Optical voltage sensor based on a quartz resonator

Author

Bauerschmidt, Peter ; Lerch, Reinhard

Author_Institution

Siemens AG, Erlangen, Germany

Volume

1

fYear

1996

fDate

3-6 Nov 1996

Firstpage

383

Abstract

An innovative optical instrument transformer for voltage and electric field measurements is proposed. Due to its frequency modulated signal transmission, this newly developed device avoids major drawbacks of formerly suggested optical voltage transformers, which were typically based on intensity modulated systems. The feasibility and the limits of the proposed sensor concept have been studied. The properties of the sensor key element, which is a voltage/frequency (u/f) converting quartz resonator, could be optimized by utilizing appropriate finite element computer modeling including nonlinear mechanical and piezoelectric effects, and by experiments. Several optical detection methods have been investigated to realize the required electrical isolation

Keywords

crystal resonators; electric field measurement; finite element analysis; instrument transformers; optical sensors; quartz; voltage measurement; voltage-frequency convertors; SiO₂; electric field measurement; electrical isolation; finite element computer model; frequency modulated signal transmission; nonlinear mechanical effects; optical detection; optical instrument transformer; optical voltage sensor; piezoelectric effects; quartz resonator; voltage measurement; voltage/frequency converter; Electric variables measurement; Frequency; Instrument transformers; Intensity modulation; Mechanical sensors; Nonlinear optics; Optical modulation; Optical resonators; Optical sensors; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1996. Proceedings., 1996 IEEE

Conference_Location

San Antonio, TX

ISSN

1051-0117

Print_ISBN

0-7803-3615-1

Type

conf

DOI

10.1109/ULTSYM.1996.583997

Filename

583997