APPLICATION OF A QUADRUPLE PROBE TECHNIQUE TO MPD THRUSTER PLUME MEASUREMENTS

被引：22

作者：

BURTON, RL ^{[1
]}

DELMEDICO, SG ^{[1
]}

ANDREWS, JC ^{[1
]}

机构：

[1] PHILLIPS LAB, EDWARDS AFB, CA 93524 USA

来源：

JOURNAL OF PROPULSION AND POWER | 1993年 / 9卷 / 05期

关键词：

D O I：

10.2514/3.23688

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

A new quadruple Langmuir probe diagnostic technique is applied to the plume of a pulsed magnetoplasmadynamic (MPD) thruster with argon propellant. The probe permits simultaneous measurement of electron temperature T(e), density n(e), and ion now velocity u in the exhaust stream. For distances of 3-25 cm from the thruster face, T(e) is 8-1.5 eV, n(e) is 4.8-1.2 x 10(19) m-3, and u is 0.7-1.8 x 10(4) m/s. The measurements suggest that the plume is well-collimated, and that the ion temperature is significantly higher than the electron temperature, consistent with an ion-conduction model of the thruster.

引用

页码：771 / 777

页数：7

共 23 条

[1] THE COLLECTION OF POSITIVE IONS BY A PROBE IMMERSED IN A PLASMA [J].