DK0490849T3 - Optisk fiberkabel til detektion af en temperaturændring - Google Patents

Optisk fiberkabel til detektion af en temperaturændring

Info

Publication number
DK0490849T3
DK0490849T3 DK91850294.9T DK91850294T DK0490849T3 DK 0490849 T3 DK0490849 T3 DK 0490849T3 DK 91850294 T DK91850294 T DK 91850294T DK 0490849 T3 DK0490849 T3 DK 0490849T3
Authority
DK
Denmark
Prior art keywords
fibre
fibre cable
wax
wire
swellable body
Prior art date
Application number
DK91850294.9T
Other languages
English (en)
Inventor
Erik Arne Bergqvist
Original Assignee
Ericsson Telefon Ab L M
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from SE9004005A external-priority patent/SE9004005D0/xx
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Application granted granted Critical
Publication of DK0490849T3 publication Critical patent/DK0490849T3/da

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K5/00—Measuring temperature based on the expansion or contraction of a material
    • G01K5/32—Measuring temperature based on the expansion or contraction of a material the material being a fluid contained in a hollow body having parts which are deformable or displaceable
    • G01K5/46—Measuring temperature based on the expansion or contraction of a material the material being a fluid contained in a hollow body having parts which are deformable or displaceable with electric conversion means for final indication

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
DK91850294.9T 1990-12-14 1991-11-26 Optisk fiberkabel til detektion af en temperaturændring DK0490849T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9004005A SE9004005D0 (sv) 1990-12-14 1990-12-14 Optisk fiberkabel foer detektering av en temperaturfoeraendring
SE9101237A SE467598B (sv) 1990-12-14 1991-04-24 Optisk fiberkabel foer detektering av en temperaturfoeraendring

Publications (1)

Publication Number Publication Date
DK0490849T3 true DK0490849T3 (da) 1996-01-22

Family

ID=26660938

Family Applications (1)

Application Number Title Priority Date Filing Date
DK91850294.9T DK0490849T3 (da) 1990-12-14 1991-11-26 Optisk fiberkabel til detektion af en temperaturændring

Country Status (5)

Country Link
EP (1) EP0490849B1 (da)
AT (1) ATE129807T1 (da)
DE (1) DE69114251T2 (da)
DK (1) DK0490849T3 (da)
ES (1) ES2089175T3 (da)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19738651A1 (de) * 1997-09-04 1999-03-11 Alsthom Cge Alcatel Vorrichtung zur Ermittlung der Temperatur eines Objekts und Verfahren zur Herstellung einer solchen Vorrichtung
GB0014126D0 (en) 2000-06-10 2000-08-02 Univ Strathclyde Sensor cable
KR100434760B1 (ko) * 2001-12-22 2004-06-07 재단법인 포항산업과학연구원 전력선 온도 측정 장치

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4654520A (en) * 1981-08-24 1987-03-31 Griffiths Richard W Structural monitoring system using fiber optics
GB8704540D0 (en) * 1987-02-26 1987-04-01 Bicc Plc Optical sensors

Also Published As

Publication number Publication date
EP0490849B1 (en) 1995-11-02
ES2089175T3 (es) 1996-10-01
EP0490849A1 (en) 1992-06-17
DE69114251T2 (de) 1996-04-11
ATE129807T1 (de) 1995-11-15
DE69114251D1 (de) 1995-12-07

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