Wavelet analysis of arc noises at threshold currents
A wavelet analysis of the oscillations of the current, voltage, and visible radiation intensity of a vacuum arc discharge with tungsten and cadmium cathodes having a clean surface have been performed for near threshold current. The temporal resolution was better than 1 ns for electric measurements a...
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| Zusammenfassung: | A wavelet analysis of the oscillations of the current, voltage, and visible radiation intensity of a vacuum arc discharge with tungsten and cadmium cathodes having a clean surface have been performed for near threshold current. The temporal resolution was better than 1 ns for electric measurements and better than 5 ns for light intensity measurements. It has been found that for currents close to the threshold current the current voltage, and light intensity oscillations are bursts of duration 17-25 ns for tungsten and 40 ns for cadmium. |
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| DOI: | 10.1109/ISDEIV.2002.1027386 |