Electrical current metering with a dual interferometric configuration and serrodyne signal processing

• Type: Article in International Scientific Journal
• Date: 2002

Authors

Jorge, PAS (Author) Other; Caldas, P (Author) Other; Ferreira, LA (Author) Other; Ribeiro, ABL (Author) Other; Santos, JL (Author) FCUP; Farahi, F (Author) Other

Journal

Title: Measurement Science and Technology

Vol. 13

Pages: 533-538

ISSN: 0957-0233

Publisher: Institute of Physics Publishing

Indexing

ISI Web of Knowledge - 4 Citations

Scopus - 4 Citations

Scientific classification

FOS: Engineering and technology > Other engineering and technologies

Other information

Authenticus ID: P-000-PXK

DOI: 10.1088/0957-0233/13/4/316

Abstract (EN): A bulk interferometric configuration for electrical current remote sensing in high voltage environments based on the Faraday effect is described. The combination of Sagnac's reciprocal properties with a Mach-Zehnder processing interferometer in the same sensing head is used to implement serrodyne processing for current sensing. A theoretical analysis based on the Jones matrix is presented. Experimental results that validate the exploited concept are obtained, showing linearity up to 1800 A(rms) and waveform. reproduction at 50 Hz. The possibility of using the proposed interferometric concept to simultaneously fulfil the requirements associated with metering and relaying applications is also addressed.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6