755 results about "Contact wire" patented technology

A connector for establishing electrical connection between a testing device and a test strip with a biological fluid thereon includes a contact pad on the test strip, and one or more contact wires in the testing device. When the strip is inserted into the testing device, part of the strip's end engages a contact portion of a contact wire and deflects it in a direction normal to the direction of insertion. In certain embodiments the radius of curvature (in the direction of insertion) of the contact portion is controlled to reduce abrasion of the strip by the wire. In other embodiments the radius of curvature (perpendicular to the direction of insertion) is controlled to reduce the abrasion of the strip by the wire. Sometimes the contact portion and/or contact pad is plated with a sacrificial material to reduce the coefficient of friction. In other embodiments various numbers of contacts receive the end of the strip substantially simultaneously, or are staggered in rows to distribute the resistance presented.

The semiconductor device according to the present invention includes: a semiconductor layer made of SiC; an impurity region formed by doping the semiconductor layer with an impurity; and a contact wire formed on the semiconductor layer in contact with the impurity region, while the contact wire has a polysilicon layer in the portion in contact with the impurity region, and has a metal layer on the polysilicon layer.

In accordance with the invention, there is provided a telecommunication jack that is free of cross-over sections, has cross-talk characteristics that approach Category 6 levels, and avoids the use of spring contact wires supported in a cantilevered fashion. This is achieved in a preferred implementation by spring terminal contact wires that are arch shaped. Each spring wire has a first leg having an end, a second leg having an end and an apex portion located between the first and second legs where the ends of the legs are supported on a wire board and each end makes electrical contact with separate conductive pads. When utilized in an operating circuit, one end and leg of a spring terminal contact wire is coupled to a conductive pad on the wire board that is in a current carrying signal path, and the other end and leg of that spring terminal contact wire is coupled to a different conductive pad on the wire board adapted for connection to a cross-talk compensating component. In accordance with the invention, both pads of the wire board are connected to a common spring terminal contact wire, although only one pad and one leg of the arch shaped spring wire may be in the current carrying signal path. The legs of the arch shaped spring terminal contact wires can be of equal or unequal length, the arch can be semi-circular, triangular or the like, and the conductive pads on the wire board of adjacent spring wire terminals can be either aligned or staggered in distance from the edge of the wire board.

The invention discloses a high-speed rail catenary geometric parameter detection non-contact compensation and Kalman filtering correction method. The method mainly comprises the steps that firstly, a video camera is triggered to collect video images at equal intervals through an encoder on a wheel set; the regions where target light spots appear in the images are predicted according to prediction strategies; the positions of the target light spots in the images are located according to the centroid method and the image morphology method; the angle of roll vibration is detected through an angle sensor, and compensation is performed on the vibration through coordinate transformation; contact wire height and pull-off values are figured out according to mapping transformation of the light spots from the position of an image coordinate system to the position of a world coordinate system; finally, detecting values are corrected through the Kalman filter equations. According to the method, the defects that the system is low in detecting accuracy, poor in real-time processing performance and the like are effectively overcome, the processing efficiency of the system is improved, and the requirements of high-speed rail catenary on-line detection for real-time performance and accuracy are well satisfied.

For a readily manufactured configuration of contact plugs for electrical plug connectors, which consists of a stable sleeve body, formed from a sheet material, and a contact spring plug, lying in this sleeve body and having a plurality of contacting means, such as contacting wires or contacting strips in linear or strip-shaped contact with a contact pin, which is to be introduced into the plug, it is proposed that the sleeve body be provided with at least one projection, which is directed transversely to the longitudinal axis of the contact plug and formed by at least one stamping and is in positive engagement with one of the two edge strips of sheet material, connecting the contact wires or contact strips of the contact spring plug with one another.

The invention discloses a process for preparing Cu-Cr-Zr alloys applicable to contact lines. The process comprises the following steps that alloys comprising 0.30 to 0.50 percent of Cu, 0.10 to 0.15 percent of Cr, 0.01 to 0.02 percent of Zr and Si are melt in a vacuum induction furnace, wherein alloy elements, namely Cr, Zr and Si, are added by master alloys; fine casting-state crystal grains and oversaturated matrix tissues having secondary dendritic crystal spaces are obtained by controlling solidification velocity and cooling velocity; rolling in fit, drawing deformation and annealing thermal treatment to the fine casting-state crystal grains and oversaturated matrix tissues are carried out so as to control deformation degrees and parameters for the thermal treatment; and the strain-hardening effect and the precipitation strengthening effect are organically combined. Therefore, the alloys have the advantages of excellent tensile strength, electrical conductivity and high-temperature resistant softening capacity and lower cost under the conditions of simplified process and the simpler apparatus and components, and are applicable to industrial production.

