GB1525000A - Optical fibre testing - Google Patents

Optical fibre testing

Info

Publication number
GB1525000A
GB1525000A GB4981675A GB4981675A GB1525000A GB 1525000 A GB1525000 A GB 1525000A GB 4981675 A GB4981675 A GB 4981675A GB 4981675 A GB4981675 A GB 4981675A GB 1525000 A GB1525000 A GB 1525000A
Authority
GB
United Kingdom
Prior art keywords
fibre
break
optical fibre
passed
optical
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB4981675A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB4981675A priority Critical patent/GB1525000A/en
Priority to AU19953/76A priority patent/AU1995376A/en
Publication of GB1525000A publication Critical patent/GB1525000A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/4469—Security aspects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/16—Special arrangements for conducting heat from the object to the sensitive element
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides

Abstract

1525000 Testing optical fibres STANDARD TELEPHONES & CABLES Ltd 4 Dec 1975 49816/75 Headings G1A and G1N To determine the position of a break in a sheathed optical fibre, optical radiation is passed along the fibre to cause a temperature rise at the break and the sheath is monitored along its length to locate the resulting temperature gradient. The monitoring may be effected by a thermal imaging camera, e.g. a pyro-electric vidicon camera, or by passing the fibre through a ring of infrared detectors; alternatively the fibre may be passed through a small, continuously replenished bath provided with a thermocouple.
GB4981675A 1975-12-04 1975-12-04 Optical fibre testing Expired GB1525000A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4981675A GB1525000A (en) 1975-12-04 1975-12-04 Optical fibre testing
AU19953/76A AU1995376A (en) 1975-12-04 1976-11-24 Fracture location in optical fibres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4981675A GB1525000A (en) 1975-12-04 1975-12-04 Optical fibre testing

Publications (1)

Publication Number Publication Date
GB1525000A true GB1525000A (en) 1978-09-13

Family

ID=10453645

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4981675A Expired GB1525000A (en) 1975-12-04 1975-12-04 Optical fibre testing

Country Status (2)

Country Link
AU (1) AU1995376A (en)
GB (1) GB1525000A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991003756A1 (en) * 1989-09-04 1991-03-21 British Telecommunications Public Limited Company Remote end detection
GB2251941A (en) * 1989-09-04 1992-07-22 British Telecomm Detection of remote end of an optical fibre
EP1235089A1 (en) * 2001-02-27 2002-08-28 Marc Voet Optical cable for measuring temperature and/or extension
CN107621355A (en) * 2017-09-29 2018-01-23 宁夏华鑫融通科技有限公司 Plastic optical fiber breaking point detection device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991003756A1 (en) * 1989-09-04 1991-03-21 British Telecommunications Public Limited Company Remote end detection
GB2251941A (en) * 1989-09-04 1992-07-22 British Telecomm Detection of remote end of an optical fibre
GB2251941B (en) * 1989-09-04 1993-04-14 British Telecomm Remote end detection
US5248128A (en) * 1989-09-04 1993-09-28 British Telecommunications Public Limited Company Remote end detection
EP1235089A1 (en) * 2001-02-27 2002-08-28 Marc Voet Optical cable for measuring temperature and/or extension
BE1013983A3 (en) * 2001-02-27 2003-01-14 Voet Marc Optical cable for the measurement of temperature and / or stretch.
CN107621355A (en) * 2017-09-29 2018-01-23 宁夏华鑫融通科技有限公司 Plastic optical fiber breaking point detection device
CN107621355B (en) * 2017-09-29 2024-03-19 宁夏华鑫融通科技有限公司 Plastic optical fiber breakpoint detection device

Also Published As

Publication number Publication date
AU1995376A (en) 1978-06-01

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee