Determination of the plasma temperature in a pulsating arc

The distribution functions of arc pulsations depending on the current, gas mass flow rate, and the distance from the cathode in a plasmatron with a fixed arc length have been obtained. The distributions of the plasma emission intensity by the transverse image method have been measured. From these data, the temperature distribution over the arc radius has been determined and the influence of the pulsations on the measurement accuracy has been shown.