149 results about "Equipotential" patented technology

Method and apparatus for providing sensor guard for data monitoring and detection system having a sensor for detecting one or more glucose levels, the sensor including a work electrode disposed on a base material, a reference electrode disposed on the base material, and a guard electrode disposed on the base material, where the guard electrode is maintained substantially at equipotential to the work electrode, and a transmitter operatively coupled to the work electrode and the reference electrode of the sensor for receiving said detected glucose levels, where the transmitter is further configured to transmit a respective signal corresponding to each of the detected glucose levels using a data transmission protocol including wireless data transmission protocols, to a receiver which is configured to receive the transmitted signals corresponding to said detected glucose levels is provided. The method and apparatus may also include insulin administration unit such as an insulin pump configured to be in data communication with the transmitter and / or the receiver for administering an appropriate insulin dosage based on the measured glucose levels.

An electrostatic trap such as an orbitrap is disclosed, with an electrode structure. An electrostatic trapping field of the form U′(r,φ,z) is generated to trap ions within the trap so that they undergo isochronous oscillations. The trapping field U′(r, φ,z) is the result of a perturbation W to an ideal field U(r, φ,z) which, for example, is hyperlogarithmic in the case of an orbitrap. The perturbation W may be introduced in various ways, such as by distorting the geometry of the trap so that it no longer follows an equipotential of the ideal field U(r, φ,z), or by adding a distortion field (either electric or magnetic). The magnitude of the perturbation is such that at least some of the trapped ions have an absolute phase spread of more than zero but less than about 2π radians over an ion detection period Tm.

An electrostatic trap such as an orbitrap is disclosed, with an electrode structure. An electrostatic trapping field of the form U′(r,φ,z) is generated to trap ions within the trap so that they undergo isochronous oscillations. The trapping field U′(r, φ,z) is the result of a perturbation W to an ideal field U(r, φ,z) which, for example, is hyperlogarithmic in the case of an orbitrap. The perturbation W may be introduced in various ways, such as by distorting the geometry of the trap so that it no longer follows an equipotential of the ideal field U(r, φ,z), or by adding a distortion field (either electric or magnetic). The magnitude of the perturbation is such that at least some of the trapped ions have an absolute phase spread of more than zero but less than about 2π radians over an ion detection period Tm.

The invention provides an ultra-high voltage power transmission line equipotential live working device. The ultra-high voltage power transmission line equipotential live working device comprises an unmanned machine and two insulation pulleys, wherein the two insulation pulleys respectively are an upper insulation pulley and a lower insulation pulley; each insulation pulley consists of a housing, a hook body, a roller and a hanging ring, the roller is arranged on the housing, a reverse hook body is arranged at the upper part of the housing, and the hanging ring is mounted at the upper part of the hook body; the unmanned machine is connected with the upper end of an insulation hanging rope, the lower end of the insulation hanging rope is connected with the hanging ring of the upper insulation pulley, a ladder rope is wound around the roller of the upper insulation pulley, the end part of the ladder rope is connected with the upper part of a ladder, and ladder hooks are arranged at the upper part of the ladder. By adopting the ultra-high voltage power transmission line equipotential live working device provided by the invention, a person can directly reach a repair line position to perform a repair operation and does not need to start to move from a pole, so that a lot of labor is saved; only one person can finish operations of the whole device to complete the repair operation, so that the labor is reduced.

The invention is a hot-line job equipotential entering method of A.C. extra or ultrahigh voltage transmission line and the electric displacement rod. The method is characterized in that the operating staff wears extra or ultrahigh voltage A.C. hot-line job complete set barrier clothes and accesses the charged body by the insulated delivery vehicle after connecting the electric displacement rod and the barrier clothes, when operating staff is 0.4-0.6m from the charged body, the operating staff use the special electric displacement rod to contact the charged body in order to transfer electric potential and enter the equipotential. The electric displacement rod comprises a lead-in wire 7, a connector 8, a metallic rod 9 and a crampon 10, wherein the lead-in wire 7 and the crampon 10 are connected with two ends of the metallic rod 9 separately, the connector 8 is connected with the other end of lead-in wire 7, the metallic rod 9 is circular and has smooth surface. The invention reduces impulse current substantially, which improves the safety of entering the equipotential, extends the durability of barrier clothes, and improves the working efficiency of hot-line job.

The invention provides an equipotential closed-loop electrical energy meter testing device, which includes a program controlled three phase power source, a three phase multifunction standard meter, a meter hanging rack, an error calculation / display apparatus, a control system equipped with control software, and a precision current mutual inductor CT insulating the current of the electric energy meter connected to the meter hanging rack, wherein, the program controlled three phase power source outputs voltage to the three phase multifunction standard meter and the electrical energy meter to be tested connected to the meter hanging rack; the program controlled three phase power source outputs current to the three phase multifunction standard meter and the electrical energy meter to be tested through the precision current mutual inductor CT; the error calculation / display apparatus is connected with the three phase multifunction standard meter and the electrical energy meter to be tested; the control system is connected with the program controlled three phase power source, the three phase multifunction standard meter, the electrical energy meter to be tested and the error calculation / display apparatus. The equipotential closed-loop electrical energy meter testing device provided by the invention can verify more electrical energy meters at one time, thereby improving work efficiency of the measurement department and reducing error.

The invention relates to an MMC-HVDC direct-current short-circuit fault ride-through method based on the direct-current bus bipolar equipotential, and belongs to a direct-current fault protection method of a flexible direct-current power transmission system. According to the method, the double-pole potential of the MMC direct-current side bus is controlled to be approximately equal, so that the short-circuit fault current of the direct-current side is close to zero, and the direct-current bipolar short-circuit fault ride-through can be realized under the condition that the MMC is controllable. The basic principle is that after the direct-current short-circuit current is detected, a fault operation mode is adopted, and on and off states of upper and lower three-phase bridge arms of the MMC three-phase are selected according to the polarity of the power grid voltage, the MMC circuit topology is equivalent to the chain type star topology, and the three-phase conducted upper and lower bridge arm voltage is controlled to withstand the voltage of the power grid, and the double-pole electric potential of the direct-current bus is approximately equal, the direct-current side short-circuit fault current is close to zero. An alternating-current circuit breaker is not needed, and the capacitor voltage balance of the MMC sub-module is maintained during the fault ride-through period, and after the fault is eliminated, the power transmission can be rapidly restored.

An array substrate for use in an X-ray sensing device is fabricated using an etching stopper that enables good control of the etching process and that prevents over-etch of drain electrodes and second capacitor electrodes while forming contact holes and a cutting furrow. The etching stopper is located in a tiling portion that is utilized for tiling substrates to form a large-sized X-ray detector. During fabrication, gate lines can have gate-protruded portions located near the etching stopper, and the etching stopper can have stopper-protruded portions near the gate lines. The stopper-protruded portions electrically connect to the gate-protruded portions through gate line contact holes such that the etching stopper and the gate lines have equipotentials. This can reduce static electricity damage.

The invention relates to a flexible array pressure measurement sensor based on piezoresistive effect. The sensor herein includes a row control circuit, a touch element sensing unit, a column control circuit, a same direction amplifier circuit, a filter circuit, a micro-control circuit and a control communication port which are successively connected, and also includes an equipotential shielding circuit. The row control circuit, the equipotential shielding circuit, and the column control circuit are connected to the micro-control circuit. The invention also discloses a measurement method. The method herein includes the following steps: representing the forces at different positions in the touch element sensing unit with variations of different resistances, a measurement point switching circuit selecting to connect different sensitive units to a signal modulation circuit through a row and column simulation circuit, converting the variation of the resistances of the sensitive units to voltages, and obtaining a pressure by calibrating the corresponding relationship between the voltages and voltages. According to the invention, the sensor and the measurement method herein, based on theplan for distributing the sensitive units in rows and columns, can measure the distributed force on the surface with a density of 22 point / cm<2>, and overcome the low density of pressure measurement sensors at home and abroad and too slow detection velocity.

The invention discloses a method for improving breakdown voltage of LDMOS devices, in the process of a front-segment preparation grid structure by adopting a conventional method, a grid structure is arranged above the area of an LDMOS device channel, is extended above a high-voltage drifting injection area and is separated from a field oxide area of the high-voltage drifting injection area; in the rear-segment process, a dielectric layer is sedimentated firstly, and then a conductor layer is sedimentated, and then the dielectric layer and the conductor layer are etched, the dielectric layer and the conductor layer above the high-voltage drifting injection area are kept to form a suspending grid electrode electric-conduction equipotential body, one end of the equipotential body is arranged on the field oxide area in the high-voltage drifting injection area, and the other end is arranged above the grid structure and between one side of a channel area and one side of a beak part of the field oxide area in the high-voltage drifting injection area. The method can be integrated in the PIP, MIP or RPOLY process and can be integrated in a metal connecting line process. The method in the invention can obviously improve the breakdown voltage of the LDMOS devices.

An array substrate for use in an X-ray sensing device is fabricated using an etching stopper that enables good control of the etching process and that prevents over-etch of drain electrodes and second capacitor electrodes while forming contact holes and a cutting furrow. The etching stopper is located in a tiling portion that is utilized for tiling substrates to form a large-sized X-ray detector. During fabrication, gate lines can have gate-protruded portions located near the etching stopper, and the etching stopper can have stopper-protruded portions near the gate lines. The stopper-protruded portions electrically connect to the gate-protruded portions through gate line contact holes such that the etching stopper and the gate lines have equipotentials. This can reduce static electricity damage.

The invention discloses an AC high voltage live line work shielding thermal insulation suit, belonging to the live line work shielding suit. A cap, a coat and trousers are connected together to form Siamese clothes, two gloves are connected with the cuffs of the coat of the Siamese clothes through electric conductors, conductive socks are connected with the trousers bottoms of the trousers of the Siamese clothes through electric conductors; each part of the shielding thermal insulation suit adopts four-layer structure, the outermost layer is conductive cloth, the second layer is flame-resistant cloth, the third layer is carbon fiber thermal insulation mat, the innermost layer is lining cloth; and the second layer flame-resistant cloth and the third layer carbon fiber thermal insulation mat compose a thermal insulation flame-resistant layer. The beneficial effect of the invention is as follows: the shielding thermal insulation suit can protect people from high voltage electric field and current and can protect people from a high temperature of about 200 DEG C. Therefore, the suit can meet the working demands of electrified lead-repairing and other equipotential on the high voltage electric power line of the rate capacity lead.

The invention discloses an equipotential charged work hanging basket method entry simulation system for a high-voltage power transmission line. The system mainly comprises a process simulation module,a distance calculation module, an information display module and an operation simulation module. The invention furthermore discloses an equipotential charged work hanging basket method entry simulation method for the high-voltage power transmission line. The method comprises the following steps of S1, by establishing a three-dimensional real scene platform of the high-voltage power transmission line, simulating a moving track of a hanging basket and displaying the moving track in a three-dimensional scene; S2, calculating a combinational gap in a moving track process of the hanging basket, and displaying a combinational gap value in the three-dimensional scene when the hanging basket stops moving; and S3, generating a charged work simulation scheme for guiding field arrangement. The simulation system capable of simulating charged work hanging basket method entry of the high-voltage power transmission line is provided for charged work personnel; based on the accurate three-dimensionalreal scene platform, the deficiencies of conventional power transmission line-based charged work operation mode and display are effectively made up for; and the system and the method have practical significance.

The invention is a multi-dimension chromatogram, electrophoresis separation and detecting system based on array capillary equipotential focus. The system integrates the reverse light phase chromatogram and capillary pipe equipotential focus, the first dimension is the capillary pipe reverse chromatogram carrying high efficient separation to the complex protein mixture, and fraction separated flows into the second dimension-capillary pipe equipotential focus to be separated with higher efficiency and high flux quickly. Compared with single-channel multi-dimension chromatogram system, the design of the array is more proper to the analysis of complex sample with large scale, and the peak capacity of the two-dimension system can be upgraded further. It is excellent at aspect of sample condensing and low rich degree protein detection, and the CIEF can be connected with the mass spectrum online to carry on sample identification.

The invention relates to a semiconductor element with an improved terminal and a manufacturing method thereof. A terminal protection area of the element comprises a first flute, wherein a first insulating medium layer is filled in the first flute, and a second insulating medium layer is arranged on the first flute and covers the notch of the first flute and the terminal protective area; a first metal layer covers the second insulating medium layer above the first flute, and is connected with a gate metal or source metal so as to keep a zero electric potential when an MOS element is a reverse blocking state; the first flute is provided with three wire holes corresponding to the side away from an active area, a second metal layer covers the second insulating medium layer and is filled in the three wire holes; and the second metal layer is connected with a first conductive substrate layer by a second conductive layer to form an equipotential. The element has the advantages that: the pressure resistance of the element is ensured; the area of the terminal protection area is controlled; and the manufacturing cost is reduced.

A system and method for providing a single mode VCSEL (vertical cavity surface emitting laser) component (100) is disclosed, comprising a semiconductor substrate (102) having a lower surface and an upper surface, a bottom electrical contact (104) disposed along the lower surface of the substrate, a lower mirror (106) formed of n-type material and disposed upon the upper surface of the substrate, an active region (108) having a plurality of quantum wells disposed upon the lower mirror portion, an upper mirror (110) formed from isotropic material and disposed upon the active region, an equipotential layer (112) disposed upon the upper mirror portion, a first upper electrical contact (120) disposed upon the equipotential layer, a second upper electrical contact (122) disposed upon the equipotential layer at a particular distance (124) from the first upper electrical contact, a first isolation region (126) disposed beneath the first upper contact and traversing the equipotential layer, the upper mirror, the active region, and the lower mirror, a second isolation region (128) disposed beneath the second upper contact and traversing the equipotential layer, the upper mirror, the active region, and the lower mirror, and an insulating layer (114, 116) interposed between the upper mirror and the equipotential layer and adapted to form therebetween an aperture (118) of smaller dimension than the particular distance between the first and second upper contacts.

In order to provide, as a lighting means for a pixel including a driving TFT and an EL element, a driving device of a light emitting display panel which can dissolve respective technical problems which occur in cases where respective constant voltage driving and constant current driving techiniques are adopted, a light emitting power holding capacitor (C2) is connected in series to the driving TFT (Tr2) and the EL element (E1). A diode (D1) for charging electrical charges in the capacitor (C2) and a switching element (SW2) for supplying current to the diode (D1) are provided. By an ON operation of the switching element (SW2) both ends of the capacitor (C2) is subjected to a charge operation so as to become equipotentials. By an OFF operation of the switching element (SW2), driving current flows in the EL element (E1) via the driving TFT (Tr2). The amount of current flowing in the EL element (E1) is controlled by the repeat frequency of ON / OFF of the switching element (SW2).

The present invention belongs to the technical field of electric lifting machine and live line operation and particularly relates to a transmission line unmanned aerial vehicle and electric lifting device combined live working method. An unmanned aerial vehicle is used to suspend an insulation rope to a conductive wire, a semi-static rope is dragged through the insulation rope to suspend the semi-static rope to the conductive wire, an equipotential electrician operates a small fly people machine to enter a strong electric field and reach a live line to carry out defective elimination operation. The method comprises the steps of setting the unmanned aerial vehicle and the insulation rope, checking the unmanned aerial vehicle, throwing the rope through the unmanned aerial vehicle, dragging the semi-static rope, installing the semi-static rope, installing the small fly people machine and a buffer self-locking device, carrying out equipotential electrician checking and connection, lifting the equipotential electrician by the small fly people machine and completing potential transfer, hanging a hard insulation ladder head and carrying out translocation, entering into equipotential to hang an extension rope to eliminate a defect, and exiting the equipotential. An operator is lifting by using the small fly people machine to reach a live line defective position, climbing an iron tower and a soft ladder to enter and leave the strong electric field is not needed, the safety risk is small, the working efficiency is high, and the operation is simple.

Electrodes, methods, and devices are provided for incapacitating or immobilizing a target. More particularly, the electrodes, methods, and devices disclosed provide for a reduced spacing between equipotentials near an electrode and reduced localized cellular damage created by an electrical exposure from an electrode. In one exemplary embodiment, an electrode is configured to be approximately flat, which in turn, at least, creates a greater surface area and thus reduces spacing between equipotentials. In another exemplary embodiment, an electrode is configured to include a curvature, which in turn, at least, allows the electrode to intent or dimple the skin less than in current conventional designs. Devices incorporating these electrodes are also provided, as are various techniques both for manufacturing such devices and for incapacitating a target.

A voltage sensor includes an insulator with mutually insulated electrodes embedded therein. The electrodes are coaxial and cylindrical and overlap axially along part of their lengths. They are mutually staggered and control the surfaces of electric equipotential such that there is a substantially homogeneous electric field outside the insulator and a substantially homogeneous but higher field within a sensing cavity within the insulator. A field sensor is arranged within the sensing cavity to locally measure the field. This design allows for the production of compact voltage sensors for high voltage applications.

The present invention relates to a static electricity prevention type liquid crystal display panel for preventing static electricity flowing in through a pad part. A static electricity prevention type liquid crystal display panel according to an embodiment of the present invention includes a picture display part having a plurality of liquid crystal cells; a signal pad part applying a drive signal to be inputted to signal lines of the picture display part, and wherein the signal pad part includes a plurality of pads connected to the signal lines; and a static electricity prevention circuit having a thin film transistor with a floating gate for connecting the pad with a shorting bar by a static electricity flowing into the pad for the pad to form an equipotential with respect to the static electricity.

The invention provides an IGBT chip and a preparation method thereof. The IGBT chip comprises a chip front face and a chip back face. The chip front face comprises a cell area, a gate area, an equipotential ring area and a terminal structure area. The cell area comprises a plurality of mutually parallel cells. Each of the cells comprises an emitter electrode. The chip back face comprises a collector region, and a local minority injection efficiency control area is arranged in at least one corresponding collector area under the emitter electrode, a corresponding collector area under the gate area, a corresponding collector area under the equipotential ring area and / or a corresponding collector area under the terminal structure area. The local minority injection efficiency control area can control the minority injection efficiency in the area. Through the IGBT chip provided by the invention, the contradictory relationship between conduction loss and turn-off loss can be alleviated, and the reduction of the turn-off loss of the IGBT chip as far as possible in the condition of not increasing the conduction loss is realized.

An array substrate for use in an X-ray sensing device is fabricated using an etching stopper that enables good control of the etching process, and an electrode that prevents damage caused by static electricity generated during a dry-etching step. During fabrication, the array substrate includes a plurality of gate lines that are all electrically connected to an electrode pattern via gate line extensions and gate line contact holes. The electrode pattern causes the gate lines to have equipotentials, which reduces static electricity induced defects.

A voltage sensor includes an insulator with mutually insulated electrodes embedded therein. The electrodes are coaxial and cylindrical and overlap axially along part of their lengths. They are mutually staggered and control the surfaces of electric equipotential such that there is a substantially homogeneous electric field outside the insulator and a substantially homogeneous but higher field within a sensing cavity within the insulator. A field sensor is arranged within the sensing cavity to measure the field. This design allows for the production of compact voltage sensors for high voltage applications.

The invention discloses a detection device and a detection method for one-point grounding of the neutral line of the secondary coil of a voltage transformer. Between; adjust the resistance value of the sliding wire rheostat to obtain the corresponding current reading in the ammeter; connect the voltmeter between the neutral line of the secondary coil of the voltage transformer and the equipotential ground network; use the voltmeter to detect the sliding wire The variation of the resistance value of the varistor; the discharge gap and the knife switch are respectively connected between the neutral line of the secondary coil of the voltage transformer and the equipotential ground network, the discharge gap is used for overvoltage protection, and the knife switch is used to control the connection in the test On and off of the location. The invention is suitable for detecting the reliability of the grounding of the secondary circuit of the voltage transformer during operation, improves the correct rate of relay protection actions in the substation, and ensures safety.

The present invention relates to a bidirectional IGBT device and a manufacturing method thereof, and belongs to the power semiconductor device technology field. According to the present invention, by introducing an electrode equipotential with a metal electrode and a dielectric layer at the bottom and the side surface of a gate electrode in a trench in the right backside of the device, and on the condition of not influencing the threshold voltage and the conduction of the IGBT device, the symmetrical forward and reverse characteristics are realized, the forward and reverse switching speed, a short circuit safe working region and a breakdown voltage of the bidirectional IGBT device are improved, the switching loss and the saturation current density of the device are reduced, the carrier concentration distribution of a whole N-type drift region, the compromise of the forward conduction voltage drop and the switching loss and the concentration of an electric field at the bottom of the trench are improved, and further the reliability of the device is improved. The bidirectional IGBT device manufacturing method provided by the present invention does not need the additional process steps, and is compatible with a conventional bidirectional IGBT manufacturing method.

The invention discloses an equipotential head suspension micropressure drip irrigation equipment, comprising a main tube, a branch tube, a hair canal, a suspension micro path emitter, a water tank and a main tube water pressure regulating mechanism. The main tube water pressure regulating mechanism comprises a water regulating tank and a constant water level tank. A one-way inlet valve is arranged between the water regulating tank and the constant water level tank. A water supply tank is arranged in the water regulating tank. The water tank is set at the upper end of the water regulating tank and connected with the water regulating tank by a water supply switch to make the water level of the constant water level tank constant. The water outlet of the constant water level tank is connected with the water inlet of the main tube. The water inlet of the hair canal is connected with the water outlet of the branch tube. The hair canal is hung with hoses with different length in the perpendicular direction. The micro path emitter is arranged on the hose. Compared with the prior art, the device has simple structure, low cost, energy-saving, convenient application and maintenance, constant outflow of the micro path emitters, good irrigation effect and is suitable for applying in wide countryside.

According to one embodiment of the present invention, a power relay assembly driving apparatus comprises: a first relay unit which switches a connection between a first terminal of a battery unit and a first terminal of an inverter unit having a capacitor; a second relay unit which switches a connection between a second terminal of the battery unit and a second terminal of the inverter unit; a first switching unit connected in parallel to the second relay unit between the second terminal of the battery unit and the second terminal of the inverter unit; a second switching unit connected in parallel to the second relay unit between the second terminal of the battery unit and the second terminal of the inverter unit; and a battery management system (BMS) which controls the first relay unit and the first switching unit in order to pre-charge the capacitor with the power of the battery unit, controls the second relay unit in order to normal-charge the capacitor with the power of the battery unit and then controls the first switching unit in order to end the pre-charging of the capacitor, controls the second switching unit upon a power cutoff of the battery unit in order to form an equipotential between the second relay unit and the second terminal of the inverter unit, and controls the second relay unit in order to electrically separate the second terminal of the battery unit and the second terminal of the inverter unit from each other.

The invention discloses a photovoltaic solar building lightning protection facility construction method which comprises the steps of photovoltaic solar building lightning protection grounding device construction, photovoltaic solar building lightning protection down-lead installation construction, photovoltaic solar building lightning protection lightning arrester installation construction, photovoltaic solar building lightning protection equipotential connection and installation construction, photovoltaic solar building lightning protection shielding device installation construction, photovoltaic solar building lightning protection integrated wiring installation construction, photovoltaic solar building lightning protection surge protection device installation construction and the like. The photovoltaic solar building lightning protection facility construction method has the advantages of convenient construction and good construction effect. Normal operation of photovoltaic solar buildings is ensured, cost is saved, the use of normal energy is reduced, CO2 emission is reduced, the method plays a very good role in improving the environment and alleviating the contradiction between energy supply and demand, and obvious social benefits are fully showed.

The invention provides an optically controlled vacuum switch module and relates to a power high-voltage switch. The optically controlled vacuum switch module is characterized in that based on the prior vacuum switch and the prior photoelectric technology, the optically controlled vacuum switch module is constituted; an operating mechanism is directly connected with interrupter equipotential; a battery and a capacitor controlled by an optoelectronic device are used to supply power to the mechanism; and an induction power coil gets electricity from a system to supplement the battery and the capacitor, controls movements of the mechanism at a cool end through optical fiber, and operates a vacuum interrupter to complete current connection and current breaking. A certain amount of optically controlled vacuum switch modules can be connected in series according to voltage grades to constitute a high-voltage level vacuum switch, so as to replace the prior SF6 gas high voltage switch with an greenhouse effect; and the optically controlled vacuum switch module has the advantages of simple structure and convenient realization in industry, and fiber control signals can be directly controlled by a computer of the power system.