The invention discloses a copper-chromium-zirconium alloy contact wire and a production technique thereof. The copper-chromium-zirconium alloy contact wire is composed of copper, chromium, zirconium and inevitable impurity elements according to the set mass percentages. In preparation, the main technique comprises the steps of raw material preparation, up-drawing continuous casting, CONFORM continuous squeezing, primary cold machining, solution treatment, secondary cold machining, aging treatment and finished product drawing. According to the copper-chromium-zirconium alloy contact wire manufactured by the technique and materials, the matching of the contact wire raw materials is reasonably adjusted, the ratio of all element components in the contact wire is adjusted, and the special production technique is combined so that a high-strength high-conductivity contact wire product can be produced, wherein the weight of one single contact wire product is larger than two tons, the IACS electrical conductivity of the contact wire product is 75-90%, and the tensile strength of the contact wire product is 550-700 MPa; and the requirement of current electric railway high-speed development can be better met.

A hyperboloid contact socket is provided which comprises a tubular body of conductive material and preferably having at one end a lip defining an entrance aperture for receiving a mating pin terminal and having on the opposite end a termination of an intended configuration for attachment to a circuit board or other device or item. The tubular body contains a plurality of conductive wires conductively and permanently affixed at their respective ends torespective inner surfaces at or near the outer and inner ends of the body and disposed in an angular disposition to the longitudinal axis to form the shape of a single sheet hyperboloid. In one aspect of the invention a mandrel employed to orient the wires within the tubular body during fabrication of the contact socket remains attached to the tubular body after assembly of the contact wires and serves as a connecting pin to which various terminations can be attached.

The invention is concerned with the copper alloy touching line and the preparation method with choiceness integrative performance that uses to improve the using performance of the touching line of the cable technology field. It is: the copper alloy is as the material that the material melts with the following percentage weight, magnesium 0.05~ 0.35%, stannum 0.35~0.05%, total quantity of impurity is smaller than 0.10%, remainder is copper; the above material makes to be the touching line by the steps of smelting, heat preservation, casting pole, pressing, cold rolling, molding rolling. The index of the touching line achieves and overruns the international similar product level, such as the intensity, the conductivity, the elongation ratio, the reverse, repeating bending, convolution.

The invention relates to a line space geometric state parameter detecting method for a high-speed rail overhead line system and belongs to the field of fault detection of the electrification rail overhead line system. The invention aims to provide a line space geometric state parameter comprehensive evaluation method for the high-speed rail overhead line system. The method comprises the steps that a laser distance meter is used for measuring geometric parameter values of a line of the overhead line system and important equipment machines; the geometric parameter change law of the overhead line system under various external conditions is mastered in the aspects of line variation caused by temperature changes, change conditions of deviation of the overhead line along with wind speed, and friction deviation of the overhead line when trains with different time speeds pass; a theoretical model of the corrosion rate of the overhead line system in the air under the electrochemical polarization control condition is set up for studying the durability of the overhead line system to form a comprehensive evaluation system. Operation in a maintenance work area can be guided according to the change trend of the line space geometric parameters of the overhead line system, and the work efficiency of maintaining the overhead line system is improved.

The present invention provides a method for manufacturing a gate electrode and a contact wire simultaneously in a gate last process, comprising the steps of: forming a gate trench in an inter layer dielectric layer on a substrate; forming a filling layer in the gate trench and on the inter layer dielectric layer; etching the filling layer and the inter layer dielectric layer to expose the substrate, to thereby form a source/drain contact hole; removing the filling layer to expose the gate trench and the source/drain contact hole; forming metal silicide in the source/drain contact hole; depositing a gate dielectric layer and a metal gate in the gate trench; filling metal in the gate trench and the source/drain contact hole; and planarizing the filled metal. In accordance with the manufacturing method of the present invention, the gate electrode wire will be made of the same metal material as the contact hole such that the two can be manufactured by one CMP process. Such a design has the advantages of simplifying complexity of process integration on one hand and greatly strengthening control of defects by CMP process on the other hand, thereby avoiding the defects like erosion and dishing that may be produced between different metal materials.

