Measuring the Armature Position in a Railgun Using Embedded Permanent Magnets

被引：4

作者：

Vanderburg, Andrew M. ^{[1
]}

Stefani, Francis ^{[2
]}

机构：

[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[2] Univ Texas Austin, Inst Adv Technol, Austin, TX 78759 USA

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 2011年 / 39卷 / 01期

关键词：

B-dot; photonic Doppler velocimetry (PDV); railgun;

D O I：

10.1109/TPS.2010.2063715

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

This paper describes how small permanent magnets embedded in a launch package can be used to locate armature position during launch with greater accuracy than can be achieved by detecting the dipole field of the armature itself. Using this technique, we determined armature position in a medium-caliber launcher to within a millimeter of the value measured with photonic Doppler velocimetry, a precise optical technique. This paper describes the technique and some experimental results.

引用

页码：466 / 470

页数：5