8 results about "Electromagnetic testing" patented technology

The application provides an electromagnetic safety restoring force digital twin training method and system, constructs a test twin space, determines a test equipment group based on electromagnetic test data, and associates real interference data; determines interference dimensions based on equipment properties of each test equipment in the test equipment group, generates false interference data according to the interference dimensions; updates the state of the test equipment according to the real interference data, generates actual data, and directionally replaces the running data of the corresponding dimensions based on the false interference data to generate false data; collects calling information of the training end to the auxiliary plug-in, generates error area guide data according to the comparison information of the calling information, the actual data and the false data, and the auxiliary plug-in one-to-one corresponds to the running data of each dimension, so that the real interference data and the false interference data can be fused, the training complexity is improved, and the disposal efficiency of an operation and maintenance personnel for an electromagnetic safety event is improved.

The present application belongs to the technical field of low-scattering electromagnetic testing, and solves the problems of load bearing, attitude adjustment, power supply, control, cooling and other functional requirements of active targets, and discloses a heavy-load two-dimensional rotating top with active RCS testing, comprising a rotating top cylinder, an elevation assembly and an azimuth assembly in the rotating top cylinder, and an axially-through central passage formed inside, the elevation assembly and the azimuth assembly being arranged on both sides or the periphery of the central passage; the elevation assembly is connected with a lower connecting seat, the connecting seat passage is in communication with the central passage of the rotating top cylinder, the azimuth assembly drives the rotating top shell to rotate, and the top end of the rotating top cylinder is provided with an interface assembly. The present application adopts multi-stage speed reduction and screw transmission technology, has high load bearing capacity and high-precision motion characteristics, and realizes the integration of power supply, liquid supply, signal transmission and other functions through the design of hollow structure and interface plate.

The present invention belongs to the electrical devices sector, and refers, more specifically, to a manufacturing process of inductors and transformers in general, with continuous winding, with or without an iron / ferrimagnetic core. In relation to the current methods, of individual manufacture, the main innovations of this invention are the reduction of manufacturing costs and agility in the process (greater productivity). The central inventive concept lies in the coiling process on a continuous line for the manufacture of inductors and transformers. In addition to coiling, the processes of core formation, assembly, cutting and electromagnetic testing are part of this continuous manufacturing line. The process for manufacturing inductors and transformers with continuous winding is divided into the following stages: I. Solid Bar Formation (1); II. Continuous Coiling (2); III. Assembly and Fixing of Terminals (3); IV. Cutting and Testing (4); and V. Packaging (5).

This invention proposes a rapid cycle life testing system and method for lithium-ion batteries, relating to the field of functional testing, and more specifically to the field of electrical performance testing. The system includes: multiple analysis mechanisms for acquiring various radio electromagnetic test data, correlation parameters, and the average cycle life and previous batch intervals of lithium-ion batteries from each historical production batch; and a cycle life assessment mechanism for intelligently assessing the cycle life of the current lithium-ion battery based on the analysis results from the multiple analysis mechanisms using an intelligent cycle life assessment model. This invention addresses the technical problem of the difficulty in rapidly and accurately testing the cycle life of massive quantities of lithium-ion batteries one by one. By introducing a customized intelligent cycle life assessment model and comprehensively selecting multiple fundamental information sources, an intelligent cycle life numerical analysis mechanism is constructed, thereby solving the aforementioned technical problem.

This application discloses a method, apparatus, processor, and storage medium for testing electromagnetic radiation from a vehicle. The method includes: acquiring electromagnetic radiation data and electrical waveform data generated by the vehicle under the influence of disturbance noise applied by a disturbance generator in the vehicle's test environment, wherein the disturbance generator is deployed in the test apparatus; correlating the electromagnetic radiation data and electrical waveform data to obtain time-correlation data, wherein the time-correlation data is used to represent the correlation between the electromagnetic radiation data and electrical waveform data in the time dimension; and performing electromagnetic testing on the vehicle based on the time-correlation data to obtain electromagnetic test results, wherein the electromagnetic test results are used to represent the relationship between the electromagnetic radiation state of the vehicle under steady-state and transient operating conditions and the normal or abnormal radiation state. This application solves the technical problem of low accuracy in electromagnetic radiation testing of vehicles.

The application discloses a full-system amplitude-phase calibration method and device for a multi-frequency-band common-aperture array, and relates to the technical field of electromagnetic testing and antenna array. The method comprises the following steps: constructing a full-link amplitude-phase error model; deploying an internal multi-frequency calibration probe array; exciting and collecting full-link amplitude-phase data in a frequency band; eliminating cross-frequency-band interference and extracting errors through a frequency band decoupling algorithm; generating calibration weights and completing real-time amplitude-phase correction. The device comprises a multi-frequency-band common-aperture array, an internal calibration probe array, a distributed collection unit, an amplitude-phase adjustment module and a main control module. The application realizes full-link error compensation from a radio frequency front end to a radiation end, suppresses frequency band coupling interference, and has the advantages of high precision, online calibration, adaptation to large-scale arrays and the like, and can be directly integrated into an ultra-wideband plane wave synthesis system and an electromagnetic testing system.

The application discloses a material electromagnetic parameter testing system and a testing method. The system comprises a product conveying device, a material testing device and a control device. The product conveying device comprises a first conveying module and a second conveying module. The first conveying module sucks material plates from a feeding area and places the material plates on a predetermined detection position of the second conveying module. The second conveying module is arranged at the center of the material testing device and is used for adjusting the material plates placed on the predetermined detection position to a detection posture and moving the material plates to the material testing device for electromagnetic testing. The material testing device comprises multiple pairs of testing antennas with different testing frequencies. The control device is used for controlling the product conveying device to convey the material plates and controlling the material testing device to test the material plates to obtain electromagnetic parameters of the material plates. The application can realize full-automatic electromagnetic parameter testing and improve testing efficiency and testing precision.

The application belongs to the technical field of electromagnetic test of DCS signal transmission loop, aims to solve the safety risk of directly using strong interference source in nuclear power plant site and the problem of disconnection between traditional laboratory test and site working condition, and discloses an electromagnetic interference test method for typical DCS signal transmission loop of nuclear power plant, screens the analog signal disturbed in the DCS signal transmission loop system of nuclear power plant as a test object, carries out interference source calibration, determines typical spectrum and intensity, determines the grounding mode of site DCS signal, determines the conductive interference sensitive threshold by frequency injection, carries out electric field radiation interference sweep test, carries out magnetic field radiation interference sweep test, carries out conductive interference sweep test, and determines the safe use distance of different frequency interference. The application provides effective standard for site interference test of nuclear power plant, can accurately evaluate the disturbance degree of weak signal, clearly defines the safe distance of site operation, and improves the working efficiency and operation safety of nuclear power plant.