Fibre laser sensor based on a phase-shifted chirped grating for acoustic sensing of partial discharges in power transformers

• Type: Article in International Conference Proceedings Book
• Date: 2010

Authors

Lima, SEU (Author) Other; Frazao, O (Author) FCUP; Farias, RG (Author) Other; Araujo, FM (Author) Other; Ferreira, LA (Author) Other; Miranda, V (Author) FEUP; Santos, JL (Author) FCUP

Conference proceedings International

Title: FOURTH EUROPEAN WORKSHOP ON OPTICAL FIBRE SENSORS

Fourth European Workshop on Optical Fibre Sensors

Porto, PORTUGAL, SEP 08-10, 2010

Indexing

ISI Web of Knowledge - 0 Citations

ISI Web of Science

Scopus - 1 Citation

Scientific classification

FOS: Engineering and technology > Electrical engineering, Electronic engineering, Information engineering

Other information

Authenticus ID: P-003-AZR

DOI: 10.1117/12.865733

Abstract (EN): Partial discharges are a major source of insulation failure in electric power transformers. Their detection can be achieved through the associated acoustic emissions, and this work reports on the investigation of a fibre laser sensor based on a phase-shifted chirped fibre grating for acoustic emission detection in the power transformer environment. The performance of the sensing head is characterized and compared for different surrounding media: air, water and oil.

Language: English

Type (Professor's evaluation): Scientific