11results about How to "High coincidence" patented technology

The application relates to a multi-aperture imaging space remote sensing target positioning optical system and a calibration method, and relates to the field of remote sensing and aerospace imaging optical instruments. The application solves the contradiction between the requirements of a large field of view and high resolution imaging of a traditional single-aperture optical imaging system, and realizes accurate positioning of a target to meet the intelligent requirements of a multi-aperture optical imaging system. The multi-aperture imaging space remote sensing target positioning sub-aperture imaging optical system comprises an electromagnetic vibration mirror, a beam-reducing telescope group, a fast reflection mirror and a rear focusing mirror group. The beam-reducing telescope group and the rear focusing mirror group are connected through the fast reflection mirror, and the light beam is connected with an imaging branch through the electromagnetic vibration mirror. After the imaging light beam passes through the telescope system, the imaging light beam is reflected by the fast reflection mirror and focused on a detector to form an image. The application is also suitable for a mobile platform for fast positioning and high-precision capturing of a dynamic target in the field of industrial precision machining and space remote sensing.

The invention discloses a preparation method of a carrier plate structure, the carrier plate structure and a semiconductor packaging structure. The preparation method of the support plate structure comprises the following steps: providing a support plate, wherein the support plate is provided with a first surface and a second surface opposite to each other in a first direction; modifying the support plate at a part of positions by using a laser induction process from one side of the support plate in the first direction, so that the support plate is provided with a modified area and a non-modified area, and the sizes of the modified area and the non-modified area in the first direction are equal to the size of the support plate in the first direction; performing etching treatment on the first surface in the modification area to form a first hole section which does not penetrate through the carrier plate; preparing a first conductive structure in the first hole section; performing etching treatment on the second surface in the modification area to form a second hole section communicated with the first hole section; and at least preparing a second conductive structure electrically connected with the first conductive structure into the second hole section.

This invention discloses a portable sediment sampler with a multifunctional collection structure for shallow sea use. It includes a connecting cylinder with a T-shaped operating handle fixedly connected to its top. A connecting layer column is movably installed at the bottom of the connecting cylinder, and a sampling mechanism is fixedly installed at the bottom of the connecting layer column. The sampling mechanism comprises a vertical cylinder, a compression spring, a sediment sampling cylinder, a first slot, a second slot, and a folded cylindrical plate. The sampling mechanism also includes a sealing cylinder, a threaded ring, a filter cotton sheet, and a filter plate. This sampler can simultaneously sample seabed sediment and seabed water, and can separate the sediment from the seabed water. During use, the sampler can be fixed to the side plate of a small fishing boat using an N-type mounting bracket, an adjusting rod, and a pressure disc. Furthermore, during the deep-sea sampling process, the support mechanism effectively prevents the sampling mechanism from tilting. The sampler also has an anti-loss function.

The application relates to the technical field of electric digital data processing, and particularly discloses a product information risk assessment method and system based on a large model, which comprises the following steps: simultaneously scanning source code and products by a scanner to generate a source dependency list and a product component list, performing main name normalization and alignment through a large model, locking a warehouse and a version according to the source dependency list, analyzing original code by a parser to generate a cross-language path logic group, combining the product component list to correct a real package version, converging into a unified intermediate representation, performing reachability and joint analysis on the unified intermediate representation to obtain a risk candidate path set and complete path scoring, finally, according to a preset weight and a running period evidence, modifying the score, screening out a risk path, matching a disposal strategy, and generating executable strategy code by the large model for risk control of a gateway or a service side.

The utility model relates to a transmission structure of a wet-type rod mill. The transmission structure comprises an output motor, a coupler, a pinion device, a bull gear and a barrel body, flanges are arranged at the two axial ends of the barrel, and the large gear is installed at the axial inner end of the flange on one side. The output motor is a permanent magnet motor and is installed on a motor base on the side of the barrel, the coupler is an elastic pin coupler, an output shaft of the permanent magnet motor is connected with the small gear device through the elastic pin coupler, the small gear device at least comprises a small gear meshed with the large gear, and the small gear is meshed with the large gear. The permanent magnet motor can drive the small gear to rotate to drive the large gear and the barrel to rotate. The permanent magnet motor and the elastic pin coupling are adopted to provide torque to drive the rod mill barrel to rotate, power consumption is remarkably reduced, high-inertia load generated when the rod mill is started is easily overcome, impact load and instantaneous vibration of the rod mill barrel are absorbed through the elastic pin coupling, a motor shaft and a transmission system are protected, and the service life of the rod mill is prolonged. The motor bearing life is prolonged.

This invention provides a continuous stepless adjustment device, method, and application for electron beam based on the axial position control of the convergence point, belonging to the field of electron optics adjustment technology. The invention includes an anode body, an anode aperture, an electromagnetic focusing unit, and a fixed single-aperture main aperture, coaxially arranged along the electron beam propagation direction within the lens barrel of an electron optics system. This invention uses the axial position of the electron beam's convergence point relative to the fixed single-aperture main aperture as the control degree of freedom. The electromagnetic focusing unit continuously adjusts the displacement of the convergence point along the optical axis, achieving continuous stepless adjustment of the electron beam. By completely eliminating the mechanical moving parts of the aperture, this invention not only achieves continuous and smooth adjustment of the electron beam but also fundamentally avoids the vibration, contamination, and failure risks caused by mechanical movement. This significantly improves the reliability, repeatability, and long-term stability of the electron optics system, while simplifying the system structure and reducing manufacturing and maintenance costs.

The utility model discloses a grid for preventing foreign matters from invading into a subway ventilation opening, and relates to the field of subway facilities, in particular to the grid for preventing the foreign matters from invading into the subway ventilation opening, which comprises a grid body arranged on the subway ventilation opening, the body consists of an upper frame and a lower frame, and a protection assembly for preventing the foreign matters from invading into the grid body is arranged on the body. The protective assembly comprises a first partition plate installed in the upper frame and a plurality of second partition plates installed in the lower frame, and the first partition plates and the second partition plates are alternately arranged on the projection face in the air inlet direction in a staggered mode. Foreign matters are easy to accumulate on the grating, so that the problem that the foreign matters enter a subway after long-term use still occurs.

The fine adjustment device comprises an adjusting support, a first low-beam lens and a second low-beam lens are connected to the adjusting support in an inserted mode, and the first low-beam lens comprises a first lens support. First protruding shafts in the horizontal direction are arranged on the two sides of the first lens support, the first low beam lens can rotate with the straight line where the two first protruding shafts are located as a rotating shaft, and a first adjusting protruding shaft in the vertical direction is arranged on the top face of the first lens support. The second low-beam lens comprises a second lens support, second protruding shafts in the horizontal direction are arranged on the two sides of the second lens support, the second low-beam lens can rotate with the straight line where the two second protruding shafts are located as the rotating shaft, and a second adjusting protruding shaft in the vertical direction is arranged on the top face of the second lens support. According to the device, the two low-beam lenses can be rotated and finely adjusted, so that cut-off lines of the two low-beam lenses coincide, the phenomenon of transverse fault is avoided, interference to sight lines of vehicles and pedestrians in the opposite direction is reduced, and accidents are reduced.

A steel box girder segment comprises a top plate, a top plate connecting plate and a web plate, a top plate connecting plate connecting hole is formed in the top plate connecting plate, a web plate connecting hole is formed in the web plate, and the three-way angle type tool comprises a top plate bolting plate, a top plate connecting plate bolting plate and a web plate bolting plate. Any two of the two connecting rods are perpendicular to each other and are welded together respectively. A first bolting hole is formed in the top plate connecting plate bolting plate; second bolting holes which are distributed in rows and columns are formed in the top plate bolting plate; third bolting holes are formed in the positions, corresponding to the web connecting holes, of the web bolting plate. According to the three-way angle type tool, a standard right-angle geometrical relationship can be endowed to the top plate, the web plate and the top plate connecting plate of the steel box girder in a forced mode, so that the spatial position of the intersection point of the three plates can be locked in advance in the assembling stage of a steel box girder section, and it is ensured that the topological relationship of all the plates in a complex three-dimensional space is consistent with the height of a design model.

The invention provides a flexible tactile sensor and a pressure tactile measurement method thereof, and the flexible tactile sensor comprises a piezoelectric micromachined ultrasonic transducer (PMUT) array layer which is used for transmitting an ultrasonic signal and receiving a reflected ultrasonic signal; the ultrasonic reflecting layer is arranged on a sound wave transmitting path of the PMUT array layer and is used for reflecting the ultrasonic signal; and the flexible ultrasonic coupling layer is arranged between the PMUT array layer and the ultrasonic reflecting layer and is used for conducting ultrasonic signals and generating deformation in the thickness direction in response to external pressure so as to change the propagation path length of the ultrasonic signals in the flexible ultrasonic coupling layer. According to the invention, an ultrasonic reflection mechanism irrelevant to target acoustic characteristics is realized in the PMUT flexible touch sensor for the first time, the problem of degradation of the signal-to-noise ratio in a low-impedance / sound absorption target scene is fundamentally solved, and the universality and measurement consistency of the sensor are remarkably improved.

This utility model discloses a high-rigidity double-gear planetary reducer, including a sun gear, a planet carrier, and at least three double-gear planetary gears. The double-gear planetary gears include a large gear and a small gear. The sun gear meshes with the large gear, and the small gear meshes with an internal gear ring. A housing is connected to the bottom of the internal gear ring, and a crossed roller bearing is provided between the housing and the internal gear ring. A gear shaft is fixedly connected to the sun gear, and a wiring hole is provided through the gear shaft and the sun gear. A hollow structure coaxially connected to the wiring hole is provided between the planet carrier, the internal gear ring, the housing, and the crossed roller bearing. This utility model has the characteristics of achieving a suitable speed ratio in a single-stage reduction and allowing for hollow wiring.