Electric Field Measurement in Electrical Discharge Using Electro-Optic Effect

Electric field and temperature measurement using ultra wide bandwidth pigtailed electro-optic probes.

We present pigtailed electro-optic probes that allow a simultaneous measurement of high frequency electric fields and temperature using a unique laser probe beam. This has been achieved by the development of a novel probe design associated with a fully automated servo-controlled optical bench, initially developed to stabilize the electric field sensor response. The developed electro-optic probe...

Kerr electro-optic measurements and nonuniform electric field reconstructions

Two-Dimensional Electric-Field Vector Measurement by a LiTaO(3) electro-optic probe tip.

An electro-optic probe tip that is made from LiTaO crystal to make tangentially two-dimensional electric-field (E-field) vector measurements is presented. We combine a new electro-optic modulation technique and a conventional one to resolve the two E-field components. The new modulation effect on the optical probing beam is caused by rotation of the principal axis the electro-optic crystal, whi...

Three-dimensional electric-field vector measurement with an electro-optic sensing technique.

A new technique for three-dimensional (3D) electric-field (e-field) vector measurement is presented. Three laser beams with different propagation paths in an electro-optic (EO) crystal were used to resolve 3D components of e-field vectors. We adopted a special geometric shape of bismuth silicon oxide EO crystal so that the three beams would propagate within it. A sensitivity of 0.6 V/cm square ...

Application of Kerr electro/optic effect to electric field measurements in transformer oils

Paper presents an original method suitable for measurement of electric field distribution in liquid dielectrics (nanosecond time domain). Electric field is reconstructed in two steps: 1) multiangular laser scanning of the space between electrodes provides projection for each laser beam, 2) using a numerical algorithm called Modified Aritmetic Reconstruction Technique (MART) electric field is re...