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Acta Aeronautica et Astronautica Sinica ›› 2024, Vol. 45 ›› Issue (23): 330391.doi: 10.7527/S1000-6893.2024.30391

• Electronics and Electrical Engineering and Control • Previous Articles     Next Articles

Conduction immunity pre-test method based on bulk current injection probe

Hongxu ZHAO1,2, Ziyang LI2, Xudong SHI2()   

  1. 1.College of Safety Science and Engineering,Civil Aviation University of China,Tianjin  300300,China
    2.College of Electronic Information and Automation,Civil Aviation University of China,Tianjin  300300,China
  • Received:2024-03-14 Revised:2024-04-30 Accepted:2024-06-11 Online:2024-12-15 Published:2024-06-17
  • Contact: Xudong SHI E-mail:xdshi@cauc.edu.cn
  • Supported by:
    Tianjin Education Commission Scientific Research Project(2022KJ085)

Abstract:

Conduction immunity pre-test is a test method to realize the function of conduction immunity test through simulation modeling, which can provide electromagnetic compatibility verification for the preliminary design scheme in the research and development stage of airborne equipment. In the absence of detailed design parameters of the bulk current injection probe, a method for measuring the permeability of the probe core based on the lumped parameter circuit model is proposed. Based on this, a three-dimensional simulation model of the bulk current injection probe and its calibration fixture is established. The accuracy of the probe model is verified by the three-port network parameter test. According to the DO160 test standard, a pre-test simulation platform of conduction immunity with bulk current injection probe model as the core is built. The accuracy of the pre-test simulation platform is verified by comparing the coupling voltage of different configurations of aviation cable terminals. The verification results show that the bulk current injection probe and the conduction immunity pre-test simulation platform are highly consistent with the test device.

Key words: conduction immunity, bulk current injection, lumped parameter circuit, finite element simulation, relative permeability

CLC Number: