plasma temperature measurement

Based on the fluorescence emission spectrum line intensity is proportional to the number of excited particles principle, by measuring the emission of different excited state level of the relative intensity of fluorescence spectrum of Ne gas pulse corona discharge plasma electron temperature with the average peak voltage, the sample pressure change and the effective time of the electron temperature behavior was studied. The results showed that the average electron temperature with the discharge peak voltage, the sample showed a nearly linear pressure trend; and effective electron temperature versus time before the pulse corona discharge current changes.

With the rapid economic and industrial development, environmental pollution is getting worse. Pulsed corona discharge plasma activation of its low energy consumption, high efficiency, wide application, etc. ll.2】, in air pollution control (mainly the desulfurization denitrification) aspects of attention has been widespread. at home and abroad of scholars in this field is more concerned about the end result, namely, the removal efficiency of pollutants 13-6], but excited by pulse corona discharge for gas discharge electron temperature, excitation temperature and electron density of the Vibrational study parameters such as little, and these parameters for the study of pulse corona discharge mechanism and to further improve the pollutant removal efficiency are crucial. Pulsed Corona Discharge Plasma as a one of the parameters of the electron temperature (Wu), to reflect the movement of electrons in gas discharge .

The electron temperature of Ne plasma is obtained in negative pulse corona discharge by measuring the relative fluorescence emission intensity of different energy levels. The change tendency of the electron temperature of Ne plasma with discharge voltage, sample pressure and time is studied. The results indicate an increase of the average electron temperature during the pulse corona discharge when increasing the discharge voltage or decreasing the sample pressure. The available electron temperature and discharge current do not change synchronously with time.