Numerical simulation and experimental study of the impact of an early-time HEMP field on an engine speed acquisition system

Article type: Research Article

Authors: Zhou, Dong^a; | Wei, Min-Xiang^a | Shi, Li-Hua^b | Cao, Jie^a

Affiliations: [a] Nanjing University of Aeronautics and Astronautics, Nanjing, China | [b] PLA University of Science and Technology, Nanjing, China

Correspondence: [*] Corresponding author: Dong Zhou, Nanjing University of Aeronautics and Astronautics, Nanjing, China. Tel.: +86 18761850277; E-mail: dongzhouv587@nuaa.edu.cn

Abstract: The mechanism of electromagnetic interference (EMI) is studied for an engine speed acquisition system in this paper. The effect of states and terminal loads is analyzed for the interference signal, which is simulated by using a commercial software. The oscillation of the voltage interference signal is produced by the speed sensor under the radiation of high-altitude nuclear electromagnetic pulse (HEMP), which has been validated by both simulation and experiment. The interference signal can be collected by the speed acquisition system and the normal operation of the engine will be obstructed. The GTEM cell is used for producing the plane wave for the experiment and the speed acquisition controller is used to test the ability of acquisition for interference signals.

Keywords: Speed acquisition, EMI, HEMP, speed sensor

DOI: 10.3233/JAE-180131

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 61, no. 3, pp. 403-417, 2019