THE ELECTRON CURRENT TO A LANGMUIR PROBE IN A FLOWING HIGH-PRESSURE PLASMA

被引：21

作者：

MACLATCHY, CS ^{[1
]}

SMITH, HCL ^{[1
]}

机构：

[1] ACADIA UNIV, DEPT PHYS, WOLFVILLE B0P 1X0, NS, CANADA

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 1991年 / 19卷 / 06期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1109/27.125048

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：

The electron current to a Langmuir probe in a moving high-pressure plasma has been measured and analyzed. The plasma is an atmospheric-pressure propane flame, and the probe's speed relative to the plasma is varied from 10 to 30 ms-1. The current is linearly dependent on the speed and appears to be comprised of two components-one driven by diffusion and the other by convection. A model is devised which can be used to measure the electron density. By comparing the density computed from this model to that measured from the ion current, it has been possible to measure the electron mobility in the flame gases. The value obtained here is in good agreement with theoretical calculations found in the literature.

引用

页码：1254 / 1258

页数：5

共 20 条

[1] THE OPERATION OF A LANGMUIR MACH PROBE IN TOKAMAK-DE-VARENNES [J].

BOUCHER, C ;

MACLATCHY, CS ;

LECLAIR, G ;

LACHAMBRE, JL ;

STONGE, M .

JOURNAL OF NUCLEAR MATERIALS, 1990, 176 :1050-1054

[2] DETERMINATION OF POSITIVE-ION MOBILITIES AND COLLISION CROSS-SECTIONS IN FLAME GASES USING ELECTROSTATIC PROBES [J].

BRADLEY, D ;

IBRAHIM, SMA .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1974, 7 (10) :1377-1390

[3] EFFECTS OF ELECTRICAL FIELDS UPON ELECTRON-ENERGY EXCHANGES IN FLAME GASES [J].

BRADLEY, D ;

IBRAHIM, SMA .

COMBUSTION AND FLAME, 1974, 22 (01) :43-52

[4]

CHAPMAN S, 1970, MATH THEORY NONUNIFO, P219

[5] ELECTRIC PROBES IN STATIONARY AND FLOWING PLASMAS .2. CONTINUUM PROBES [J].

CHUNG, PM ;

TALBOT, L ;

TOURYAN, KJ .

AIAA JOURNAL, 1974, 12 (02) :144-154

[6] ELECTROSTATIC-PROBE STUDIES IN A FLAME PLASMA [J].

CLEMENTS, RM ;

SMY, PR .

JOURNAL OF APPLIED PHYSICS, 1969, 40 (11) :4553-&

[7] ION CURRENT FROM A COLLISION-DOMINATED FLOWING PLASMA TO A CYLINDRICAL ELECTRODE SURROUNDED BY A THIN SHEATH [J].

CLEMENTS, RM ;

SMY, PR .

JOURNAL OF APPLIED PHYSICS, 1970, 41 (09) :3745-&

[8] ION CURRENT TO A SPHERICAL PROBE IN A FLOWING HIGH-PRESSURE PLASMA UNDER THIN-SHEATH CONDITIONS [J].

CLEMENTS, RM ;

SMY, PR .

PROCEEDINGS OF THE INSTITUTION OF ELECTRICAL ENGINEERS-LONDON, 1970, 117 (08) :1721-+

[9] ANOMALOUS CURRENTS TO A SPHERICAL ELECTROSTATIC PROBE IN A FLAME PLASMA [J].

CLEMENTS, RM ;

SMY, PR .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1969, 2 (12) :1731-&

[10]

CLEMENTS RM, 1972, J APPL PHYS, V413, P31

← 1 2 →