旋钮液晶家用电梯控制器

Image acquisition system and image acquisition method

The invention discloses an image acquisition system and an image acquisition method. According to the method, the high-quality characteristics of high detection precision and low cost based on the black-and-white camera are reserved, and meanwhile, on a visual detection system based on the black-and-white camera, a color image is synthesized by using pictures which are respectively imaged by three primary colors of red, green and blue and is used for detecting chromatic aberration, so that the technical effect of imaging the color image by the black-and-white camera is realized; the problem that flaws, color types and product depth-of-field height can be detected at the same time is solved; meanwhile, according to the black-and-white camera, the camera and the light sources are synchronously controlled through pre-frequency-division, and under one-time signal input, the camera can achieve a multi-time shooting effect under the conditions that different light sources are lightened and exposure ...

SOLAR PHOTOVOLTAIC ASSEMBLY CAPABLE OF EFFECTIVELY IMPROVING OUTPUT POWER

A solar photovoltaic assembly capable of effectively improving output power comprises a series of solar cell pieces connected in series. At least two independent metal contact gate line units are disposed on the front side of each cell piece, and the metal contact gate line units are connected in parallel. The solar photovoltaic assembly of the present invention can eliminate, to the greatest extent, the influence of a defective cell piece on the whole assembly in the prior art, and maximize the output power of the solar assembly on the premise of ensuring that good electrode contact and connection are formed with the metal gate lines on the surfaces of the cells, thereby implementing the maximum conversion of the solar energy and the best power output.

Short circuit protection device

According to the circuit short-circuit protection device provided by the utility model, the triode and the field-effect tube control circuit are used for replacing the existing isolating switch, so that whether a short-circuit fault occurs in a line can be quickly judged, the response is quick, the circuit can be quickly cut off when the short-circuit fault occurs, and a circuit burning accident is prevented; the circuit can be tried to recover after the circuit is turned off for a period of time, so that the circuit can continuously run for a period of time; the protection device is simple in circuit structure, can be realized only by diodes, triodes, operational amplifiers, capacitors, resistors and field-effect transistors, is low in cost and easy to realize, carries out overcurrent protection and rapid discharge by using the hardware protection part, carries out circuit recovery and fault diagnosis by using the software protection part, and has high reliability through software and ...

Quantitative monitoring device for coolant pressure-bearing boundary leakage and monitoring method thereof

The invention relates to the technical field of nuclear power station radiation monitoring, in particular to a coolant pressure-bearing boundary leakage quantitative monitoring device and a monitoring method thereof. The coolant pressure-bearing boundary leakage quantitative monitoring device comprises a sampling container, a detector assembly, a beta-gamma digital coincidence measurement device, an upper computer, an air pump, filter paper, a plurality of data lines and a plurality of pipelines, the detector assembly and the filter paper are respectively arranged in the sampling container, the detector assembly is connected with the beta-gamma digital coincidence measurement device through a data line, and the beta-gamma digital coincidence measurement device is connected with the upper computer through a data line. According to the method, the activation product 18F is selected as a radioactive tracer agent, and the leakage rate of the pressure-bearing boundary of the coolant is finally ...

Range connection method and system of wide-range nuclear measurement device

The invention discloses a measuring range joining method and system of a wide-measuring-range nuclear measurement device, and relates to the technical field of nuclear measurement. Performing counting rate consistency processing on each measurement channel of the wide-range nuclear measurement device; calculating the reactor period of each measurement channel according to the counting rate after the consistency processing; dividing an effective range upper limit interval, an effective range lower limit interval and an effective range repetition interval according to the counting rate of each measurement channel; and finally, determining the measurement channel of each interval based on the counting rate of each measurement channel and the reactor period. When the two measurement channels are effective, reactor periods of the two channels are calculated at the same time, and the reactor period of the measurement channel with the large counting rate is selected as a final reactor period value ...

LOCAL ALUMINUM BACK SURFACE FIELD SOLAR BATTERY WITH TWO LIGHT-PERVIOUS SURFACES, AND PREPARATION METHOD THEREFOR

A local aluminum back surface field solar battery with two light-pervious surfaces comprises a silicon substrate; an emitting electrode, a front antireflection passive film and a front electrode all disposed on a front surface of the silicon substrate; and a back passive film, a back surface field and a back electrode all disposed on a back surface of the silicon substrate. The back surface field is a local aluminum back surface field. A hole or a groove is formed in the back passive film, a region where the hole or the groove is formed is covered with linear aluminum paste, part of the back passive film is reserved not to be covered with the aluminum paste, and a local aluminum back surface field is formed in the region where the hole or the groove is formed after sintering. The local aluminum back surface field is in communication with the back electrode. The back passive layer (film) of the solar battery is not completely covered with the aluminum paste, the battery can absorb part of ...

