A miniature Hopkinson experiment device based on multistage reluctance coil electromagnetic launch

A set of seven-stage reluctance miniaturized Hopkinson bar electromagnetic launcher has been developed in this paper. With the characteristics of high precision, small size, and little noise pollution, the device complies with the requirements of miniaturized Hopkinson bar for high strain rate. The...

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Bibliographic Details
Published inReview of scientific instruments Vol. 88; no. 9; pp. 094703 - 94709
Main Authors Huang, Wenkai, Huan, Shi, Xiao, Ying
Format Journal Article
LanguageEnglish
Published United States American Institute of Physics 01.09.2017
Subjects
High strain rate
Microcontrollers
Noise pollution
Reluctance
Scientific apparatus & instruments
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Summary:A set of seven-stage reluctance miniaturized Hopkinson bar electromagnetic launcher has been developed in this paper. With the characteristics of high precision, small size, and little noise pollution, the device complies with the requirements of miniaturized Hopkinson bar for high strain rate. The launcher is a seven-stage accelerating device up to 65.5 m/s. A high performance microcontroller is used to control accurately the discharge of capacitor sets, by means of which the outlet velocity of the projectile can be controlled within a certain velocity range.
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ISSN:0034-6748
1089-7623
1089-7623
DOI:10.1063/1.5001844