Open AccessInvestigation the Performance of Electro-Optical AC Voltage LiNbO3 Sensor Based on Pockels Effect
Author(s) -
Shahir Fleyeh Nawaf
Publication year - 2013
Publication title -
mağallaẗ tikrīt li-l-ʻulūm al-handasiyyaẗ/tikrit journal of engineering sciences
Language(s) - English
Resource type - Journals
eISSN - 2312-7589
pISSN - 1813-162X
DOI - 10.25130/tjes.21.3.04
Subject(s) - pockels effect , voltage , capacitive sensing , optoelectronics , materials science , electrical engineering , transformer , electrode , electro optic effect , engineering , optics , electric field , physics , quantum mechanics
In contrast to conventional voltage sensor technology (e.g., inductive voltagetransformers or capacitive voltage transformers), optical sensors have inherent andadvantageous features, such as wider bandwidth, larger dynamic range and lighter weight.The aim of this work is to implement an AC voltage sensor based on Pockels electro-opticeffect in LiNbO3 crystal. The research has been conducted in two ways .The first way is theinstallation tested uses external electrodes and a He-Ne laser as a light source, whereas thesecond way is by using the direct voltage application to the metalized sides of the LiNbO3crystal built into an optic cell. Results of both tests shows that by using the direct voltageapplication to the metalized sides of the LiNbO3 crystal built into an optic cell led to betterrepeatability of voltage measurements and corresponds to more realistic conditions.