Title :
Gallium-arsenide optically isolated electric field sensor for utility and pulsed power applications
Author :
Mazzola, M.S. ; Schoenbach, K.H. ; Peterkin, F.E.
Author_Institution :
Dept. of Electr. & Comput. Eng., Mississippi State Univ., MS, USA
Abstract :
An optically isolated microminiature electric field sensor based on the Franz-Keldysh effect in gallium arsenide is described. The sensor is suitable for a variety of high-voltage remote sensing electric utility applications, such as field mapping in substations, power line voltage measurement and voltage calibration of high-voltage laboratory diagnostics. Data demonstrating absolute calibration of the field sensor at electric fields in GaAs as low as 5 kV/cm is presented. A system that eliminates temperature drift during line-frequency measurements is described.
Keywords :
III-V semiconductors; electric field measurement; electric sensing devices; gallium arsenide; optical isolators; power supplies to apparatus; power system measurement; pulsed power technology; remote sensing; substations; voltage measurement; Franz-Keldysh effect; GaAs; electric utility applications; high-voltage remote sensing; line-frequency measurements; optically isolated electric field sensor; power line voltage measurement; pulsed power applications; substation electric field mapping; temperature drift elimination; voltage calibration; Calibration; Gallium arsenide; Laboratories; Optical sensors; Power industry; Remote sensing; Sensor phenomena and characterization; Substations; Temperature sensors; Voltage measurement;
Conference_Titel :
Pulsed Power Conference, 1995. Digest of Technical Papers., Tenth IEEE International
Conference_Location :
Albuquerque, NM, USA
Print_ISBN :
0-7803-2791-8
DOI :
10.1109/PPC.1995.596508
