20results about How to "Test stable" patented technology

The utility model relates to the technical field of photovoltaic test, and especially relates to a photovoltaic assembly test adaptation assembly. According to the technical scheme, the device comprises a main machine shell frame assembly, and a main machine vertical support assembly is arranged on the outer side of the main machine shell frame assembly; side sliding rails are arranged at the left end and the right end of the host shell frame assembly, the lower portions of the side sliding rails are connected with bottom rail beams, and transverse shaft side supporting pieces are arranged on the upper portions of the side sliding rails. Transverse shaft supporting angle aluminum is arranged on the front face of the transverse shaft side supporting piece, a second sliding rail is arranged on one side of the transverse shaft supporting angle aluminum, a groove is formed in the surface of the second sliding rail, and a protrusion is arranged on the inner wall of the groove. The sliding block is arranged on the second sliding rail in a sliding mode, and an adaptive cambered surface is arranged on the surface of the sliding block. According to the utility model, through cooperative use of the slide rail II, the slide block, the guide groove, the guide plate, the spring and other structures, a patch panel used by a photovoltaic module can be placed and used, and the subsequent patch panel can be ensured to move along with the photovoltaic module, so that the stability of electrical supply is ensured, and the application range is widened.

This invention relates to the field of glass production testing technology, specifically disclosing a glass cold bending ultimate failure test device and method. The device includes a worktable and four identical cold bending loading units. Each unit integrates a planar displacement structure with horizontal displacement capability, a liftable and directional adjustable support structure, and a pressure head connected by a ball joint. During testing, the planar displacement structure of each unit is first adjusted to accommodate glass specimens of different sizes. Then, the support structures of three units form an L-shaped support surface, and their pressure heads press against corresponding corner points on the upper part of the specimen to establish stable constraints. Finally, the pressure head of the fourth unit applies a concentrated load to the unconstrained corner points, while automatically monitoring the load and displacement until the specimen fails. This invention, through modular and automated design, achieves high versatility of the device, high testing accuracy, and high operational safety, effectively improving testing efficiency and data reliability.

This invention belongs to the field of medical signal processing technology, specifically a method and prediction system for constructing a three-dimensional tumor motion trajectory prediction model. It involves collecting temporal data of point clouds from the human chest and abdomen, as well as temporal location information of the tumor, and establishing a unified spatial coordinate system. The temporal data of the point clouds are divided into n time periods of total duration T1, and the temporal location information of the tumor is divided into n time periods of total duration T2, resulting in n training samples. The point clouds of the training samples are further divided into several pseudo-voxel sub-blocks according to the human projection plane, and K pseudo-voxel sub-blocks are selected based on motion saliency to obtain the temporal feature vector of the tumor motion. The temporal feature vector of the tumor three-dimensional motion trajectory prediction is used as input, and the corresponding tumor temporal location information is used as output to train an attention-enhanced dilated convolutional prediction network. This invention enables high-precision, non-invasive prediction of the three-dimensional tumor motion trajectory.

The utility model discloses a hammerhead fixing device for an automobile steering knuckle drop hammer test, which relates to the technical field of automobile steering knuckle tests and comprises a base, the top of the base is connected with a top plate through a sliding rod and a support, and a first sliding plate and a second sliding plate are respectively slidably mounted on the sliding rod. A rotating shaft is rotatably mounted between mounting frames fixedly mounted on the front side and the rear side of the first sliding plate, worms are arranged at the two ends of the rotating shaft and are in meshed connection with worm wheels, the worm wheels are fixed to the top of a rotating rod, the rotating rod is rotatably mounted on the first sliding plate, a limiting plate is fixedly mounted at the bottom of the rotating rod, and an electromagnet is mounted at the bottom of the first sliding plate; a mechanical structure composed of the rotating shaft, the worm, the worm gear, the rotating rod, the limiting plate and the like is used for auxiliary fixing. Even if the electromagnet loses magnetic force due to power failure or power system failure, the limiting plate can still limit accidental falling of the impact head from the mechanical level, the double-guarantee effect is achieved, and the risk of accidental falling of the impact head is greatly reduced.

The utility model relates to the technical field of coating detection equipment, and discloses a paint film drying time recorder which comprises a recorder body, the outer wall of the recorder body is provided with a display screen, the upper surface of the recorder body is fixedly connected with a sliding rail, the outer wall of the sliding rail is slidably connected with a sliding plate, and the sliding plate is fixedly connected with the display screen. A supporting plate is fixedly connected to the outer wall of the fixing block and the upper surface of the sliding plate, a first supporting shaft is fixedly connected to the interior of the supporting plate, a pressing plate is rotatably connected to the outer wall of the first supporting shaft, a second supporting shaft is fixedly connected to the interior of the pressing plate, and a fixing plate is fixedly connected to the outer wall of the placing block. A lifting assembly is arranged on the outer wall of the fixing block. According to the utility model, the sliding plate, the supporting plate, the supporting shaft I, the pressing plate, the supporting shaft II, the handle and the placing block are matched with one another, so that the preparation device can be kept stable in the test process, and the influence on the accuracy of a test result due to shaking or deviation is avoided.

The utility model relates to the field of penetrometers, and discloses a high-stability standard penetrometer which comprises a supporting seat, a supporting rod is fixedly connected to the upper portion of the supporting seat, a stabilizing frame is arranged on the front side of the supporting rod, a penetrometer is arranged on the inner wall of the front portion of the stabilizing frame, and a center penetrating hammer is arranged on the upper portion of the penetrometer. A supporting mechanism is arranged on the upper portion of the supporting base and comprises a supporting assembly and an auxiliary assembly, the supporting assembly comprises a fixing shell, and the fixing shell is fixedly connected to the upper portion of the supporting base. According to the utility model, the fixing shell is fixed on the supporting seat, and the extension plate is matched with the fixing shell through the limiting piece and the compression spring, so that the supporting plate can be driven to extend out, an instrument can be more stably placed on the ground during working, shaking and deviation are reduced, and the fixing piece of the auxiliary assembly slides in the stabilizing groove to further assist in supporting; the instrument is kept stable in the test process, and the accuracy of test data is improved.

The application discloses an optical receiving end bandwidth test method, system and related equipment, which first performs coarse scanning by a first sweep frequency step and divides the amplitude-frequency response area, then determines a smaller second sweep frequency step according to the transition core area attenuation slope, adopts differential sampling in different areas, effectively reduces frequency point redundancy, shortens test time consumption, accurately captures the amplitude-frequency rapid attenuation characteristics, balances test efficiency and accuracy, and adapts to production line batch test requirements. By combining real-time signal-to-noise ratio adjustment sampling time and Fourier transform average number, the influence of various interference factors can be inhibited; by peak detection, roll-off characteristic determination, matching of a suitable low-pass model for global fitting, random sampling errors can be eliminated, the standard amplitude-frequency response curve can be fitted to the actual characteristics, and the stability and repeatability of bandwidth determination are improved. The method realizes accurate, efficient and stable test of the optical receiving end bandwidth through the organic combination of adaptive non-uniform sweep frequency and model fitting, and improves the test performance.

This utility model relates to the field of building material testing technology, and discloses a clamp for axial tensile testing of concrete specimens. It includes an upper clamping part and a lower clamping part. The upper clamping part includes a first clamping block and a second clamping block, which are detachably connected. The upper part of the specimen is clamped between the first and second clamping blocks. The lower clamping part includes a third clamping block and a fourth clamping block, which are detachably connected. The lower part of the specimen is clamped between the third and fourth clamping blocks. This utility model, through its separate, detachable structure of the upper and lower clamping parts, changes the traditional bolt point contact clamping to surface contact clamping, effectively eliminating local stress concentration and damage to the specimen, while ensuring accurate LVDT displacement monitoring data, significantly improving the reliability and accuracy of axial tensile testing of high-ductility concrete.

The utility model discloses a test mainboard for a DDR (Double Data Rate) memory bank. The test mainboard comprises a PCB (Printed Circuit Board), a CPU (Central Processing Unit) chip and a plurality of DIMM (Dual In-line Memory Module) connectors, the PCB is provided with a first surface and a second surface which are opposite to each other. The CPU chip is arranged on the first surface of the PCB. And the DIMM connectors are arranged on the second surface of the PCB and are used for being connected with the DDR memory banks in an inserting manner. According to the utility model, the DDR memory bank can be independently heated during testing, the temperature of the CPU chip can be ensured to be within a normal range during testing, and long-term continuous operation is facilitated.

The utility model discloses automatic testing and sorting equipment for internal resistance of a battery cell. The automatic testing and sorting equipment comprises a workbench, the bearing assembly comprises a bottom table fixed to the surface of the workbench, a supporting table rotationally connected to the top of the bottom table, a bearing groove fixed to the top end of the supporting table and a laser sensor fixed to the bearing groove, and the section of the bearing groove is of a U-shaped structure; the driving assembly comprises a supporting plate fixed to the surface of the workbench and located on one side of the bottom table and a hydraulic rod fixed to the top end of the supporting plate. The designed bearing assembly and the driving assembly are matched with the upper sorting groove, rapid feeding and discharging of the battery cells can be completed, during feeding, the battery cells only need to be placed on the bearing groove, then the driving assembly is used for pushing the battery cells to the designated position, after testing is completed, the supporting table drives the bearing groove to rotate and face the corresponding sorting groove, and then the battery cells are separated from the sorting groove. And then the driving assembly is used for pushing the battery cells to the corresponding sorting grooves, discharging is completed, through the design, the battery cells can be rapidly fed and discharged, and convenience is provided for personnel.

The utility model embodiment provides a kind of near-eye display equipment display performance test carrier device, for fixing near-eye display equipment, optical testing instrument and adjusting the position of near-eye display equipment, including basic platform, and set on near-eye display equipment carrier platform of basic platform, optical testing instrument carrier platform.Optical testing instrument carrier platform is used to fix optical testing instrument;Near-eye display equipment carrier platform is used to fix near-eye display equipment and adjust the position and pitch angle of the near-eye display equipment, so that the lens optical axis of near-eye display equipment is adjusted to the straight line where the optical testing instrument macro lens optical axis is located.The utility model embodiment can realize the purpose of aligning the optical axis of near-eye display equipment lens and the optical axis of optical testing instrument macro lens.

The utility model belongs to the field of photoelectric testing, and particularly discloses a semiconductor power device testing device which comprises a base body, a device body containing mechanism and a pin inserting module, the device body containing mechanism and the pin inserting module are both arranged on the base body, and when the device body is tested, the pin inserting module is arranged on the base body. The main body part of the device body is located in the device body accommodating mechanism, and the pin part of the device body is connected with the pin plugging module; the device body containing mechanism comprises a temperature control assembly used for heating the device body. Through the structural design of the testing device, the temperature of the device during testing can be monitored, temperature regulation and control can be carried out according to testing requirements, and the accuracy of the testing result of the device body is improved.

The utility model relates to the technical field of torsion testing machines, in particular to an automobile chassis part torsion testing machine which comprises a mounting plate, a cavity is formed in the mounting plate, a support is fixedly mounted on the upper surface of the mounting plate, a chuck is rotatably connected to the upper surface of the cavity, a first fixing block is fixedly mounted on the lower surface of the cavity, and a second fixing block is fixedly mounted on the lower surface of the first fixing block. A first connecting rod is rotationally connected into the first fixing block, a shear fork arm is rotationally connected to the surface of the first connecting rod, and a second connecting rod is rotationally connected to the upper end of the shear fork arm. According to the clamping jaw, the mounting plate, the cavity, the shear fork arm, the chuck and the lead screw structure are arranged, the lead screw rotates to drive the shear fork arm to deform, the shear fork arm drives the chuck to move up and down, rapid adjustment of the clamping jaw is achieved, and the independent clamping jaw can be adjusted more conveniently and rapidly when a special-shaped part needs to be clamped in the using process; therefore, parts can be clamped more stably during testing, and the precision is higher.

The present application relates to aviation fuel control technical field, specifically, it is a kind of aviation fuel control system and control method thereof;Including fuel circulation system and electrical measurement and control system, electrical measurement and control system is used to control the temperature, flow and pressure of circulating fuel in fuel circulation system;Fuel circulation system includes first regulating valve group, explosion-proof electric heater group, heat preservation assembly, pump group, second regulating valve group and temperature measuring assembly, product export is sequentially connected first regulating valve group, explosion-proof electric heater group, heat preservation assembly and pump group between product import, and product import and product export end are equipped with temperature measuring assembly;The pipeline connected between first regulating valve group, explosion-proof electric heater group and the pipeline connected between pump group, product import are communicated, and the pipeline of this communication is connected second regulating valve group;The present application can control the temperature, pressure and flow of fuel into the product under test, help to improve the stable fuel condition for the combustion test of product, improve the accuracy of combustion test.

The utility model discloses a kind of test devices for detecting cable mechanical properties, its technical solutions are: including base, base top is fixed with rack, rectangular cavity is opened in the inside of rack, test movable mechanism is equipped in the inside of rectangular cavity, positioning mechanism is equipped in the bottom of rectangular cavity;Test movable mechanism includes two threaded rods one, a kind of test devices for detecting cable mechanical properties has beneficial effect: through the clamping of multiple clamping jaw and limit disc in measuring movable mechanism and positioning mechanism to cable, it is convenient to automatically adjust according to the diameter of different model cable, improve clamping intensity by the self-locking of thread, prevent that clamping appears relaxation, threaded rod two reverse through sleeve make that two side limit disc further bend the cable clamped by antiskid washer, simultaneously move upwards and drive the cable clamped to stretch, the tensile property of cable bending state is tested, reach the purpose of simultaneously testing bending property and tensile property.

The invention belongs to the technical field of novel storage devices, and particularly relates to a BEOL-compatible adjustable volatile device and a transformation method and application thereof, and the BEOL-compatible adjustable volatile device comprises a bottom electrode, a resistive layer, a tantalum oxide layer and a top electrode which are stacked in sequence; the tantalum oxide layer is thicker than the resistive layer; the bottom electrode, the resistive layer, the tantalum oxide layer and the top electrode all meet the temperature window requirement of BEOL; the adjustable volatile device is converted from a volatile state to a non-volatile state through cooperative regulation and control of operation polarity and current limiting. Compared with the prior art, the method solves the problems that in the prior art, a threshold switching device is poor in compatibility with a CMOS technology, and integration is difficult to achieve under advanced technology nodes. The adjustable volatile device (TaOx-based resistive random access memory RRAM) provided by the scheme not only can be compatible with a BEOL process, but also can realize the conversion of the resistive random access memory from a volatile device to a nonvolatile device through the coordinated regulation and control of operation polarity and current limiting.

The invention discloses a method and equipment for testing the multi-angle inclination fixed rebound strength of a laminated slab, relates to the technical field of laminated slab detection, and aims to solve the problems that the existing laminated slab rebound test is carried out horizontally and cannot reflect the actual inclination working condition, and the existing device is poor in adaptability, unstable in fixation and low in detection precision. The equipment comprises a base, a supporting column, a carrying table, an angle inclination adjusting assembly, a clamping and fixing assembly, a vertical frame, an X-axis adjusting assembly, a Y-axis adjusting assembly, an electric telescopic rod, a springback testing assembly, a perpendicularity calibration assembly, a telescopic assembly and a controller. Multi-angle inclination of the carrying table is achieved through the angle inclination adjusting assembly, the clamping and fixing assembly stably fixes the laminated plate, the perpendicularity calibration assembly ensures that the testing axis is perpendicular to the testing surface, and multi-position testing is completed in cooperation with the X-axis adjusting assembly and the Y-axis adjusting assembly. The device can truly simulate the actual inclination working condition of the laminated slab, is adaptive to laminated slabs of different specifications, improves the fixing stability and detection precision, and guarantees the safety of a building structure.

This invention discloses a detection device for oxygen sensor chip testing, relating to the technical field of oxygen sensor testing equipment. It includes a testing box mounted on a testing platform. The side wall of the testing box has several mounting holes for plug insertion into the oxygen sensor chips. An adjustment pipe connecting to a factory mixed gas pipeline is located on the side of the testing box, and an oxygen pipeline connecting to a factory oxygen supply pipeline is also located on the side of the testing box. Inside the testing box, partitions are slidably arranged along the height direction of the testing box. This detection device for oxygen sensor chip testing, through the use of partitions, flaps, and telescopic components, flexibly achieves zoned isolation control of the testing box, while ensuring full contact between the test gas and the plug. This facilitates rapid and uniform coverage of the sensitive areas of each oxygen sensor chip by the test gas, shortening the response time and improving the consistency and reliability when multiple chips are tested simultaneously.

The utility model relates to a kind of UDP memory card detection sorting device, including moving mechanism and grabbing mechanism, the grabbing mechanism is connected in moving mechanism, the side of moving mechanism is sequentially provided with feeding mechanism, detection mechanism, sorting mechanism along the movement direction of grabbing mechanism, the grabbing mechanism is arrayed and provided with multiple pickup parts towards feeding mechanism;The detection mechanism includes detection structure and detection seat, the detection seat is arrayed and provided with multiple detection sites relative to grabbing mechanism, each described detection site corresponds to one pickup part, the side of the detection seat is provided with stabilizing mechanism towards multiple detection sites, detection structure and detection seat between are provided with travelling mechanism, the detection seat is connected or separated under the action of travelling mechanism, and detection site and detection structure make whole machine height integration, improve detection efficiency and sorting efficiency.

This invention belongs to the field of molecular sieve membrane technology, and discloses a KFI zeolite molecular sieve membrane, its preparation method, and its applications. This invention improves upon the in-situ hydrothermal method by first loading the supporting solution onto a carrier surface via filtration, followed by hydrothermal synthesis, thus obtaining the KFI molecular sieve membrane in a single in-situ synthesis. Compared to conventional methods, this invention shortens the production cycle, eliminates the need for KFI seed crystals, simplifies the steps, reduces costs, and is more suitable for industrial-scale production. Experiments have confirmed that the KFI-type zeolite molecular sieve membrane of this invention exhibits excellent dehydration and separation performance for organic solvents such as acetic acid and ethanol.