STUDY OF OPTICAL MEASUREMENTS OF ELECTRIC FIELD DISTRIBUTION IN DIELECTRIC LIQUIDS
Project/Area Number  03650231 
Research Category 
GrantinAid for Scientific Research (C).

Research Field 
電力工学

Research Institution  EHIME UNIVERSITY 
Principal Investigator 
ARII Kiyomitsu FACULTY OF ENGINEERING,EHIME UNIVERSITY,PROFESSOR, 工学部, 教授 (20036403)

CoInvestigator(Kenkyūbuntansha) 
FUJII Masaharu FACULTY OF ENGINEERING, EHIME UNIVERSITY, RESEARCH ASSOCIATE, 工学部, 助手 (00127911)

Project Fiscal Year 
1991 – 1992

Project Status 
Completed(Fiscal Year 1992)

Budget Amount *help 
¥1,800,000 (Direct Cost : ¥1,800,000)
Fiscal Year 1992 : ¥1,200,000 (Direct Cost : ¥1,200,000)
Fiscal Year 1991 : ¥600,000 (Direct Cost : ¥600,000)

Keywords  KERR EFFECT / 2 AND 3 DIMENSION ELECTRIC FIELD VECTOR / NONUNIFORM ELECTRIC FIELD / NITROBENZENE / CT METHOD / HENE LASER / カー効果 / 2,3次元電界ベクトル / 不平等電界分布 / ニトロベンゼン / CT法 / HeNeレーザ光源 / 電界ベクトル / He‐Neレーザ光源 / 平等電界 / カ効果 / 三次元電界ベクトル測定 / 電界強度分布測定 
Research Abstract 
(1)Measurement of electric field distribution The Kerr optical method which is developed in measurement of electric filed has been used in this study. Using CT method, we could depict the field map in nitrobenzene for the special plane in which field directions are all the same, but their intensity are not constant along laser path. One of such planes is the plane which is vertical to the center axes of two sphere electrodes at the bisect point. The other plane is one just on the plane electrode countered a sphere electrode. Measured values of field strength includes errors below 10% compared to calculated values. (2)Measurement of electric field vector One of 2dimensional field vectors is appeared between coaxial cylinders. The direction and strength of the vector could be measured within 10% error under pulsed applied fields. To extend the method to 3dimensional measurement, deference of two refractive indexes, for normal and abnormal light, could be related to field intensity and the angle between the vector and light. A simplified equation for the relation has been found. In 3dimensional measurement, laser beam was passed through the test cell for directions which was perpendicular to each other. The angle B between the horizontal axis and the projected vector to vertical plane to the laser was measured by the method of 2dimensional measurement. The vector components of 3dimensional vector were calculated by two B's. The errors were in the 10 degrees in the direction and 5% in the intensity. The measurements of field vector distribution in 3dimension should be future work.

Report
(4results)
Research Output
(17results)