纹影干涉诊断等离子体弧

Application of Schlieren Interference to Diagnose Plasma Arc

本文阐述了纹影干涉法诊断等离子体弧的基本原理和实验装置，建立了纹影干涉法诊断等离子体弧的数据处理方法。实验结果表明：这种诊断方法准确、实用，易于进行工作过程中的等离子体弧动态特性的研究．为探讨等离子体弧行为与加工质量间的内在联系，提供了一种最有效的方法．

This paper describes the fundamental principle and experimcntal system of schlieren inter-ference method to diagnose plasma are,and establishes the data processing method,The experimen-tal results show that the diagnosing method is accurate and practlcal,and is effective to study rela-tionship bctween dynamic charact-eristics of plasma are and the machining quality.