Title :
Optical measurements of the electric field of pulsed streamer discharges in water
Author :
Nakamura, Shigehiro ; Minamitani, Yasushi ; Handa, Taiki ; Katsuki, Sunao ; Namihira, Takao ; Akiyama, Hidenori
Author_Institution :
Grad. Sch. of Sci. & Eng., Yamagata Univ., Yonezawa, Japan
fDate :
8/1/2009 12:00:00 AM
Abstract :
The electric field of a streamer tip of a pulsed streamer discharge in water has been investigated by an optical measuring method. Crossed polarizers were used for the measurement of the electric field using the Kerr effect. Pulsed power with a 300 ns pulse width and 53 kV peak voltages was applied to a pin electrode with a Blumlein circuit. The electric field is obtained from the intensity of the laser beam passing through the second polarizer. The beam intensity was recorded by a highspeed camera with an exposure time of 100 ns. The electric field of the streamer tip, which could not propagate any further, was 320 kV/cm.
Keywords :
discharges (electric); electric field measurement; electrodes; measurement by laser beam; optical Kerr effect; optical polarisers; pulsed power technology; water treatment; Blumlein circuit; Kerr effect; crossed polarizer; electric field measurement; exposure time; high-speed camera; laser beam intensity; optical measuring method; pin electrode; pulsed power; pulsed streamer water discharge; streamer tip; time 100 ns; voltage 53 kV; Electric variables measurement; Kerr effect; Laser beams; Nonlinear optics; Optical polarization; Optical pulses; Pulse circuits; Pulse measurements; Space vector pulse width modulation; Voltage; Streamer discharge, electric field, Kerr effect, crossed polarizers, beam polarization, Laser;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
DOI :
10.1109/TDEI.2009.5211864
