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72results about How to "Consistent load" patented technology

Display panel and display device

The embodiment of the invention provides a display panel and a display device, relates to the technical field of display, and aims to improve the image quality and reduce the data line load difference. The display panel comprises a display area, the display area comprises a first semi-transparent area, a first display area and a second semi-transparent area which are arranged in the first direction, and the first semi-transparent area and / or the second semi-transparent area are / is far away from the second display area on one side of the first display area; the sub-pixels comprise light-emitting sub-pixels and compensation sub-pixels located in the first display area, the density of the sub-pixels in the first semi-transparent area and the second semi-transparent area is smaller than that of the sub-pixels in the second display area, and the density of the light-emitting sub-pixels in the first display area, the density of the light-emitting sub-pixels in the first semi-transparent areaand the density of the light-emitting sub-pixels are the same; wherein the first display area comprises a first pixel column, the second display area comprises a second pixel column, the first data line penetrates through the first pixel column, and the second data line penetrates through the second pixel column; wherein the first pixel column comprises n1 sub-pixels, the second pixel column comprises n2 sub-pixels, n1=K*n2, and K is greater than or equal to 0.99 and less than or equal to 1.01.
Owner:WUHAN TIANMA MICRO ELECTRONICS CO LTD

Device and method for testing chloride corrosion of reinforced concrete member under continuous load

The invention provides a device and method for testing chloride corrosion of a reinforced concrete member under a continuous load. The device comprises a continuous load loading device, a rapid chloride corrosion device and a measurement and control device. A continuous load is applied by a loading frame and a drive device, a frame body is filled with a chloride solution and is fixed at the upper-middle part of a test beam in a sealing manner, air is continuously injected in the chloride solution by adopting an air pump, and direct current is introduced into reinforced steel bars of the test beam to implement the rapid corrosion. Relevant data acquirers, electrochemical testers and output equipment which are controlled through a single chip microcomputer in a unified manner are integrated in the main control box, the continuous load is measured in real time, and periodically corrected to a target level, corrosion behaviors of a corroded member are periodically tested, and data are acquired, displayed, stored, printed and output in real time. The device is capable of effectively simulating an actual corrosion working condition of the on-active service reinforced concrete structure member under the coupling effect of a chloride environment and the load, and provides a scientific basis for evaluating the durability of engineering structures under chloride environments such as sea and salt lakes.
Owner:HOHAI UNIV

GOA circuit and liquid crystal display panel

The invention discloses a GOA circuit which comprises a first-stage GOA driving unit, ..., an N-stage GOA driving unit, wherein the first-stage GOA driving unit,..., the N-stage GOA driving unit are arranged in a cascaded manner and are used for successively supplying a scanning driving signal to a first scanning line, ..., an N-th scanning line in the liquid crystal display panel, wherein the number of the clock signals for driving the GOA circuit is m. The GOA circuit further comprises an (N+1)-stage GOA driving unit, ..., an (N+i)-stage driving unit, wherein the (N+1)-stage GOA driving unit,..., the (N+i)-stage GOA driving unit are cascaded after the N-stage GOA driving unit. The (N+1)-stage GOA driving unit to the (N+i)-stage driving unit are electrically connected with an N-i+1-stageGOA driving unit to the N-stage GOA driving unit in a one-to-one correspondence manner, thereby controlling the N-i+1-stage GOA driving unit to the N-stage GOA driving unit operate normally, and making the circuit loads of the N-i+1-stage GOA driving unit to the N-stage GOA driving unit approach to the circuit load of the GOA driving unit in front of the N-i+1-stage GOA driving unit to the N-stageGOA driving unit, wherein i is an integer which is higher than or equal with 1, and N is an integer which is higher than i, and m=2i. The invention further discloses a liquid crystal display panel which comprises the GOA circuit.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD

Quick following control method for lifting motor and opening and closing motor of grabbing crane

The invention relates to a quick following control method for a lifting motor and an opening and closing motor of a grabbing crane. The quick following control method includes steps that when a grab bucket fully grabs materials and is closed, the opening and closing motor is switched to a torque control mode with fixed torque so as to run in a deceleration manner at the set torque; simultaneously, the lifting motor works in a speed control mode with fixed rotation speed and is driven to accelerate to set speed; and when the running distance of a draw cord of the lifting motor is equal to that of a draw cord of the opening and closing motor, the opening and closing motor is switched to a speed control mode, and the lifting motor is switched to a torque control mode so as to follow the torque of the opening and closing motor. The working modes of the opening and closing motor and the lifting motor are controlled, accordingly, when the draw cord of the lifting motor is tensioned straightly to carry load, the opening and closing motor is in a torque limit state, overload of the opening and closing motor is avoided assuredly, the opening and closing motor is driven to run in the deceleration manner, and simultaneously, the lifting motor is in a quick acceleration state until the running distances of the two motors are identical.
Owner:HENAN WEIHUA HEAVY MACHINE

Analog-to-digital conversion circuit, production line analog-to-digital conversion circuit and control method

The invention provides an analog-to-digital conversion circuit, a production line analog-to-digital conversion circuit and a control method. The analog-to-digital conversion circuit comprises an amplifying circuit, a first capacitor, a second capacitor, a switch unit, a compensating capacitor and a compensating control switch unit; the first input end of the amplifying circuit is connected to one end of the first capacitor, and while the other end of the first capacitor is suitably selectively connected one of common mode voltage or at least one reference voltage through the switch unit; the second input end of the amplifying circuit is connected with the common mode voltage; the second capacitor is connected between the first input end of the amplifying circuit and the first output end; one end of the compensating capacitor is connected to the common mode voltage, and while the other end of the compensating capacitor is suitably selectively connected to the common mode voltage or a reference voltage source which produces the at least one reference voltage through the compensating control switch unit. The analog-to-digital conversion circuit is able to stabilize the reference voltage so as to improve the linearity of the production line analog-to-digital conversion circuit.
Owner:GALAXYCORE SHANGHAI

Multi-cylinder oilless compressor of refrigerating agent recovery machine

The invention discloses a multi-cylinder oilless compressor of a refrigerating agent recovery machine, comprising a box body, a cylinder, a crankshaft arranged inside the box body, and a motor provided with an output main shaft connected with the crankshaft, wherein the crankshaft is provided with an eccentric shaft part which is taken as a common driving shaft of a plurality of connecting rods; the eccentric shaft part is movably connected with the plurality of connecting rods which are sequentially arranged along the axial direction of the eccentric shaft part; the box body is provided with cylinders which have the number being same as that of the connecting rods; the cylinders are evenly distributed along the circumference correspondingly to the center of the crankshaft; each cylinder is internally provided with an air inlet valve, an exhaust valve and a piston; and the pistons are connected with the corresponding connecting rods in the cylinders where the pistons are arranged. The multi-cylinder oilless compressor overcomes the limitation that the existing compressor only has a single cylinder or double cylinders, expands the structure of three cylinders, four cylinders, six cylinders or eight cylinders on the basis of the double cylinders, and has the characteristics of small volume, light weight, simple and compact structure, rapid refrigerating agent recovery and thorough recovery.
Owner:蒋友荣

Friction plate impact plastic deformation test system

The invention discloses a friction plate impact plastic deformation test system. The friction plate impact plastic deformation test system comprises an impact plastic deformation simulation device, astrain signal acquisition module, a strain signal processing module, a high-speed camera, a digital image processing module and a display control module; the impact plastic deformation simulation device directly simulates the contact plastic deformation load caused by the impact contact stress, and friction plate tooth surface contact plastic deformation fatigue damage is re-produced; the high-speed camera captures the motion process picture of an engaged tooth surface under high-speed rotation conditions; the digital image processing module performs digital image technological analysis on themotion process picture, and obtains the tooth surface local strain time process, vibration fracture and impact plastic deformation process; the strain signal acquisition module collects fracture stress and crack propagation velocity information of the friction plate tooth surface part crack propagation local parts; and the display control module displays the information processed by the strain signal processing module and the digital image processing module. According to the test system, the fatigue S-N characteristics of the tooth parts of the friction plates are obtained in a contact and non-contact measurement mode.
Owner:CHINA NORTH VEHICLE RES INST

Basin type insulator

The invention relates to a basin type insulator for high-current electric power transmission equipment. The basin type insulator at least comprises a tube type flange, a connecting conductor and an insulation casting body, and is characterized in that the insulation casting body is in an annular shape, the connecting conductor is arranged in a hole of the annular insulation casting body and is in bilateral symmetry by using the annular insulation casting body as the center, the tube type flange is arranged outside the annular insulation casting body, the upper and lower surfaces, near the excircle part, of the annular insulation casting body are respectively and correspondingly provided with first annular grooves, a first O-shaped sealing ring is arranged in each first groove, the upper and lower surfaces, near the inner circle part, of the tube type flange are respectively and correspondingly provided with second annular grooves, a second O-shaped sealing ring is arranged in each second groove, two ends of the connecting conductor are respectively provided with a plurality of annular conducting grooves, and a spring contact is sheathed on each annular conducting groove. The basin type insulator has the advantages that the problem of usage occasion limitation of the traditional basin type insulator is solved, and in addition, the sealing performance is good.
Owner:POWERCHINA XIBEI ENG +3

Self-adjusting clamp head for macromolecular material multi-sample friction and abrasion tester for oilfield

InactiveCN106840931AConsistent loadSolve the problem of deviation in manual processing of test blocksInvestigating abrasion/wear resistanceUniversal jointDrive shaft
The invention discloses a self-adjusting clamp head for a macromolecular material multi-sample friction and abrasion tester for an oilfield, and belongs to the field of friction and abrasion testing devices. The self-adjusting clamp head comprises a transmission shaft, a cross shaft universal joint, an upper friction plate, a lower friction plate and a sleeve cylinder, wherein the upper end of the transmission shaft is fixedly connected with a rotary power shaft of the friction and abrasion tester, and the lower end of the transmission shaft is fixedly connected with the cross shaft universal joint; the lower end of the cross shaft universal joint is fixedly connected with the upper friction plate, a sample clamping hole is formed in the upper friction plate, and a sample is arranged in the sample clamping hole; the lower end of the lower friction plate is fixedly connected with a loading shaft, and the upper end of the lower friction plate is attached to the sample. The self-adjusting clamp head has the advantages that the requirement of friction and abrasion test on one or multiple macromolecular material samples with height size deviation at the oilfield site is met, and the loads on the samples are uniform; the structure is simple, and the testing efficiency is high.
Owner:BEIJING UNIV OF CHEM TECH

Display panel and display device

The embodiment of the invention provides a display panel and a display device, relates to the technical field of display, and aims to improve the split screen phenomenon. The display panel comprises adisplay area provided with sub-pixels, a reference bus, reference signal lines, and a load compensation structure, wherein the reference signal lines are connected with the sub-pixels, at least partof the reference signal lines are connected with the reference bus through the load compensation structure, the load compensation structure comprises a load compensation wire connected with the reference bus, a signal transmission wire connected with the reference signal wire, and at least two switches connected between the load compensation wire and the signal transmission wire, the reference signal lines comprise a first reference line and a second reference line, and the first reference line is shorter than the second reference line. The display panel is advantaged in that in the load compensation structure connected with the first reference line, equivalent loads of the load compensation line and the signal transmission line which are connected through the switches are LA1, in the loadcompensation structure connected with the second reference line, equivalent loads of the load compensation line and the signal transmission line which are connected through the switch are LA2, and LA1 is larger than LA2.
Owner:WUHAN TIANMA MICRO ELECTRONICS CO LTD
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