The invention relates to a method and a system for restoring power after fault of a power distribution network containing DGs. According to the method, the DGs integrated in the power distribution network are processed in a classified manner according to the control method of the DGs and are divided into main power supplies and ordinary power supplies, wherein the main power supplies are controllable DGs, and the ordinary power supplies are random and uncontrollable DGs; and meanwhile, a standby contact wire is used as a main power supply, then, a multi-agent system for power restoration after fault of the power distribution network containing the DGs is established, and the optimum power supply scheme of a power-losing area is planned in a master-slave control mode. Compared with the prior art, the standby contact wire and the DGs integrated in the power distribution network are fully utilized in the restoration process, the power outage load is restored to the maximum, and the isolated island operation capacity of the DGs and randomness and volatility of output power are given full consideration, so that a restoration scheme can continuously and stably operate.

The invention discloses a method for preparing a copper magnesium alloy contact wire. In the method, an as-cast copper magnesium alloy structure is broken by continuous extrusion and is re-crystallized to obtain a tiny and even grain structure so as to make the copper magnesium alloy contact wire have the super fine-grain strengthening effect. The method comprises production process flows of continuous casting, continuous extrusion and cold machining molding. Compared with the conventional production process for the copper magnesium alloy contact wire, the method ensures that as-cast grains of an oxygen-free copper magnesium alloy casting pole molded by continuous casting are broken by the continuous casting and continuous extrusion processes, and are re-crystallized under the action of thermal deformation to form a copper magnesium alloy contact wire pole blank having a fine-grain structure, and the pole blank is subjected to cold machining to prepare the high-strength copper magnesium alloy contact wire having the super fine-grain strengthening effect. The production process is simple and reliable, and yield and quality completely meet the requirements of the conventional high-speed electrified railways.

Under condition for simulating vibration of vehicle body and dynamic action of contact line, the method carries out testing contact pressure between pantograph and bow net as well as dynamic change regulation between pantograph and contact wire. At different speed, and different operating condition of contact line, under dynamic coupling state between pantograph and contact line, the method obtains dynamic change regulation between contact pressure of bow net and vertical displacement of contact point so as to be able to estimate quality of pantograph for receiving current.

The invention discloses a real-time deviation correcting method for a precise cutting process of a diamond wire saw, which belongs to the technical field of precise cutting and machining of large-size artificial crystal. The method is characterized by comprising the following steps of: detecting the position offset of the diamond wire saw in real time by using a photoelectric position detecting element, and feeding back the position offset to a computer control system to control a workbench to perform corresponding position and angle adjustment so that the wire saw moves towards the direction of reducing the cutting deviation and the cutting deviation correction is realized. The method has the advantages that abrasion brought to contact detection and deviation correction of the wire saw can be avoided by adopting non-contact wire saw position detection and wire saw deviation correcting motion; and in addition, compared with a method for reducing cutting deviation by improving the precision of a machine tool, a deviation feedback-based deviation correcting strategy adopted by the invention has the advantage that: good deviation correcting effect can be achieved for wire saw precision cutting of a large-scale workpiece on the premise of not remarkably improving the manufacturing cost of a wire saw cutting system. Theoretically, the method can obtain highest deviation correcting precision of 17 microns.

The invention relates to the display technology of organic light emitting diodes, specifically to an OLED (organic light emitting diode) display module and an OLED spliced display screen with the OLED display module. The OLED display module comprises a substrate, an OLED structure used for generating OLED luminous pixels and a packaging layer used for packaging the OLED structure; and the substrate is a PCB (printed circuit board) substrate, wherein the OLED structure is arranged on the front side of the substrate, a wiring region connected with an external driving circuit is arranged on the back side of the substrate, contact wires corresponding to the OLED luminous pixels one by one are printed on the PCB substrate, and each of the contact wires is connected with the OLED structure at the position of the corresponding OLED luminous pixel, and is connected with the wiring region through the PCB substrate. According to the invention, a PCB is used as the substrate rather than a glass plate, and the existing non-luminous wiring region on the edge of the device is moved to the back side of the PCB substrate through leads of the contact wires, so that the non-luminous area of the device can be reduced, the splicing gap of the OLED spliced display screen spliced from the OLED display module can be greatly reduced, and the display effect of the screen can be well optimized.

A copper and magnesium alloy contact wire for railway electrification comprises a copper base and alloy metal, wherein the alloy metal comprises components in percentage by weight as follows: 0.5-0.6% of magnesium, 0.012-0.014% of zirconium, 0.012-0.014% of niobium, 0.005-0.008% of titanium and 0.02-0.04% of misch metal. A preparation technology adopts an upward continuous casting extrusion-cold rolling-stretching technology. The oxygen content of the prepared contact wire reaches an oxygen-free copper level, the grain is fine, the mechanical property is remarkably improved, the contact wire is uniform in a length direction, the flatness is good, the locomotive picking-up performance is good, the tensile strength, the elongation percentage, the grain size and the toughness are greatly improved when the copper and magnesium alloy contact wire is compared with a conventional wire, and the copper and magnesium alloy contact wire has wide popularization and application values in the high-speed railway electrification field.

Metal-based cable-shaped distributed optical fiber sensor, the central sensing fiber with a sheath is twisted and wrapped around the core by six surrounding metal wires to form a metal-based cable distributed optical fiber sensor. In particular, the sensing optical fiber with the sheath has the same diameter as the metal wire, and is in tight contact with the surrounding 6 metal wires. The outer steel wire bundle is wrapped around the central sensing optical fiber in a helical form, and the central sensing optical fiber is kept straight and not entangled. The optical fiber (cable) located in the center of the cable is tightly wound helically by six steel wires with matching diameters to form a metal cable body that can directly sense strain and temperature. The sensing optical cable of this structure not only senses the close contact between the optical fiber and the peripheral reinforced steel wire and the object to be measured, but also realizes the distributed monitoring of the stress and strain of the steel wire and the surrounding object to be monitored, and uses high-strength steel wire to protect the delicate The fragile sensing optical fiber has significantly improved its tensile strength, impact resistance and bending resistance.

The invention relates to a highly wear resistant copper silver alloy contact wire which is characterized in that in the highly wear resistant copper silver alloy contact wire, copper content is higher than or equal to 99.75% (percentage by weight), silver content is 0.08-0.10% (percentage by weight), indium content is 0.005-0.006% (percentage by weight), and tellurium content is 0.0008-0.010% (percentage by weight). The production method comprises the following processing steps: smelting in a vacuum melting furnace for the first time; smelting in a main frequency furnace for the second time; and then performing upward continuous casting, continuous extrusion, multi-roll rolling, and cold drawn molding to form the contact wire. According to the invention, the highly wear resistant copper silver alloy contact wire prepared by the method can meet the strength requirement and conductive performance of a high speed electric railway, and the service life can be prolonged.

The invention relates the constant tension compensation equipment, and belongs to the electrolyzed railway power supply technology field. The equipment comprises the spring on the substrate, and the said spring is the constant turning rule or linear changeable turning rule plane turbination spring with one end fixed opposite to the substrate and the other to the main shaft; the said main shaft is supported on the substrate and the shaft is rigidly set with the crown chute, the screw chute, the linear chute that are enwound by the steel wire lines. When the stress cable and the contacting wire lead the length change as the environmental temperature changing, the matching group of the springs and the chutes can be compensatively adjusted through the tension of the springs and maintain the constant tension on the stress cable and the contacting wires so as to meet the demand of the electrolyzed railway engineering. The invention has the strong points of tight structure, small volume, light weight and convenient equipment.

The invention discloses a preparation method of a Cu-Cr-Zr alloy contact wire, and belongs to the technical field of copper alloy processing and preparation. The contact wire with a cross section area of 110 to 150 mm2 is prepared through steps of melting, spray deposition and continuous extrusion, planetary rolling, aging, and drawing. In the provided method, the product structure property and overall dimension can be controlled in one technology. The Cu-Cr-Zr alloy contact wire prepared by the spray deposition and continuous extrusion method has the advantages of high strength, good conductivity, and excellent high temperature softening resistant property. The preparation method has the advantages that the process flow is short, the material utilization rate is high, the product performance can be guaranteed, at the same time, the production cost is reduced, the contact wire can be made into any length in theory, and the contact wire is suitable for industrial application.

The invention relates to a dynamic calculating method of wind-caused vibration and windage yaw of a contact net of an electrified railway. With the development of a high-speed railway, an influence degree on security of train operation by wind becomes more obvious; and effects of strong wind at a wind field and a wind gap as well as an effect of wind caused by train operation will enable large and complex vibration and windage yaw to occur at a contact net, so that a dynamic quality of high speed operation of a bow net will be influenced and bow net contact security will be threatened. The method comprises the following steps that: a wind tunnel test of a contact wire static force segment model is utilized to test an aerodynamic force parameter of a contact wire; a finite element model of wind-caused vibration and windage yaw of a contact net is established; average displacement of a contact net thread is calculated; and a spectral representation method is employed to simulate a turbulent flow wind speed time history and a time history analysis method is employed to calculate dynamic displacement of the contact net thread; and vertical average displacement and vertical dynamic displacement are superposed to obtain total displacement of wind-caused vibration of the contact net thread; and horizontal average displacement and horizontal average displacement are superposed to obtain total windage yaw of the contact net thread. According to the invention, a method is provided for dynamic calculation of wind-caused vibration and windage yaw of a contact net; and moreover, the method is suitable for application to power transmission line route.