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http://dx.doi.org/10.9766/KIMST.2019.22.1.020

Measurement-based LEEFI Modeling and Experimental Verification for Predicting Firing Waveform of an ESAD  

Kang, Hyungmin (Division of Future Vehicle, Korea Advanced Institute of Science and Technology)
Kim, Joungho (School of Electrical Engineering, Korea Advanced Institute of Science and Technology)
Hwang, Sukhyun (The 4th Research and Development Institute, Agency for Defense Development)
Jung, Myung-suk (The 4th Research and Development Institute, Agency for Defense Development)
Jo, Seyoung (The 4th Research and Development Institute, Agency for Defense Development)
Son, Joongtak (The 4th Research and Development Institute, Agency for Defense Development)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.22, no.1, 2019 , pp. 20-26 More about this Journal
Abstract
In this paper, we propose measurement based numerical resistivity model for low energy exploding foil initiator (LEEFI) of electronic safety and arming device(ESAD). A resistivity model describes a behavior of variable resistance in LEEFI by firing current. The previous resistivity model was based on high energy detonator applications as explosive bridge wire and exploding foil initiator. Therefore, to estimate the voltage, current, and burst time of LEEFI, a resistivity model suitable for LEEFI is needed. For the modeling of resistivity of LEEFI, we propose a specific action based equation which represents a behavior of LEEFI when firing current is applied. To verify the proposed model, we analyze a firing current transmission path to obtain parasitic impedance. We experimentally verify that the proposed resistivity model offers precise estimation for the behavior of variable resistance in LEEFI.
Keywords
Electronic Safety and Arming Device; Firing Current Transmission Path; Low Energy Exploding Foil Initiator;
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