Primary loop pressure boundary leakage radiation monitoring device and monitoring method thereof

The invention relates to the technical field of nuclear power station radiation monitoring, in particular to a primary loop pressure boundary leakage radiation monitoring device and a monitoring method thereof. The primary loop pressure boundary leakage radiation monitoring device comprises a sampling container, two LaBr3 detectors, a gamma-gamma digital coincidence measuring device, a radiation monitoring processing cabinet, a plurality of data lines and a plurality of pipelines, the two sides of the sampling container are each provided with a LaBr3 detector, the two LaBr3 detectors are connected with the gamma-gamma digital coincidence measuring device through data lines, and the gamma-gamma digital coincidence measuring device is connected with the radiation monitoring processing cabinet through a data line. The characteristics of long half-life period of 18F, positron annihilation and the like are utilized, the gamma-gamma digital coincidence measurement technology is applied to primary ...

CRYSTALLINE SILICON SOLAR CELL AND PREPARATION METHOD THEREFOR, AND PHOTOVOLTAIC ASSEMBLY

The present disclosure relates to the technical field of solar cells, and relates to a crystalline silicon solar cell and a preparation method therefor, and a photovoltaic assembly. The crystalline silicon solar cell comprises a crystalline silicon substrate, a passivation layer that is disposed on the crystalline silicon substrate and that is provided with through holes, a carrier collection layer that is disposed on the passivation layer, and electrodes that contact the carrier collection layer; the carrier collection layer contacts the crystalline silicon substrate by means of the through holes on the passivation layer. In the described crystalline silicon solar cell, through holes are provided on the passivation layer, and the carrier collection layer contacts the crystalline silicon substrate by means of the through holes on the passivation layer. On the basis of ensuring a good surface passivation effect, carriers may pass through interfaces at which the crystalline silicon substrate ...

SELECTIVE EMITTER PREPARATION METHOD, SOLAR CELL AND PREPARATION METHOD THEREFOR

The present invention relates to the technical field of solar cells. Disclosed are a selective emitter preparation method, a solar cell and a preparation method therefor. The selective emitter preparation method comprises: obtaining an N-type silicon wafer, and depositing a mask layer on a front face thereof; forming a window at a position, corresponding to a metal gate line, of the mask layer; performing a diffusion treatment, so as to form a heavily doped region at the position corresponding to the window; removing the mask layer; and performing a diffusion treatment on the N-type silicon wafer after the mask layer is removed, so as to form a lightly doped region on the front face of the N-type silicon wafer after the mask layer is removed, so as to obtain a selective emitter. In the present application, a selective emitter is formed on a surface of an N-type silicon wafer by means of forming a mask layer and performing a diffusion treatment twice; and the sheet resistance of a heavily ...

Launch-boosted large-diameter high-speed valve and water entry test device thereof

The invention provides a launch-boosted large-diameter high-speed valve and a corresponding water entry test device and a design method thereof, and belongs to the technical field of high-speed water entry tests. The high-speed valve comprises a sealing piece, the sealing piece is tightly attached to the water target window through an explosive bolt, the launching device is connected with the sealing piece through a push rod, and the launching device is located on the outer side of the water target; the launching device and the explosive bolt are respectively connected with the controller; the launching device comprises a launching base used for installing a gun barrel, and an electric firing mechanism is arranged at the closed end of the gun barrel and connected to the controller. A push rod is embedded in the open end of the gun barrel; propellant powder is embedded between the push rod and the closed end of the gun barrel, and the electric firing mechanism is used for firing the propellant ...

TOPCon battery and manufacturing method thereof

The invention discloses a TOPCon battery and a manufacturing method thereof. The method comprises the following steps of: obtaining a semi-finished product of the TOPCon battery, the semi-finished product comprising a silicon wafer, a tunneling oxide layer located on the back surface of the silicon wafer, a doped polycrystalline silicon layer, a back surface passivation layer, an emitter layer located on the front surface of the silicon wafer and a front surface passivation layer; grooving the front of the semi-finished product at positions corresponding to front fine grid lines to form slotted holes; preparing back main grid lines and back fine grid lines on the back of the semi-finished product; preparing aluminum fine grid lines in the slotted holes in an electroplating mode; and preparing front main grid lines on the front of the semi-finished product, and sintering the semi-finished product to obtain the TOPCon battery. According to the method, the aluminum fine grid lines are formed ...

Steel with low content of tiny inclusions and preparation method thereof

The invention particularly relates to steel with low tiny inclusion content and a preparation method thereof, and belongs to the technical field of steel preparation. The method comprises the steps that molten iron is subjected to converter smelting, and converter molten steel is obtained; the converter molten steel is refined; refined molten steel is obtained; continuously casting the refined molten steel to obtain a steel billet; refining slag is added in the tapping process of converter smelting, the refining slag comprises lime, and the using amount of the lime meets the set amount so that the CaO/Al2O3 ratio of the slag can be increased; adsorption and removal of inclusions are promoted by controlling the adding amount of the lime and increasing the ratio of CaO to Al2O3 in the slag, removal of the tiny inclusions is enhanced, and the problem that the content of the tiny inclusions in current steel is large is solved.

Integrity testing equipment and method for heavy haul train

The invention relates to an integrity test device and method for a heavy haul train. The device comprises a train-mounted device and a train tail device. The vehicle-mounted equipment comprises a vehicle-mounted main control unit, and a vehicle-mounted wireless communication module, a vehicle-mounted satellite receiving module and a vehicle interface unit which are respectively connected with the vehicle-mounted main control unit; the train tail equipment comprises a train tail main control unit, and a train tail wireless communication module, a wind pressure detection module, a train tail satellite receiving module and an exhaust module which are respectively connected with the train tail main control unit; the train integrity is established after the train-mounted equipment and the train tail equipment interact, and after the train integrity is established, the train integrity state is monitored in real time by the train-mounted equipment. Compared with the prior art, the method has the ...

Battery cell extrusion assembly and battery cell extrusion method

The invention discloses a battery cell extrusion assembly and a battery cell extrusion method, the battery cell extrusion assembly comprises a support device and an extrusion rotation device, the extrusion rotation device is arranged on the support device, and a battery cell flowing below the extrusion rotation device can be recovered to an original position after extrusion rotation. Through the cell extrusion assembly disclosed by the invention, the working efficiency can be improved.

Machining tool for valve electromagnet shell and using method of machining tool

The invention discloses a valve electromagnet shell machining tool and a using method thereof.The valve electromagnet shell machining tool comprises an electromagnet shell, a mounting shell is arranged on the lower surface of the electromagnet shell, an adapter is arranged in the mounting shell, and a mounting assembly used for mounting the adapter in the mounting shell is arranged on the outer side of the adapter; a box body is arranged on the lower surface of the adapter, so that a sliding sleeve ascends on a second rotating rod, a connecting plate slides in a sliding groove, so that the sliding sleeve ascends on the second rotating rod, as the sliding sleeve ascends on the surface of the second rotating rod, a push plate is driven to ascend along with the sliding sleeve, and a push rod pushes a mounting shell to ascend; the height of the electromagnetic valve shell can be changed according to the actual height of the electromagnetic valve, a worker does not need to lift the electromagnetic ...

Automatic oily system of making up

... 本实用新型公开了种自动化装油系统，包括柴油罐、第出油口球阀、双转子流量计、立式旋进转子泵、过滤器、第二出油口球阀、液位计、软管、静电夹和现场防爆电气箱，柴油罐前端底部安装有静电夹，现场防爆电气箱内设有过滤器和第二出油口球阀，软管、现场防爆电气箱和柴油罐依次连接：静电夹与现场防爆电气箱内的第二出油口球阀的端相连接，第二出油口球阀的另端与过滤器相连接，软管与现场防爆电气箱之间依次连接有第出油口球阀、双转子流量计和立式旋进转子泵，立式旋进转子泵与现场防爆电气箱内的过滤器连接，柴油罐上设有液位计。本实用新型优化了加油系统，通过液位计能够准确控制油量的多少，提高了工作效率，节省了工作时间。 ...

Motor vehicle license plate manufacturing device

The invention discloses a motor vehicle license plate manufacturing device, and relates to the technical field of mechanical devices, and the motor vehicle license plate manufacturing device comprises a character die feeding mechanism used for transporting a corresponding character die to a character die mounting position on a character pressing machine; the license plate feeding mechanism is used for transporting the license plate blanks to the license plate mounting positions on the character pressing machine; the character pressing machine is used for mutually pressing the character die and the license plate blank after the character die and the license plate blank are installed in place so as to form a semi-finished license plate; the license plate transferring mechanism is used for transferring the semi-finished license plate from the character pressing machine to a license plate receiving position on the hot stamping machine; the hot stamping machine is used for carrying out hot stamping ...

Treatment process and treatment device system for softened water extracted from gas field

The invention relates to a treatment process for softened water extracted from a gas field and a treatment device system thereof, and the treatment process comprises the following steps: introducing the softened water extracted from the gas field into a first-stage electrolysis device for electrolysis treatment, and then introducing the softened water into a second-stage electrolysis device for electrolysis treatment; the method comprises the following steps: adding hydrogen peroxide into water to remove hypochlorite ions, then adding sodium hydroxide to remove redundant hydrogen peroxide, then sequentially introducing the water into a high-pressure reverse osmosis device and a low-pressure reverse osmosis device for reverse osmosis treatment until the concentration of chloride ions in effluent is less than or equal to 100mg/L, and then introducing the water into an electron beam irradiation device for circulating irradiation, the treatment of the softened water extracted from the gas field ...

DI material and smelting method thereof

The invention particularly relates to a DI material and a smelting method thereof, and belongs to the technical field of steel smelting. The method comprises the steps that molten iron is subjected to converter smelting, and converter molten steel is obtained; the converter molten steel is refined; refined molten steel is obtained; continuously casting the refined molten steel to obtain a steel billet; in the converter smelting process, the converter bottom blowing flow is controlled to meet the set flow; in the refining process, the pure circulation time is controlled to meet the set time, the adding amount of the refining outbound slag balls is controlled to meet the set amount, and oxygen blowing and temperature rising are not carried out in the whole refining process; in the continuous casting process, the pulling speed is controlled to meet the set pulling speed, so that slag entrapment caused by molten steel fluctuation is prevented; the steady state is kept by controlling the bottom ...