OPTICAL FIBER THERMAL SENSOR - TOSHIBA MITSUBISHI ELEC INC

Title:

OPTICAL FIBER THERMAL SENSOR

Document Type and Number:

WIPO Patent Application WO/2013/183126

Kind Code:

A1

Abstract:

The present invention is an optical fiber thermal sensor that implements thermal monitoring functionality in a sandwich busbar interphase insulating material, wherein the optical fiber thermal sensor is formed by an optical fiber cable being accommodated in a housing made from an ultrathin sheet using insulating material equal to or better than the sandwich busbar interphase insulating material. A plurality of ultrathin cylindrical members made from the same material as a housing material are accommodated in a plurality of locations in the housing, and a plurality of sensing rings are formed by winding an optical fiber cable onto each of the plurality of ultrathin cylindrical members to at least a length corresponding to the axial resolution without anchoring the optical fiber cable. The temperature at the plurality of locations is measured by the plurality of sensing rings. The housing-side face is silicon sealed, and the entire surface of the housing is sealed with a sealing member made of a silicon-based liquid insulating material.

Inventors:

HASHIMOTO EIJI (JP)
DOJO KOJI (JP)
OBATA TAKESHI (JP)

Application Number:

PCT/JP2012/064525

Publication Date:

December 12, 2013

Filing Date:

June 06, 2012

Export Citation:

Click for automatic bibliography generation Help

Assignee:

TOSHIBA MITSUBISHI ELEC INC (JP)
KITASHIBA ELECTRIC CO LTD (JP)
HASHIMOTO EIJI (JP)
DOJO KOJI (JP)
OBATA TAKESHI (JP)

International Classes:

G01K11/12; G01K1/14; H02B3/00

Foreign References:

JP2002081998A	2002-03-22
JPH0420823A	1992-01-24
JPH09130927A	1997-05-16
JPH03256518A	1991-11-15
JP2010129406A	2010-06-10
JP2006254623A	2006-09-21
JPH07151809A	1995-06-16
JPH084499B2	1996-01-24
JPH07181086A	1995-07-18
JP2000356473A	2000-12-26

Other References: