9results about How to "Guaranteed test efficiency" patented technology

The utility model relates to the technical field of semiconductor manufacturing, and provides a product separating device and a conveying system. The product separating device comprises a first blocking piece, a second blocking piece and a driving assembly. The first blocking piece and the second blocking piece are arranged in the first direction, and a set distance is formed between the first blocking piece and the second blocking piece in the first direction. The first blocking piece and the second blocking piece move in the second direction, and an included angle is formed between the first direction and the second direction; the driving assembly is connected with the first blocking piece and the second blocking piece and used for driving the first blocking piece and the second blocking piece to move in the second direction. The product separating device can control the feeding rhythm of products, the phenomenon that adjacent products are stacked end to end is improved, and then the phenomenon that materials are stuck in the product conveying process is improved.

The utility model relates to the technical field of optical fiber macro-bending testing, and discloses a novel optical fiber macro-bending testing device which comprises a supporting plate, a sliding plate block and a fixed plate block, the U-shaped wheel is rotationally connected to the upper surfaces of the sliding plate block and the fixed plate block; and the fixed clamp assembly is arranged on the upper surfaces of the sliding plate and the fixed plate, and the surface of the fixed plate is connected with a limiting sliding block. According to the novel optical fiber macrobend testing device, one end of a tested optical fiber is fixed on the right side fixing clamp assembly, the remaining part of the optical fiber is wound around the U-shaped wheel close to the fixing clamp assembly, then the optical fiber is pulled to the U-shaped wheel at the topmost end in the middle to be wound around, and the optical fiber is pulled to the U-shaped wheel close to the left side fixing clamp assembly all the time; finally, the optical fiber penetrates through the fixing clamp assemblies to be fixed, the sliding plate block is pushed, the remaining optical fiber is slightly loosened along with pushing of the sliding plate block to be attached to the limiting sliding block, and the optical fiber is fixed to the fixing clamp assembly on the left side.

This disclosure relates to an image acquisition method, apparatus, computer device, storage medium, and computer program product. The method includes: acquiring an initial image frame and acquiring accumulated image frames from a buffer; merging the initial image frame into the accumulated image frames to obtain a first-updated accumulated image frame, and storing the first-updated accumulated image frame in the buffer; if the difference between the number of image frames corresponding to the first-updated accumulated image frame and the target number of frames is within a preset range, determining the average pixel value of corresponding pixels in multiple image frames of the first-updated accumulated image frame as the pixel value of a second-updated accumulated image frame, storing the second-updated accumulated image frame in the buffer, and repeating the update process until the number of updates meets a preset condition to obtain the acquired image. This method is applicable to image acquisition at high throughput rates, ensuring testing efficiency.

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.

The utility model relates to the technical field of cable test detection, in particular to a robot cable winding torsion test device which mainly comprises a supporting bottom plate, a connecting frame is arranged on one side of the top end of the supporting bottom plate, one end of the connecting frame is connected with a servo motor, and a torsion end clamping block is connected to one side of the connecting frame. A U-shaped groove is formed in the twisting end clamping block, a clamping plate is arranged on one side of the twisting end clamping block, the limiting sliding frame is arranged in front of the top end of the supporting bottom plate, and a protection plate is arranged at the top end of the limiting sliding frame. According to the robot cable winding torsion test device, when a cable is positioned and clamped, the end portion of the cable is bent and penetrates through the U-shaped groove, then the two horizontally protruding sections of the cable are stably clamped, and therefore the fixing area of the cable during fixing is increased; and the contact friction force between the cable and the twisting end clamping block is relieved, so that the cable fixing stability is improved, and the test efficiency of equipment is ensured.

The utility model belongs to the technical field of mechanical property testing of metal materials, and particularly relates to a clamping device suitable for testing the tensile property or the pull-pull low cycle fatigue property of a linear material, an upper clamp and a lower clamp have the same structure and are arranged in a mirroring manner, and tooth-shaped bottom plates in the upper clamp and the lower clamp are opposite left and right; the upper end and the lower end of the sample are respectively clamped by the two tooth-shaped bottom plates in the upper clamp and the lower clamp; one end of each tooth-shaped bottom plate is a clamping end for clamping a sample, the other end of each tooth-shaped bottom plate is a fixing end used for being fixed with a testing machine, teeth with different thicknesses are arranged at the clamping ends in the height direction, and the upper end of the sample is clamped by the thickest teeth at the clamping ends of the two tooth-shaped bottom plates in the upper clamp; the lower end of the sample is clamped by the thickest teeth at the clamping ends of the two tooth-shaped bottom plates in the lower clamp; the tooth-shaped bottom plate is provided with a fixing rod used for being fixed to a testing machine. The linear material tensile property or tensile-tensile low-cycle fatigue test device can be used for carrying out effective tensile or tensile-tensile low-cycle fatigue test on a linear material to obtain accurate tensile property or tensile-tensile low-cycle fatigue property data of the linear material.

The present disclosure provides a U-shield test method for assisting centralized U-shield test management, which can be applied to the fields of big data technology and artificial intelligence technology. The U-shield test method for assisting centralized U-shield test management comprises: obtaining test data information matched with a business test category of a target test U-shield; determining a current occupation state of target test data corresponding to the test data information according to centralized U-shield test information corresponding to the centralized U-shield test management; and performing test on a target test U-shield corresponding to the target test data based on the current occupation state. The present disclosure also provides a U-shield test device, equipment, storage medium and program product for assisting centralized U-shield test management.

The invention discloses a vehicle-mounted working condition-oriented accelerated aging durability test method for a hydrogen fuel cell. The method comprises the following steps: determining a single cycle test strategy for accelerated aging of the hydrogen fuel cell; the test strategy comprises multiple variable load working condition tests, multiple rapid variable load working condition tests and constant current square wave variable load working condition tests on the hydrogen fuel cell in sequence; performing cycle test on the hydrogen fuel cell based on the test strategy, and taking a single cycle test with a preset number of times as a test period; for each test period, performing multi-characteristic parameter test on the battery in the test period, and constructing an aging characteristic parameter vector of the test period based on a test result; constructing a degradation model of the hydrogen fuel cell based on a relationship between the aging characteristic parameter vector and the cycle index and the voltage attenuation; solving the degradation model based on a preset failure criterion to obtain an equivalent failure cycle index of the battery; and predicting the actual vehicle-mounted service life of the battery based on the equivalent failure cycle index and the cycle-mileage conversion coefficient of the typical working condition of the target vehicle. The test period of the battery can be shortened, and the test cost is reduced.

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.