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FR2316672A1 - Vehicle break-in detector system - uses variation of magnetic field near to electrical conductor whose current varies - Google Patents

Vehicle break-in detector system - uses variation of magnetic field near to electrical conductor whose current varies

Info

Publication number
FR2316672A1
FR2316672A1 FR7520619A FR7520619A FR2316672A1 FR 2316672 A1 FR2316672 A1 FR 2316672A1 FR 7520619 A FR7520619 A FR 7520619A FR 7520619 A FR7520619 A FR 7520619A FR 2316672 A1 FR2316672 A1 FR 2316672A1
Authority
FR
France
Prior art keywords
magnetic field
detector
electrical conductor
whose current
detector system
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.)
Granted
Application number
FR7520619A
Other languages
French (fr)
Other versions
FR2316672B3 (en
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.)
DETHOOR GILBERT
Original Assignee
DETHOOR GILBERT
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 DETHOOR GILBERT filed Critical DETHOOR GILBERT
Priority to FR7520619A priority Critical patent/FR2316672A1/en
Publication of FR2316672A1 publication Critical patent/FR2316672A1/en
Application granted granted Critical
Publication of FR2316672B3 publication Critical patent/FR2316672B3/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
    • B60R25/1004—Alarm systems characterised by the type of sensor, e.g. current sensing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

The vehicle break in detector has a magnetic field variation detector placed near to an electrical conductir (14) whose current, when the breakin is attempted, varies. The detector supplying an electrical signal which is used to trigger an alarm. The detector (16) is a current transformer whose primary is the electrical conductor (14). The detection signal is produced at the terminals of a secondary winding which is cut by the magnetic field created by the current flowing in the primary winding. The transformer has a two part (18, 20) magnetic circuit. The secondary winding (16) being wound round one of these parts. The two parts being applied against each other so as to surround the conductor and to close the magnetic circuit.
FR7520619A 1975-07-01 1975-07-01 Vehicle break-in detector system - uses variation of magnetic field near to electrical conductor whose current varies Granted FR2316672A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7520619A FR2316672A1 (en) 1975-07-01 1975-07-01 Vehicle break-in detector system - uses variation of magnetic field near to electrical conductor whose current varies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7520619A FR2316672A1 (en) 1975-07-01 1975-07-01 Vehicle break-in detector system - uses variation of magnetic field near to electrical conductor whose current varies

Publications (2)

Publication Number Publication Date
FR2316672A1 true FR2316672A1 (en) 1977-01-28
FR2316672B3 FR2316672B3 (en) 1979-08-10

Family

ID=9157330

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7520619A Granted FR2316672A1 (en) 1975-07-01 1975-07-01 Vehicle break-in detector system - uses variation of magnetic field near to electrical conductor whose current varies

Country Status (1)

Country Link
FR (1) FR2316672A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2391868A1 (en) * 1977-05-25 1978-12-22 Eaton Corp FLUID COUPLING DEVICE AND FAN EQUIPMENT
FR2619540A1 (en) * 1987-08-19 1989-02-24 Jaeger Alarm device for a vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2391868A1 (en) * 1977-05-25 1978-12-22 Eaton Corp FLUID COUPLING DEVICE AND FAN EQUIPMENT
FR2619540A1 (en) * 1987-08-19 1989-02-24 Jaeger Alarm device for a vehicle

Also Published As

Publication number Publication date
FR2316672B3 (en) 1979-08-10

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Legal Events

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