Title :
Sensing of decomposed gas in SF6 by using an optical fiber and a corner cube prism deposited with a dye film
Author :
Kawamura, Marenori ; Hieda, Shigeru ; Ishii, Koichi ; Sato, Susumu
Author_Institution :
Dept. of Electr. & Electron. Eng., Akita Univ., Japan
Abstract :
An optical remote sensing method for the decomposing reaction of SF6 gas caused by an arc discharge is proposed by using an OTDR (Optical Time Domain Reflectometer) system. The corner cube prism is used as a sensor head and its three total reflection planes are coated with a thin film of methyl orange by a vacuum evaporation method. The methyl orange dye is a color reaction reagent for the decomposed gas of SF6 such as an HF gas. The arc discharge is carried out in a glass container filled with the SF6 gas, and the sensor head connected with the OTDR through the optical fiber is placed in it. The optical sensing system using the OTDR can be applied to monitor and detect some troubles and failures occurring in several gas insulated equipments and their location can be determined
Keywords :
SF6 insulation; arcs (electric); fibre optic sensors; gas sensors; optical films; optical prisms; optical time-domain reflectometry; remote sensing; HF; SF6; arc discharge; color reaction reagent; corner cube prism; decomposed gas; dye film; failure; gas insulation; methyl orange; optical fiber; optical remote sensing; optical time domain reflectometry; vacuum evaporation; Arc discharges; Containers; Glass; Hafnium; Optical fiber sensors; Optical films; Optical reflection; Optical sensors; Remote sensing; Thin film sensors;
Conference_Titel :
Microelectronics and VLSI, 1995. TENCON '95., IEEE Region 10 International Conference on
Print_ISBN :
0-7803-2624-5
DOI :
10.1109/TENCON.1995.496417
