Design and Implementation of a High-Speed Real-Time Position Detection System in Electromagnetic Coil Launcher

Electromagnetic coil launcher (ECL) is a specific application of electromagnetic launching technology and has broad prospects in the fields of new weapon systems and launching microsatellites. The acceleration force of the projectile in the ECL depends on the current of the driving coil and the proj...

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Bibliographic Details
Published inIEEE transactions on plasma science Vol. 48; no. 9; pp. 1 - 8
Main Authors Cun, Guan Xiao, Wang, Shuai, Guo, Denghua, Guan, Shaohua, Liu, Baolong, Wu, Biao
Format Journal Article
LanguageEnglish
Published New York IEEE 01.09.2020
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Acceleration
Activation
Armature
Coils
cubature Kalman filter (CKF)
Driving ability
electromagnetic coil launcher (ECL)
Electromagnetics
Energy utilization
fiber optic sensor (FOS)
Fiber optics
High-speed optical techniques
Inductance
Launchers
Microsatellites
Optical fibers
Optical sensors
Optical variables measurement
position detection
Position measurement
Position sensing
Projectiles
Real time
Velocity
Weapon systems
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Summary:Electromagnetic coil launcher (ECL) is a specific application of electromagnetic launching technology and has broad prospects in the fields of new weapon systems and launching microsatellites. The acceleration force of the projectile in the ECL depends on the current of the driving coil and the projectile together with the mutual inductance between them, and to maximize the launch coefficient, each drive coil should be energized according to the projectile's movement position. In order to realize the closed-loop control of the ECL and improve the energy utilization, a new position detection system (PDS) based on fiber optic sensor (FOS) is designed in this article, which can obtain the armature displacement and velocity in real time during the launch process. Then, the main factors influencing the detection results are analyzed and studied. Finally, after experimental verification, the PDS designed in this article has an error of 4.2% and 1.41% in the measurement of the armature position and velocity, respectively. The results are of great significance to the realization of ECL engineering.
ISSN:0093-3813
1939-9375
DOI:10.1109/TPS.2020.3019045