the middle part of the first convergent lens is a random geometric shape, and the diameter of the smallest cover circle of theA-A sectional plane is bigger or equal to 25mm; the light sent out by the semiconductor laser goes into the medium to be inspected after going through the first convergent lens. The invention also discloses another semiconductor laser transmissibility analysis system.

The invention relates to a CHB cascaded photovoltaic inverter circuit based on a three-phase multi-split transformer. According to the CHB cascaded photovoltaic inverter circuit based on the three-phase multi-split transformer, ground insulation voltage of the current photovoltaic system appliance is not changed, and safe and reliable running of the circuit in a photovoltaic power station can be realized by cascading outputs of a high-power CHB cascaded multi-level photovoltaic inverter through magnetic coupling. A winding on the low-voltage side of the circuit is connected with a plurality of independent inverter outputs with equal power, a split transformer which is used in the circuit is more economic, smaller in occupation area and more convenient in maintenance and management than a plurality of ordinary transformers. The current resistant value of a key device is reduced, and parallel connection of IGBTs (Insulated Gate Bipolar Translators) is avoided.