FR2357014B1 - - Google Patents

Info

Publication number
FR2357014B1
FR2357014B1 FR7620411A FR7620411A FR2357014B1 FR 2357014 B1 FR2357014 B1 FR 2357014B1 FR 7620411 A FR7620411 A FR 7620411A FR 7620411 A FR7620411 A FR 7620411A FR 2357014 B1 FR2357014 B1 FR 2357014B1
Authority
FR
France
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
FR7620411A
Other languages
French (fr)
Other versions
FR2357014A1 (fr
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.)
Safran Aircraft Engines SAS
Original Assignee
SNECMA SAS
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 SNECMA SAS filed Critical SNECMA SAS
Priority to FR7620411A priority Critical patent/FR2357014A1/fr
Publication of FR2357014A1 publication Critical patent/FR2357014A1/fr
Application granted granted Critical
Publication of FR2357014B1 publication Critical patent/FR2357014B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/26—Electrical actuation by proximity of an intruder causing variation in capacitance or inductance of a circuit
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2491—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field
    • G08B13/2497—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field using transmission lines, e.g. cable

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Burglar Alarm Systems (AREA)
FR7620411A 1976-06-30 1976-06-30 Dispositif electronique a ligne d'onde pour la detection d'intrusions dans un environnement Granted FR2357014A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7620411A FR2357014A1 (fr) 1976-06-30 1976-06-30 Dispositif electronique a ligne d'onde pour la detection d'intrusions dans un environnement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7620411A FR2357014A1 (fr) 1976-06-30 1976-06-30 Dispositif electronique a ligne d'onde pour la detection d'intrusions dans un environnement

Publications (2)

Publication Number Publication Date
FR2357014A1 FR2357014A1 (fr) 1978-01-27
FR2357014B1 true FR2357014B1 (US08080257-20111220-C00005.png) 1978-12-15

Family

ID=9175218

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7620411A Granted FR2357014A1 (fr) 1976-06-30 1976-06-30 Dispositif electronique a ligne d'onde pour la detection d'intrusions dans un environnement

Country Status (1)

Country Link
FR (1) FR2357014A1 (US08080257-20111220-C00005.png)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2461990A1 (fr) * 1979-07-16 1981-02-06 Snecma Dispositif electronique de detection d'intrusions dans un environnement

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE738032C (de) * 1937-05-05 1943-07-31 Telefunken Gmbh Antenne mit fortschreitenden Wellen
FR890321A (fr) * 1942-02-06 1944-02-04 Telefunken Gmbh Antenne en losange
FR938181A (fr) * 1944-01-05 1948-09-07 Int Standard Electric Corp Combinaison d'un générateur d'oscillations et d'une antenne radioélectrique
FR1180126A (fr) * 1957-07-26 1959-06-02 Trt Telecom Radio Electr Perfectionnements aux dispositifs pour surveiller le trafic routier
US3031643A (en) * 1960-05-16 1962-04-24 Nat Company Inc Transmission line fence burglar alarm
US3375511A (en) * 1965-06-24 1968-03-26 Sylvania Electric Prod Transmission line intruder detection system
US3384887A (en) * 1965-09-03 1968-05-21 Sylvania Electric Prod Intruder detection system
US3818430A (en) * 1973-04-30 1974-06-18 United Aircraft Corp Traffic detector using balun transformer phase detector

Also Published As

Publication number Publication date
FR2357014A1 (fr) 1978-01-27

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse