30results about How to "Eliminate the effects of" patented technology

An output level stabilization circuit being an output level stabilization circuit for a CML circuit, the output level stabilization circuit includes: a replica circuit constituted of transistors respectively having the same characteristics as one of differential-pair transistors of the CML circuit and a current source transistor; a comparison circuit which compares an output of the replica circuit with a reference voltage and supplies the comparison result as a control voltage for the current source transistor of the replica circuit; and a variable impedance circuit arranged between the output of the replica circuit and an input of the comparison circuit.

The invention relates to a parameter replacing test method and device. The parameter replacing test method comprises the following steps of obtaining at least one parameter request link including macroparameters to be replaced; according to a parameter replacing logic, respectively performing parameter replacement on the macroparameters included in each parameter request link to obtain each parameter return link including a replacing parameter; comparing the replacing parameter included in each parameter return link with a preset parameter corresponding to the parameter replacing logic to obtain a replacing result corresponding to each parameter return link; determining whether the parameter replacing logic can normally operate or not according to the replacing result corresponding to each parameter return link. The parameter replacing test method provided by the embodiment of the invention has the advantage that the test efficiency of the parameter replacing logic can be improved.

The invention discloses a test device for the efficiency of a gear-shifting cable of an automobile. The test device comprises a test platform (7) and a data acquisition system, wherein the test platform (7) comprises a bracket (2) and a cylinder (1) fixed at the bottom of the bracket (2); an output rod of the cylinder (1) is connected with a tension force sensor (3); the other end of the tension force sensor (3) is connected with the head part of a gear-shifting cable (51); the other end of the gear-shifting cable (51) is fixed on a clamp (6); one end of the gear-shifting cable (52) is fixed on the side of the other end of the clamp (6); the other end of the gear-shifting cable (52) is connected with a tension force sensor (9); the tension force sensor (9) is connected with a spring (10); the other end of the spring (10) is fixed at the bottom of the bracket (2); and a displacement sensor (4) and a displacement sensor (8) are fixed on the bracket (2) respectively. The test device is simple in structure, convenient to install and disassemble, low in cost and capable of lightening the working intensity of test personnel.

The invention discloses an adaptive protection method of a power distribution network with a distributed power supply. The method comprises the steps that 1) the distributed power supply is equivalentto an ideal current source Idg, the magnitude of the Idg is directly proportional to the magnitude of the output power of the distributed power supply, and according to a topological structure of a line, an equivalent circuit when a downstream line of the distributed power supply is determined; 2) a fault type parameter Kd estimated automatically and a system impedance Zs when the fault occurs are determined; 3) an impedance Zk from downstream protection of the distributed power supply to a fault point is determined, and an increase assisted current Ip is calculated; and 4) on the basis of the increase assisted current, a main protection setting value of the downstream protection of an access point of the distributed power supply is adjusted adaptively. According to the invention, the distributed power supply is equivalent to the ideal current source, the line model is simplified, and influence of the capacity of the distributed power supply is taken into consideration; and connectionof the distributed power supply has an effect of increasing downstream protection, and influence of connection of the distributed power supply on main downstream protection of the access point is eliminated.

The invention discloses a multi-station cold-upsetting forming machine with an oil-water separation function. The multi-station cold-upsetting forming machine comprises a cold-upsetting forming machine body, a cold-upsetting sliding table mounted on the cold-upsetting forming machine body, and a cold-upsetting mold, wherein the cold-upsetting mold and the cold-upsetting sliding table are mounted correspondingly. The cold-upsetting sliding table is mounted on a horizontally-arranged cold-upsetting sliding rail. One end of the cold-upsetting sliding rail is connected with the cold-upsetting forming machine body, and the other end of the cold-upsetting sliding rail extends towards the lower portion of the cold-upsetting mold. An oil collecting plate is arranged under the cold-upsetting sliding rail. The first edge of the oil collecting plate is fixed to the position, on the lower portion of the cold-upsetting sliding rail, of the cold-upsetting forming machine body. The second edge, except for the first edge, of the oil collecting plate is bent in the direction of the cold-upsetting sliding table to form an oil blocking step. The top of the oil blocking step corresponding to the edge,close to the cold-upsetting mold, of the oil collecting plate is located on the lower portion of the cold-upsetting sliding rail, and the projection of the cold-upsetting sliding table on the horizontal plane is located in the area defined by the oil blocking step and the first edge. By applying the multi-station cold-upsetting forming machine, oil contamination on the surface of a cold-upset product can be eliminated.

The invention provides a stratum capture cross section curve processing method and device, equipment and medium. The method comprises the steps: resampling an actual measurement capture cross section curve in collected logging data, carrying out parameter calculation by employing a pre-trained linear model according to the sample data obtained through the resampling, obtaining an inversion parameter, substituting the inversion parameters into a volume model for calculating the capture cross section curve, obtaining a final inversion curve, namely, the original capture cross section curve of the stratum can be obtained, so that a water flooded layer of the stratum can be evaluated subsequently, the stratum is evaluated on the basis of the inversion curve, the influence of a skeleton and argillaceous substances on the capture cross section can be eliminated, and the evaluation precision is improved.

The invention relates to a height-adjustable coal cutter supporting assembly. The height-adjustable coal cutter supporting assembly includes a sliding shoe, a supporting seat, a piston, a supporting leg, a guide sleeve and a two-way hydraulic control check valve. The lower part of the supporting leg is hinged to the sliding shoe, and an upper section rectangular groove and a section lower circulargroove are formed in the supporting leg. The guide sleeve is in threaded connection with the upper part in the circular grooves. The middle part and the lower part of the supporting seat are made into a rod-shaped structure with a rectangular cross section and a rod-shaped structure with a circular cross section separately. The piston is in threaded connection with the lower part of the rod-shaped structure with the circular cross section in a sleeving mode, the piston is in sliding fit with the circular grooves in a space which is in the circular grooves and below the guide sleeve to form acylinder structure, and two cavities above and below the piston are connected with two oil outlets of the two-way hydraulic control check valve through two oil holes in the supporting seat separately.The height-adjustable coal cutter supporting assembly is long in service life, can improve the coal loading capacity of a coal cutter in a prone mining state, can absorb part of the vibration of thecoal cutter, and prolong the service life of a roller of the coal cutter.

The invention discloses a fuel injection quantity electrical signal acquisition system and method based on a Zeuch pressure magnetic method. The system comprises a measurement module, a fuel injectorpressurization module, a square-cavity pressurization module and a signal post-processing module. The fuel injector pressurization module and the square-cavity pressurization module are used for loading the initial injection pressure and the square-cavity back pressure; after a fuel injection process is completed, the measurement module captures a pressure signal variation curve in the square-cavity; and a pressure signal curve can be reverted to an actual fuel injection rate by the signal post-processing module after the operations of filtering, differentiation, calibration and the like are performed. The invention designs and processes a fuel injection rate measuring instrument, and the measuring instrument can effectively detect a multi-stage injection process, and is high in repeatability, convenient to carry, and low in noise and good in seismic performance during use.

The invention provides a three-axis acceleration sensor. The three-axis acceleration sensor comprises a substrate and at least one anchor point fixedly arranged on the substrate. The sensor also includes a first movable mass block, a second movable mass block, and a third movable mass block. The gravity centers of the second movable mass block and the third movable mass block are located on the two sides of the anchor point respectively. The two mass blocks with different center-of-gravity positions are arranged, and the influence of external stress on acceleration detection is eliminated through rotation of the mass blocks.

A window wiper for a ship is provided to effectively remove interference on a visual field caused by an improper stop position of wipers. A window wiper for a ship comprises a frame(1), pulleys, a belt, an operating rod, reciprocating rods(7b), a wiper arm(8b), and a wiper. The frame is horizontally installed on a hull(B) on the upper or lower side of a window. The pulleys are fixed to both sides of the frame and driven with a single drive motor. The belt is connected to the pulleys to have a caterpillar motion. The operating rod is connected to one side of the belt through a connection bar and moves from side to side. The reciprocating rods are respectively installed on both ends of the operating rod and move from side to side on both sides of the frame. The wiper arm is connected to the reciprocating rods and the wiper is coupled to the end of the wiper arm. One end of the operating rod is fixed to the reciprocating rod while the other end is provided with a connecting piece.

The invention discloses a torque balance demonstration device, which comprises a cross bar, a spring scale, a spring scale seat, a torque plate, a nail inserted, a weight and an iron support. Among them, the spring balance base is connected with the cross bar with bolts. After the spring scale is inserted into the spring scale base, the spring balance can be rotated freely in the 360-degree space by rotating the cross bar and sliding the fixing bolts in the groove, and adjusted to a suitable position, and then use the The nut fixes the spring balance base. The invention has the advantages of maintaining stable experiments and relatively accurate experimental results, and can eliminate the influence of the gravity of the spring balance.