| Autor: |
Szente, R. N., Drouet, M. G., Munz, R. J. |
| Předmět: |
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| Zdroj: |
Review of Scientific Instruments; Apr90, Vol. 61 Issue 4, p1259, 4p |
| Abstrakt: |
A novel technique was developed to measure the current distribution of an electric arc foot on the electrodes of a plasma torch. The method is based on the induced voltage generated by the passage of the arc over the measuring probe. The technique is suitable for long operation times in plasma torches. Examples of measurements are given for arcs in pure Ar and in Ar+0.3% CO, moving at 9 m/s at 100 and 140 A, respectively. The peaks in the linear current density were 7.6 and 4.2×104 A/m for Ar and Ar+0.3% CO, respectively. The current density was estimated to be around 104 A/cm2 for Ar and 2×103 A/cm2 for Ar+0.3% CO. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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