Title :
Electro-optic sensor for measurement of DC fields in the presence of space charge
Author :
Cecelja, Franjo ; Bordovsky, Michael ; Balachandran, Wamadeva
Author_Institution :
Dept. of Syst. Eng., Brunel Univ., Uxbridge, UK
fDate :
4/1/2002 12:00:00 AM
Abstract :
This paper presents a theoretical analysis and experimental verification of electro-optic sensors used to measure DC electric fields in space charge environments. Both unipolar and bipolar charge environments were analyzed. The results suggest that in both cases the sensor output is linearly dependent on the measured electric field and independent of the density of space charge. To conduct the measurement, however, the prior knowledge of the type of charge present (unipolar-bipolar) is essential
Keywords :
Pockels effect; electric field measurement; electro-optical devices; optical sensors; space charge; DC electric fields; DC field measurement; Pockels effect; bipolar charge environments; electro-optic effect; electro-optic sensor; linear measured electric field dependence; sensor output; space charge; space charge density; space charge environments; unipolar charge environments; Charge measurement; Conductivity; Current measurement; Electric variables measurement; Electrooptic devices; Frequency measurement; Geophysical measurement techniques; Ground penetrating radar; Optical sensors; Space charge;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
