Temperature measurement of low-current discharges based on N2 (2+) molecular emission spectra

Author

Xiao, A. ; Rowland, S.M. ; Whitehead, J.C. ; Tu, X.

Author_Institution

Sch. of Electron. & Electr. Eng., Univ. of Manchester, Manchester, UK

fYear

2012

fDate

14-17 Oct. 2012

Firstpage

191

Lastpage

194

Abstract

A series of experiments has been carried out to determine the gas temperature of low current (<; 5 mA) discharges in ambient conditions. The measurement is based on optical emission spectroscopy (OES) analysis using N₂ (2+) molecular emission spectra of the air discharge. Temperatures of discharges of different current levels with various arc lengths have been measured and analysis has been carried out to determine the relationships between discharge temperatures, discharge currents and arc lengths. Between lengths of 2 and 6 mm, and currents of 3 and 4.5 mA, predictable temperature variations were found between 1200 and 1800 k.

Keywords

arcs (electric); plasma diagnostics; plasma temperature; plasma transport processes; temperature measurement; N₂ (2+) molecular emission spectra; OES analysis; air discharge; ambient conditions; arc lengths; current levels; discharge currents; discharge temperatures; gas temperature; low-current discharges; optical emission spectroscopy analysis; temperature measurement; Current measurement; Discharges (electric); Fault diagnosis; Plasma temperature; Resistors; Temperature measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena (CEIDP), 2012 Annual Report Conference on

Conference_Location

Montreal, QC

ISSN

0084-9162

Print_ISBN

978-1-4673-1253-0

Electronic_ISBN

0084-9162

Type

conf

DOI

10.1109/CEIDP.2012.6378753

Filename

6378753