5results about How to "Avoid missing test" patented technology

This invention relates to the field of semiconductor product testing technology and discloses a high and low temperature testing and conveying device for semiconductor products. The device includes a carrier on which a tray is placed. Several sets of lower pressure plates and upper pressure components are respectively installed on the carrier. The lower pressure plates and upper pressure components are drively connected and move in opposite directions. One set of lower pressure plates has a positive trapezoidal plate, and an inverted trapezoidal plate is also provided inside the testing chamber. The inverted trapezoidal plate cooperates with the positive trapezoidal plate to move the lower pressure plates downwards. By setting relatively movable lower pressure plates and pressure cylinders, the cooperation of the inverted and positive trapezoidal plates during carrier movement drives the automatic clamping of the tray. This forcibly corrects the unevenness of the tray top caused by long-term wear, ensuring that the tray top always remains level. This guarantees that the suction cup can accurately pick up semiconductor products from all positions within a fixed stroke, effectively avoiding missed tests due to partial tray sagging, and significantly improving the integrity and reliability of the test.

The application discloses a mountainous terrain seismic vibration amplification effect precision monitoring method and system based on space-air-ground integrated perception. The method comprises the following steps: performing space-based macroscopic screening by using synthetic aperture radar interferometry technology, and demarcating a key monitoring target area; performing air-based fine modeling by using unmanned aerial vehicle ground simulation flight, and generating a three-dimensional geological digital twin; running a measuring point optimization algorithm based on the three-dimensional geological digital twin, and outputting an optimal measuring point layout scheme; starting an artificial seismic source to emit a sweep frequency signal and synchronously recording a measuring point vibration time history; reconstructing a pure seismic vibration response signal according to the prior coding characteristics of the artificial source signal by using an adaptive variational mode decomposition algorithm; calculating the spectral ratio of the measuring point relative to a bedrock reference point, and generating a seismic vibration amplification coefficient cloud map. The application also provides a system for realizing the above method. The application realizes multi-scale collaborative monitoring from macroscopic screening to microscopic precise point layout, has the advantages of active excitation, intelligent point layout and strong noise suppression capacity, and provides an intuitive decision basis for mountainous area anti-seismic fortification.

The utility model relates to a kind of weak magnetic measurement devices of stress nondestructive testing, including fixed subassembly, first power component, second power component and third power component, fixed subassembly includes base, it is fixedly installed on detection platform, and top seat is provided on base top;First power component, including first linear module, it is set on base, and the sliding end of first linear module is fixed with support platform;Second power component includes second linear module, it is set on top seat, and the sliding end of second linear module is fixed with T-shaped plate;Third power component includes third linear module, it is set on T-shaped plate, and the sliding end of third linear module is fixed with connecting plate, and connecting plate is installed with magnetic permeability measuring instrument.Magnetic permeability measuring instrument can move in three-dimensional space by the synergistic effect of three linear modules, not only can guarantee measurement height uniformity, but also can ensure that workpiece is comprehensively measured, avoid missing measurement, improve measurement accuracy.

This invention discloses an intelligent data entry and fusion governance method and system for multi-sensor monitoring data. The method includes: configuring a semantic template for each data source; standardizing the original monitoring data and generating an input summary within the original observation time window; performing adjustment calculations within the solution time window to construct a multi-dimensional quality vector containing residuals, stability, completeness, timeliness, and cross-source consistency; generating a governance plan based on the multi-dimensional quality vector; executing governance and encapsulating the governance basis package; configuring a push time window and a recalculation time window; determining whether to distribute governance results through a push gate function; and triggering recalculation upon failure. This invention achieves automatic alignment of heterogeneous data through semantic templates, drives a closed-loop governance orchestration with multi-dimensional quality vectors, and combines cross-source consistency verification, phylogenetic evidence chain tracing, and recalculation mechanisms to effectively improve the automation level and reliability of multi-sensor monitoring data access and fusion governance.

The application provides a waveguide transmission line structure-based nonlinear characterization method for wave-absorbing sheet materials and a related device, and belongs to the technical field of radio frequency passive intermodulation testing. The application repeatedly performs an assembling step and a testing step until testing of all to-be-tested wave-absorbing sheets is completed; whether the reflection PIM of more than a set number of wave-absorbing sheets is lower than the sensitivity of a receiving system is judged; if yes, the input power is increased by a step in a set range until the PIM amplitude of the wave-absorbing sheet is located in a PIM testing system testing threshold value; the wave-absorbing sheets without testing results are retested, the assembling step and the testing step are repeatedly performed, and all to-be-tested wave-absorbing sheets are distinguished until the intermodulation level is obtained. The application solves the problem that the accuracy of nonlinear characterization of wave-absorbing sheet materials is not high.