Title :
Optical measurement of induced electric field in water using Pockels device
Author :
Fujiwara, T. ; Yamada, H. ; Shimada, T. ; Sugita, K.
Author_Institution :
Dept. of Electr. Eng., Iwate Univ., Japan
Abstract :
The induced toroidal electric field in water was optically measured by means of a Pockels device. For induction of the electric field based on the transformer principle, multiple primary coils have been used in order to avoid the increase in the primary voltage. A Bi 12SiO20 crystal with a relative permittivity of 56 is used as the Pockels device. Since the electric field inside the crystal becomes much smaller than that in air due to the large permittivity, the electric field measurement has been performed in water in order to increase the sensitivity. The retardations by Pockels effect are on the order of 10-3~10-2, and V/cm, which agrees with those calculated from one-turn voltage within about 20%
Keywords :
Pockels effect; bismuth compounds; electric field measurement; electro-optical devices; water; Bi12SiO20 crystal; Pockels device; Pockels effect retardation; electric field measurement; induced electric field; multiple primary coils; toroidal electric field; transformer principle; water; Coils; Electric variables measurement; Electrostatic measurements; Magnetic field measurement; Optical devices; Optical sensors; Permittivity measurement; Plasma measurements; Toroidal magnetic fields; Voltage;
Conference_Titel :
Properties and Applications of Dielectric Materials, 1991., Proceedings of the 3rd International Conference on
Conference_Location :
Tokyo
Print_ISBN :
0-87942-568-7
DOI :
10.1109/ICPADM.1991.172223
