Acoustic determination of transition to laminar flow regime of plasma torch.

被引:9
作者
Badie, JM
Bresson, J
Daif, A
Granier, B
机构
[1] UNIV PERPIGNAN,LMAI,F-66860 PERPIGNAN,FRANCE
[2] IMP,CNRS,F-66125 FONT ROMEU,FRANCE
来源
JOURNAL DE PHYSIQUE III | 1996年 / 6卷 / 10期
关键词
D O I
10.1051/jp3:1996194
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A plasma torch allows two how regimes: either a laminar (silent mode) or a turbulent mode (noisy mode) which have different properties. The transition of regime is controlled by parameter change (gas how rate, current are and anode diameter) and followed by a noise degree change. This study deals with the characterization of this transition by acoustic methods. Wave and spectral analysis of control information, radiative energy and acoustic pressure show a frequency peak. The amplitude and frequency of which vary with the running conditions. This frequentail component of acoustic pressure characterizes accurately the regime transition.
引用
收藏
页码:1423 / 1433
页数:11
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