Title :
Lithium niobate sensor for measurement of DC electric fields
Author :
Cecelja, Franjo ; Bordovsky, Michael ; Balachandran, Wamadeva
Author_Institution :
Dept. of Syst. Eng., Brunel Univ., Uxbridge, UK
fDate :
4/1/2001 12:00:00 AM
Abstract :
The paper presents a theoretical analysis and experimental verification of a lithium niobate electrooptic sensor for measurement of DC electric fields in a space charge environment. Both unipolar and bipolar charge environments were investigated. In both cases the sensor output is linearly dependent on the measured electric field and independent of the density of space charge. Temperature stability of the sensor was analyzed and a novel compensation model is proposed
Keywords :
Pockels effect; calibration; compensation; electric field measurement; electro-optical devices; lithium compounds; optical polarisers; optical sensors; polarimetry; space charge; thermal stability; DC electric field measurement; Jones calculus; LiNbO3; Pockels effect; bipolar charge environment; calibration; compensation model; electrooptic sensor; polarimetric scheme; space charge environment; temperature stability; unipolar charge environment; Charge measurement; Current measurement; Dielectric measurements; Electric variables measurement; Electromagnetic measurements; Lithium niobate; Optical sensors; Probes; Space charge; Temperature sensors;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
