7results about How to "Improve test reliability" patented technology

The application provides a transmission high-low temperature cycle endurance test method and system, which comprises the following steps: collecting basic parameters, key parameters and implicit parameters of the transmission at a physical layer through a dual-mode sensing unit, mapping a physical test state through a digital twin model at a virtual layer to generate a virtual sensing feature set, and corresponding integration into a dual-mode sensing feature tensor; calculating a dynamic adaptation degree between a test requirement feature matrix and the dual-mode sensing feature tensor in real time through a preset multi-field coupling feature discriminator, generating a three-dimensional composite feature map based on the dynamic adaptation degree; constructing a virtual-real linkage adaptive test framework according to the three-dimensional composite feature map; extracting target data from the dual-mode sensing data and the test requirement document and filling it into the corresponding analysis sub-column, synchronously passing through the coupling correlation path in the three-dimensional composite feature map to complete the corresponding endurance test. The application can comprehensively and accurately complete the endurance test, and the test efficiency is improved.

The utility model discloses a device for permanent magnet motor rack test oil cooling control, including the temperature control component for adjusting oil temperature, the oil inlet component for conveying oil to the motor, the oil outlet component for extracting oil in the motor and the oil storage component for storing oil, the temperature control component, oil inlet component, motor, oil outlet component and oil storage component are connected gradually and form closed loop oil circuit, the oil inlet component includes oil inlet pump, and the oil outlet component includes oil extraction pump, the device for permanent magnet motor rack test oil cooling control of the utility model, can effectively control the oil intake and output of motor through setting two oil pumps, and the oil amount in motor is adjusted conveniently, avoids the oil accumulation effectively, and the motor test efficiency and reliability are improved.

The utility model discloses an adjustable slide rail impact performance test device, which comprises a bracket, and a group of parallel guide shafts and a measuring scale are arranged on the bracket along the height direction of the bracket; a sliding block stretches across the guide shaft and moves along the arrangement direction of the guide shaft; the front face of the sliding block is connected with the telescopic sliding rail through a bolt, and the back face of the sliding block is connected with the support through a plunger piece. The mounting height of the plunger part is adjustable; in the initial state, the tail end of the plunger part penetrates through the support and extends into the sliding block so as to limit the testing height of the sliding block. The slide rail is in an extending state; in a termination state, the tail end of the plunger part penetrates through the bracket and is separated from the slide block, and the slide block falls off from the test height under the action of self weight; and the slide rail is in a contracted state. The beneficial effects of the utility model are that the slide rail is driven by the slide block to move to any height on the steel ruler, the performance parameters of the slide rail after being impacted at a determined height are simulated, and the test precision and reliability are improved.

This invention relates to a highly reliable satellite-rocket docking and separation test method based on satellite-rocket separation elements, comprising: refining satellite-rocket separation elements; designing various unlocking and separation test conditions according to different combinations of satellite-rocket separation elements, causing the satellite-rocket separation elements to be pulled to their limits in a direction unfavorable to normal separation, thus completing a satellite-rocket separation unlocking margin test; comparing and determining the influence weight of each satellite-rocket separation element on the separation result based on the test results and the state of the satellite-rocket separation elements; optimizing the satellite-rocket docking and separation test according to the influence weight of each satellite-rocket separation element on the separation result, setting satellite-rocket separation elements with influence weights higher than a preset threshold to a state favorable to normal separation. This invention solves the problem of high probability of test anomalies caused by the designer system and optimizes and improves the satellite-rocket docking and separation test method, thereby improving test reliability.

The application provides a Beidou navigation receiver automatic test control method and device, and relates to the technical field of navigation test. Through automatic generation of a test template, control signal generation and distribution, automatic data acquisition, performance index calculation and report generation, efficient and reliable testing of the Beidou navigation receiver is realized, and the test efficiency is significantly improved, manual operation errors are reduced, test reliability and standardization are enhanced.

The utility model discloses positioning test equipment for a valve positioner. The positioning test equipment comprises a mounting bracket, a pipeline module arranged on the mounting bracket, a laser test assembly arranged in the pipeline module, and a clamping assembly arranged at the top of the mounting bracket and used for fixing the valve positioner. According to the scheme, the mounting bracket, the pipeline module, the laser testing assembly and the clamping assembly are integrated, so that high precision, high stability and high universality of the positioning test of the valve positioner are realized. The laser positioner and the light reflecting assembly are correspondingly arranged, so that the actual opening degree of the valve can be accurately captured, and the testing precision is greatly improved by comparing the actual opening degree with a feedback signal of the positioner; the clamping assembly and the limiting slot structure ensure that the positioner is stably installed, and looseness errors are avoided. Compared with traditional equipment, the structure is simpler, a complex fluid system is not needed, operation is convenient, and testing efficiency and reliability are effectively improved.

The utility model provides a kind of OTA automation testing device, it is related to communication test technical field, the device includes: mechanical arm, pedestal, motion slide rail, test fixture, equipment under test turntable, microwave darkroom and measuring antenna;Wherein, mechanical arm is installed on pedestal, for grabbing and placing equipment under test wireless device;Pedestal is used to carry mechanical arm, and moves along motion slide rail;Motion slide rail is laid on the ground of test scene, carries pedestal;Test fixture is set on equipment under test turntable, for clamping equipment under test wireless device, equipment under test wireless device is fixed on equipment under test turntable in the process of testing;Equipment under test turntable is set inside microwave darkroom, carries and rotates equipment under test wireless device;Measuring antenna is set inside microwave darkroom, for measuring the OTA performance of equipment under test wireless device.