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GB1491286A - Monitoring radiating cable systems - Google Patents

Monitoring radiating cable systems

Info

Publication number
GB1491286A
GB1491286A GB26101/75A GB2610175A GB1491286A GB 1491286 A GB1491286 A GB 1491286A GB 26101/75 A GB26101/75 A GB 26101/75A GB 2610175 A GB2610175 A GB 2610175A GB 1491286 A GB1491286 A GB 1491286A
Authority
GB
United Kingdom
Prior art keywords
cable
frequency
monitoring
transmitter
filter
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
GB26101/75A
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 GB26101/75A priority Critical patent/GB1491286A/en
Priority to DE19762623434 priority patent/DE2623434A1/en
Priority to CH751076A priority patent/CH596627A5/xx
Priority to IT24287/76A priority patent/IT1081201B/en
Priority to ES448959A priority patent/ES448959A1/en
Priority to BR7603882A priority patent/BR7603882A/en
Publication of GB1491286A publication Critical patent/GB1491286A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/28—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium using the near field of leaky cables, e.g. of leaky coaxial cables

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Control Of Temperature (AREA)

Abstract

1491286 Detecting faults in radiating cables STANDARD TELEPHONES & CABLES Ltd 19 June 1975 26101/75 Heading H2K A method of monitoring a radiating cable 10, Fig. 1, carrying a frequency f, comprises feeding the cable at a point 12 adjacent the transmitter 11, with a monitoring signal at a different frequency f 1 , placing at a distance x from the transmitter, an electrical load R L1 which is tuned to the frequency f 1 , measuring the voltage applied to the cable at frequency f 1 and detecting any change in the applied voltage on a level detector 18. The cable is fed with the frequency f, via a Tee-junction 12 which incorporates a filter for the monitoring frequency f 1 . The load R L1 is connected to the cable 10 via a filter 15 and inductive and capacitive couplings 20, 22. There may be several monitoring frequencies f 1 , f 2 feeding the cable with corresponding tuned loads at x and y.
GB26101/75A 1975-06-19 1975-06-19 Monitoring radiating cable systems Expired GB1491286A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB26101/75A GB1491286A (en) 1975-06-19 1975-06-19 Monitoring radiating cable systems
DE19762623434 DE2623434A1 (en) 1975-06-19 1976-05-25 LINE MANAGEMENT SYSTEM
CH751076A CH596627A5 (en) 1975-06-19 1976-06-14
IT24287/76A IT1081201B (en) 1975-06-19 1976-06-15 MEANS SUITABLE FOR MONITORING IRRADIATING CABLE SYSTEMS
ES448959A ES448959A1 (en) 1975-06-19 1976-06-16 Monitoring radiating cable systems
BR7603882A BR7603882A (en) 1975-06-19 1976-06-16 MONITORING OF IRRADIANT CABLE SYSTEMS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB26101/75A GB1491286A (en) 1975-06-19 1975-06-19 Monitoring radiating cable systems

Publications (1)

Publication Number Publication Date
GB1491286A true GB1491286A (en) 1977-11-09

Family

ID=10238392

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26101/75A Expired GB1491286A (en) 1975-06-19 1975-06-19 Monitoring radiating cable systems

Country Status (6)

Country Link
BR (1) BR7603882A (en)
CH (1) CH596627A5 (en)
DE (1) DE2623434A1 (en)
ES (1) ES448959A1 (en)
GB (1) GB1491286A (en)
IT (1) IT1081201B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124391A (en) * 1982-07-22 1984-02-15 David J Haviland Electricity supply fault detection
GB2457159A (en) * 2008-02-05 2009-08-12 Ultra Electronics Canada Defen Patching a communication line using magneto-inductive signals

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3240516A1 (en) * 1982-10-30 1984-05-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Device for monitoring line conductor loops and their feeder cables
JPS63265242A (en) * 1987-04-23 1988-11-01 Fuji Photo Film Co Ltd Malticolor image forming method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124391A (en) * 1982-07-22 1984-02-15 David J Haviland Electricity supply fault detection
GB2457159A (en) * 2008-02-05 2009-08-12 Ultra Electronics Canada Defen Patching a communication line using magneto-inductive signals
GB2457159B (en) * 2008-02-05 2010-05-05 Ultra Electronics Canada Defen Method and system for patching a communication line using magneto-inductive signals
AU2009200429B2 (en) * 2008-02-05 2010-05-27 Ultra Electronics Canada Defence Inc. Method and system for patching a communication line using magneto-inductive signals

Also Published As

Publication number Publication date
CH596627A5 (en) 1978-03-15
IT1081201B (en) 1985-05-16
BR7603882A (en) 1977-04-05
ES448959A1 (en) 1977-11-16
DE2623434A1 (en) 1977-01-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee