49results about How to "Determine the length" patented technology

The invention discloses a near space high-speed target plasma electromagnetic measurement system which comprises a cylindrical horizontal vacuum cavity, wherein a nozzle plane of plasma entering the vacuum cavity cannot be coplanar with the end face of the vacuum cavity; transmitting and receiving antennas of a transmission measurement system are respectively erected on the lower guide rails on the two sides, the transmitting and receiving antennas of the transmission measurement system are symmetrically erected and can perform two-dimensional movement along the axis direction and the radial direction of the plasma, a to-be-measured target of a scattering measurement system is erected on the lower guide rail in the middle, and transmitting and receiving antennas of the scattering measurement system are all erected on the upper guide rail; and a transmitting antenna of an internal electromagnetic field measurement system is erected on any group of lower guide rails on the two side edges, and an electric field / magnetic field probe for receiving an electromagnetic field is erected on the lower guide rail in the middle. According to the invention, three measurement systems, namely, the transmission measurement system, the scattering measurement system and the internal electromagnetic field measurement system, in plasma electromagnetic measurement are considered at the same time, so that an electromagnetic scattering experiment and a transmission experiment can be configured at the same time and do not influence each other.

A method of detecting wrinkles (3) in a fiber reinforced laminated structure (1) is provided. In this method, - the structure (1) is locally heated or cooled, the location of the heating or cooling being moved along a defined path (7), - the temperature of the structure (1) is measured at a measuring location being different from the location of the heating or cooling, the measuring location being moved along the same path (7) as the location of the heating or cooling, and - wrinkles (3) are detected from temperature anomalies found along the defined path (7).

The invention relates to an intelligent welding method, system and device and a storage medium. The method comprises the steps of determining pre-marked reference points and all welding discs on a circuit board according to printing information of the circuit board to be welded, reading parameter information of each welding disc and determining relative position information between the welding discs; determining the welding discs to be welded on the circuit board, reading parameter information of the welding discs to be welded and the information about the relative positions between the welding discs to be welded and the reference points, generating welding parameter information and welding pulse information, and according to the welding parameter information and the welding pulse information, welding the circuit board; the parameter information of the welding discs to be welded on the circuit board and the information about the relative positions between the welding discs to be weldedand the reference points are obtained, the welding parameter information and the welding pulse information are generated, the circuit board is precisely welded, different soldering tin amounts are applied according to different welding discs, the manual debugging workloads at the early period are greatly reduced, work efficiency and product quality are improved, and the automation degree is high.

The invention discloses a large-scale curved surface modeling product mapping device, which comprises a base, wherein two X-direction laser range finders are symmetrically arranged on the upper surface of the base, and two mounting grooves, a motor cavity and an equipment cavity are symmetrically arranged on the upper surface of the base, wherein, a first motor is arranged in the motor cavity, a threaded rod is horizontally arranged in each mounting groove, and one end of each threaded rod extends into the equipment cavity and is provided with a synchronizing wheel, wherein two of the synchronizing wheels are provided with a synchronizing belt together, each threaded rod is in threaded connection with a moving seat, and Y-direction laser range finders are arranged on the side walls of thetwo moving seats. The invention has the advantages that: the device is ingenious in structure, can measure the side wall positions and the upper surface positions of different positions of the special-shaped part, can measure large-scale curved surface products with complex surface structures, shortens the measuring time of the special-shaped part, and reduces the measuring process, so that the difficulty of measuring the special-shaped part is reduced.

The invention provides a combined shearing tool for a plastic granulator. The combined shearing tool comprises a hollow cutter base, blades, a cutter shaft and limiting blocks. The hollow cutter base is connected with the blades and the cutter shaft. The outer edge of the hollow cutter base is of a sawtooth shape. Wheel teeth of the hollow cutter base are conical teeth. Each blade comprises a cutting edge mechanism, a connecting block and a locating block. Each cutting edge mechanism is provided with a first protruding block and a first screw hole. Each connecting block is provided with a first screw hole, a second protruding block and a first groove corresponding to the first protruding block. Each locating block is provided with a first screw hole, a third screw hole and a second groove corresponding to the second protruding block. The blades are fixed through the limiting blocks. Each limiting block is provided with a second screw hole. The hole diameter of each second screw hole is the same as that of each first screw hole. The shearing tool is of a combination type, the length of the blades is determined conveniently according to actual use, and meanwhile the interval between the blades can be adjusted. The combined shearing tool is reasonable in design, flexible and convenient to use and beneficial for improving production efficiency.

The invention discloses a clothes manufacturing process. The process comprises the following steps: step 1, cloth preparation; 2, cloth marking; 3, cloth piece cutting; 4, clothes sewing; 5, whole clothes turning over; step 6, edge covering and locking; step 7, defect inspection; 8, clothes ironing; and 9, finished product packaging, wherein the cloth preparation step comprises the following steps: raw material selection, cloth weaving and cloth inspection; the step of clothes sewing comprises the following steps: sewing of cut pieces, sewing of sleeve pieces, sewing of whole clothes and seaminspection; the step of whole clothes turning over is characterized by making the rough edge of the seam facing outward; the step of edge covering and beautifying comprises edge covering and edge locking; the step of defect inspection is characterized by detecting the defects of clothes and detecting whether missing sewing and misalignment occur; ironing and shaping are conducted through a steam engine, and the ironed clothes are folded and packed. The process is smooth in process and convenient to operate; seam allowance at the seam joint of the clothes faces outwards, so that abrasion to skin can be avoided; and meanwhile, the clothes are tidy and attractive.

The invention discloses a ribbon drying and winding device used for a coding machine. The device comprises a box body. A driving roller is rotatably connected between two sides opposite to the inner wall of the box body. A slide plate is slidably connected to the corresponding position of the driving roller and is arranged between the two sides opposite to the inner wall of the box body. The bottom of the slide plate is fixedly connected to a buffer device. The center of the buffer device is rotatably connected to a driven roller. The two sides which are opposite to the inner wall of the box body are fixedly connected to a fixing block. The top of the fixing block is rotatably connected to a ribbon discharge roller through a rotation fixing device. The top of the inner wall of the box bodyis fixedly connected to a moving device. A heating box is fixedly connected to the corresponding position of the moving device on the top of the box body. The two sides of the heating box are connected to an air blower. The bottom of the moving device is fixedly connected to a ventilation plate. The device relates to the ribbon technology field. By using the ribbon drying and winding device usedfor the coding machine, a problem that existing drying and winding are performed separately is solved, and ribbon quality and work efficiency are increased.

The invention relates to a combing method. The dead zone length a meets the formula a=l*(1-eta*), wherein l represents the average fiber length, eta* represents the hook average straightness coefficient of fiber in a cotton layer fed for combing, the average fiber length l is obtained by conducting calculation after fiber grouping, and the hook average straightness coefficient of the fiber in thecotton layer fed for combing is obtained by adding colored fiber in cotton combing feeding, measuring the straightness coefficient of the colored fiber after the processes of cotton combing, pre-drawing and lap doubling and then conducting averaging. The combing method can solve the problems that in the prior art, a method for determining the dead zone length consumes much time and labor and easily causes serious damage to fiber in the combing process; by calculating the appropriate combing dead zone length according to the actual hook condition of the fiber in the cotton layer fed for combing, the combing effect is guranateed while the fiber damage is reduced.