| Journal: | Brazilian journal of physics |
| Database: | PERIÓDICA |
| System number: | 000334083 |
| ISSN: | 0103-9733 |
| Authors: | Khatun, Hasina1 Sharma, A.K1 Barhai, P.K2 |
| Institutions: | 1Central Electronics Engineering Research Institute, Microwave Tubes Area, Pilani, Rajasthan. India 2Birla Institute of Technology, Applied Physic Department, Jaipur, Rajasthan. India |
| Year: | 2010 |
| Season: | Dic |
| Volumen: | 40 |
| Number: | 4 |
| Pages: | 450-453 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental |
| English abstract | The electrical and spectral characteristics of a dielectric barrier discharge (DBD) are experimentally investigated in a sealed off coaxial cylinder filled with nitrogen at a pressure of 10 mbar. The discharge is a transient diffused glow at low frequency alternating voltage (60 Hz) and changes to a filamentary mode at high frequency alternating voltage (35 kHz). In case of pulsed voltage, the discharge is always transient diffused glow at any frequency. The intensity of a second positive system (SPS) of the nitrogen molecule has been also measured to characterize the discharge excitation. The effective vibrational temperature is estimated from the SPS vibrational band, Δv = -2. It is concluded that the intensity of the SPS of the nitrogen and the effective vibrational temperature depends upon the reduced electric field and the energy consumed per cycle by the device |
| Disciplines: | Física y astronomía, Química |
| Keyword: | Optica, Teoría cinética y plasmas, Fisicoquímica y química teórica, Descarga dialéctrica de barrera, Sistema segundo positivo, Temperatura vibracional efectiva |
| Keyword: | Physics and astronomy, Chemistry, Kinetic theory and plasma, Optics, Physical and theoretical chemistry, Dielectric barrier discharge, Second positive system, Effective vibrational temperature |
| Full text: | Texto completo (Ver HTML) |
