33results about How to "Meet the layout requirements" patented technology

The invention discloses an eight-core optical fiber multiplexing and demultiplexing device and a preparation method thereof, belonging to the field of optical transmission devices. Holes are punched on a pure silica solid rod according to the core distribution of the eight-core optical fiber to be matched, and the punched The solid rod with the holes completed is drawn to prepare an eight-hole capillary glass sleeve, and the eight single-core optical fibers are inserted into the cleaned eight-hole capillary glass sleeve one by one, and the first tapering is performed so that the eight single-core optical fibers are The eight-hole capillary glass sleeve is fixed; the second taper is performed to make the geometric size of the capillary glass sleeve and the eight single-core optical fiber bundles smaller until the geometric distribution and size of each single-core optical fiber bundle at the taper waist are the same as those to be matched. The geometric distribution and size of the eight-core optical fiber are the same; it is cut at the waist of the cone and aligned with the eight-core optical fiber to be matched. After fusion, all the bare fiber parts are packaged. Realize low insertion loss and low crosstalk connection between eight single-core optical fibers and a single eight-core optical fiber, and realize multiplexing and demultiplexing of optical signals in eight-core optical fibers.

An embodiment of the present invention provides a flow chart layout analysis method, the method comprising the following steps: sequentially traversing each layer of nodes in the flow chart; calculating the weight of each layer of nodes, and sorting the nodes according to the weight; calculating the weight of each layer of nodes coordinates; and optimally adjust the coordinates of nodes in each layer. Use weights to optimize the order of nodes on the same layer, and adjust the coordinate positions of nodes on the same vertical line to ensure the least number of intersections in the flow chart connection, and optimize nodes with overlapping logical relationships, effectively solving the problem of large data volume or Complicated flowcharts reasonably layout requirements, and ensure the clarity of the business logic of the flowcharts, improving user experience. It is especially suitable for the application scenarios of big data processing workflows, meeting the requirements of complex work flow chart layouts in big data industrial applications. In addition, the present invention also provides a device for analyzing the flow chart layout.

The invention discloses an optical fast compressor combustion cylinder capable of shooting by the schlieren method. The front and rear end surfaces of the combustion cylinder main body run through the combustion chamber cavity. The front and rear ends of the combustion chamber cavity are respectively provided with window positioning cavities. Cylinder pressure sensor mounting holes and exhaust holes are set, spark plug mounting holes and air intake holes are set on the upper surface, combustion cylinder positioning cavity is set on the right end surface, and a rectangular channel is set between the combustion cylinder positioning cavity and the combustion chamber cavity from left to right , conical transition section and compression section; the front and rear ends of the combustion chamber cavity are respectively equipped with quartz glass, and the quartz glass is fixed through the glass baffle; there is a combustion chamber between the two quartz glasses, and the combustion chamber and the cylinder pressure sensor installation hole, The exhaust hole, the rectangular passage and the spark plug installation hole are connected, and the rectangular passage is connected with the air intake hole. The present invention mainly changes the direction of the axis of the combustion chamber so that it is perpendicular to the moving direction of the piston, so as to meet the requirements of the optical path arrangement of the schlieren method.

The invention provides a real-time temperature control system and method for improving the casting quality of an aluminum alloy component and belongs to the technical field of casting and manufacturing processes of aluminum alloys. The system comprises a temperature measuring sensor, a flow controller, an electromagnetic valve controller and an electromagnetic valve, wherein the temperature measuring sensor, the flow controller and the electromagnetic valve controller are located in a temperature anomaly region of a mold, and the electromagnetic valve is located in a pipeline of a cooling water pipe; an output end of the temperature measuring sensor is sequentially connected with flow control input ends of the flow controller and the electromagnetic valve, an output end of the electromagnetic valve controller is connected to an opening-closing signal control end of the electromagnetic valve. The method comprises the following steps: analyzing the temperature anomaly region of the mold in a mold design stage, and distributing the cooling water pipe on the temperature anomaly region; recording and analyzing the temperature measuring sensor in a casting pilot production stage, and determining a qualified temperature interval; opening and closing the cooling water pipe by virtue of the electromagnetic valve in a casting volume production stage. By utilizing the system and the method, the production is visualized, the repeated deliberation and testing are avoided, the testing cost is greatly saved, and the yield of products is guaranteed during the volume production.

The invention discloses a positioning device for a rotary protective cover. The positioning device comprises a mounting plate (1), a panel (2), poking handles (4) and a protective cover (5), wherein the panel (2) is mounted above the mounting plate (1); the protective cover (5) is mounted at the middle part of the panel (2). The positioning device is characterized in that the protective cover (5) is fixedly connected with the poking handles (4), a groove (6) is formed in the protective cover (5), and the panel (2) is movably connected with the protective cover (5). A steel ball (7) is mounted between the protective cover (5) and the panel (2), and the protective cover (5) is connected with the poking handles (4) through screws A(3). Screws B(9) are mounted at the bottom of the mounting plate (1), and adjustment washers (8) are mounted between the mounting plate (1) and the screws B(9). The positioning device disclosed by the invention has a control function on a middle position, and is high in targeting precision rate, reliable in performance and convenient in maintenance.