DE3685859T2 - Vibrationsempfindlicher transduktor. - Google Patents

Vibrationsempfindlicher transduktor.

Info

Publication number
DE3685859T2
DE3685859T2 DE8686302727T DE3685859T DE3685859T2 DE 3685859 T2 DE3685859 T2 DE 3685859T2 DE 8686302727 T DE8686302727 T DE 8686302727T DE 3685859 T DE3685859 T DE 3685859T DE 3685859 T2 DE3685859 T2 DE 3685859T2
Authority
DE
Germany
Prior art keywords
cable
magnetic member
vibration
transductor
sensitive
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 - Lifetime
Application number
DE8686302727T
Other languages
English (en)
Other versions
DE3685859D1 (de
Inventor
Ian Macalindin
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.)
Geoquip Ltd
Original Assignee
Geoquip Security Systems Ltd
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 GB858531050A external-priority patent/GB8531050D0/en
Application filed by Geoquip Security Systems Ltd filed Critical Geoquip Security Systems Ltd
Publication of DE3685859D1 publication Critical patent/DE3685859D1/de
Application granted granted Critical
Publication of DE3685859T2 publication Critical patent/DE3685859T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G08B13/02—Mechanical actuation
    • G08B13/12—Mechanical actuation by the breaking or disturbance of stretched cords or wires
    • G08B13/122—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a perimeter fence
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
    • G01H11/02—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by magnetic means, e.g. reluctance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
    • G01V1/20—Arrangements of receiving elements, e.g. geophone pattern
    • G01V1/201—Constructional details of seismic cables, e.g. streamers
    • G01V1/208—Constructional details of seismic cables, e.g. streamers having a continuous structure
DE8686302727T 1985-04-17 1986-04-11 Vibrationsempfindlicher transduktor. Expired - Lifetime DE3685859T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8509815 1985-04-17
GB858531050A GB8531050D0 (en) 1985-04-17 1985-12-17 Vibration transducer

Publications (2)

Publication Number Publication Date
DE3685859D1 DE3685859D1 (de) 1992-08-06
DE3685859T2 true DE3685859T2 (de) 1992-12-17

Family

ID=26289136

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686302727T Expired - Lifetime DE3685859T2 (de) 1985-04-17 1986-04-11 Vibrationsempfindlicher transduktor.

Country Status (6)

Country Link
US (1) US4760295A (de)
EP (1) EP0206458B1 (de)
AT (1) ATE77879T1 (de)
AU (1) AU591894B2 (de)
DE (1) DE3685859T2 (de)
GB (1) GB2175771B (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3629904A1 (de) * 1986-09-03 1988-03-17 Marcel Frans Christi Schemmann Vorrichtung mit mechanisch schwingenden bereichen insbesondere zur erzeugung akustischer signale
US4906975A (en) * 1988-11-18 1990-03-06 Mrm Security Systems, Inc. Vibration responsive intrusion detection barrier
US5446446A (en) * 1993-12-09 1995-08-29 Southwest Microwave, Inc. Differential, multiple cell reflex cable intrusion detection system and method
US5448222A (en) * 1993-12-09 1995-09-05 Southwest Microwave, Inc. Coupled transmission line sensor cable and method
DE29613790U1 (de) * 1996-08-09 1996-09-26 Festo Kg Mikroschalter
WO2000079500A1 (en) * 1999-06-21 2000-12-28 Telenetics Corporation Remote meter monitoring system and method
WO2005013223A1 (en) * 2003-08-01 2005-02-10 Senstar-Stellar Corporation Cable guided intrusion detection sensor, system and method
WO2009088155A1 (en) * 2008-01-04 2009-07-16 Rae-Woong Park Crimes and disasters preventing system
US20100109840A1 (en) * 2008-10-31 2010-05-06 Robert Schilling Radio Frequency Identification Read Antenna
GB0922044D0 (en) * 2009-12-17 2010-02-03 Geoquip Ltd Improvements in or relating to sensing apparatus
GB201007730D0 (en) * 2010-05-08 2010-06-23 Geoquip Ltd Sensing apparatus
GB2490179B (en) 2011-06-01 2013-04-24 Detection Technologies Ltd Security system, controller for a security system, transducing cable for a security system and method for detecting a disturbance and determining its location
EP3455834B1 (de) 2016-05-12 2023-09-20 Fiber SenSys, Inc. Durch mimo-kabel geführter eindringungsdetektionssensor
GB2551391A (en) * 2016-06-17 2017-12-20 Crh Fencing & Security Group (Uk) Ltd An apparatus and system for sensing movement

Family Cites Families (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2304738A (en) * 1939-06-29 1942-12-08 Socony Vacuum Oil Co Inc Seismograph
US2807793A (en) * 1954-10-01 1957-09-24 Exxon Research Engineering Co Continuous reelable geophone
US3353040A (en) * 1965-07-20 1967-11-14 Frank R Abbott Electrodynamic transducer
US3375490A (en) * 1965-11-17 1968-03-26 Texaco Inc Flexible cablelike transducer
US3475751A (en) * 1966-07-07 1969-10-28 Executone Inf Sys Inc Remote sound monitoring and control system
GB1230373A (de) * 1967-01-03 1971-04-28
CH485207A (fr) * 1967-11-30 1970-01-31 Ebauches Sa Transducteur courant-force à action linéaire
US3659257A (en) * 1968-11-04 1972-04-25 Woods Hole Oceanographic Inst Continuous magnetic line hydrophone
GB1278249A (en) * 1968-12-10 1972-06-21 Marconi Co Ltd Improvements in or relating to vibration detectors
US3651283A (en) * 1968-12-18 1972-03-21 Audio Arts Inc Loudspeaker having elongated rectangular moving coil
US3579220A (en) * 1969-03-28 1971-05-18 Automatic Sprinkler Corp Alarm system
US3610973A (en) * 1970-01-08 1971-10-05 Westinghouse Electric Corp Vibration pickup device
US3674946A (en) * 1970-12-23 1972-07-04 Magnepan Inc Electromagnetic transducer
NL7101185A (de) * 1971-01-29 1972-08-01
FR2133079A5 (de) * 1971-04-07 1972-11-24 Francais Detection Eletr
GB1350465A (en) * 1971-05-07 1974-04-18 Rank Organisation Ltd Transducer
US3703681A (en) * 1971-05-14 1972-11-21 Honeywell Inc Thin film line sensor for measuring magnetic fields, pressure, vibration or physical displacement
US3689875A (en) * 1971-05-27 1972-09-05 Exxon Production Research Co Flexible geophone
US3846790A (en) * 1973-06-08 1974-11-05 Honeywell Inc Intrusion detection systems
US3836899A (en) * 1973-09-04 1974-09-17 Gte Sylvania Inc Intrusion detection and locating system
US4004268A (en) * 1975-02-06 1977-01-18 Teledyne Industries, Inc. In-line stress/strain detector
US4099168A (en) * 1975-11-06 1978-07-04 Magnum Products, Inc. Intrusion alarm and emergency illumination apparatus and method
AT350649B (de) * 1977-05-26 1979-06-11 Akg Akustische Kino Geraete Mikrophon
US4259550A (en) * 1978-04-15 1981-03-31 Yoshiro Nakamatsu Acoustic device with floating vibrating means
GB2020872B (en) * 1978-05-15 1982-10-13 Spirig Ernst Ambient noise intruder alarm
US4241338A (en) * 1978-05-15 1980-12-23 Ernst Spirig Ambient noise intruder alarm
GB2037535B (en) * 1978-12-14 1983-01-12 Rank Organisation Ltd Moving coil transducers
DE2902545C2 (de) * 1979-01-24 1985-04-04 Akzo Gmbh, 5600 Wuppertal Faden mit Leitschichten
US4307387A (en) * 1979-02-23 1981-12-22 Elliott Brothers (London) Limited Vibration-responsive intruder alarm system
FR2469721A1 (fr) * 1979-11-13 1981-05-22 Honeywell Inc Detecteur d'intrusion
NL7908447A (nl) * 1979-11-20 1981-06-16 Philips Nv Magneetsysteem voor een electroakoestische omzetter.
FR2471113A1 (fr) * 1979-12-05 1981-06-12 Audax Membrane notamment pour transducteur electro-acoustique
GB2072458A (en) * 1980-03-03 1981-09-30 Tape Developments Ltd C Electroacoustic transducers
US4319096A (en) * 1980-03-13 1982-03-09 Winey James M Line radiator ribbon loudspeaker
NL8001592A (nl) * 1980-03-18 1981-10-16 Philips Nv Mfb systeem met een overnamenetwerk.
JPS5717027A (en) * 1980-07-03 1982-01-28 Hitachi Ltd Vibration reducing device of electric machinery
DE3267853D1 (en) * 1981-02-06 1986-01-23 Emi Ltd Device sensitive to pressure waves
US4398972A (en) * 1981-05-11 1983-08-16 Bell Telephone Laboratories, Incorporated Ferritic Fe-Ni magnetic alloys
FR2523339A1 (fr) * 1982-03-12 1983-09-16 Guglielmetti Vg Electro Dispositif de detection a capteur volumetrique a infra-sons et procede de detection par infra-sons
US4523185A (en) * 1982-03-15 1985-06-11 Albert Roth Zoned intrusion display with series-connected sensors
ATE26033T1 (de) * 1982-05-06 1987-04-15 Nat Technical Systems Ueberwachung des auftretens menschlicher aktivitaet in einer umgebung.
GB2123651B (en) * 1982-06-29 1986-08-06 Stanley Kelly Transducers
JPS59501289A (ja) * 1982-07-19 1984-07-19 クラ−ク，アンソニ−　バ−ナ−ド 電磁音響変換器
NL8300671A (nl) * 1983-02-23 1984-09-17 Philips Nv Automatisch egalisatiesysteem met dtf of fft.

Also Published As

Publication number Publication date
US4760295A (en) 1988-07-26
EP0206458A3 (en) 1988-09-21
GB2175771B (en) 1989-01-11
DE3685859D1 (de) 1992-08-06
EP0206458A2 (de) 1986-12-30
EP0206458B1 (de) 1992-07-01
AU591894B2 (en) 1989-12-21
ATE77879T1 (de) 1992-07-15
AU5615286A (en) 1986-10-23
GB2175771A (en) 1986-12-03
GB8608886D0 (en) 1986-05-14

Similar Documents

Publication Publication Date Title
DE3685859D1 (de) Vibrationsempfindlicher transduktor.
ES8605914A1 (es) Perfeccionamientos en los sistemas de deteccion de hurtos mediante marcadores magneticos.
DE3172307D1 (en) Intrusion detection system and detectors useful therein
MY100244A (en) Time-domain induced polarization logging method and apparatus
NO942358L (no) Anordning for overvåkning av elektriske luftledninger
DE3666732D1 (en) Dimensional checking tool
FR2350657A1 (fr) Circuit d'amplification et de polarisation de transducteur electromagnetique
ATE79192T1 (de) Verfahren und vorrichtung zur ueberwachung von bimorphverzerrungsdetektoren.
EP0202900A3 (de) Eindringlingsalarmsystem
IT8209482A0 (it) Sistema per trasformare in segnali elettrici gli spostamenti di una massa di mercurio, per apparecchi di misura ed altro
EP0246780A3 (de) Anzeigegeräte für Magnetfeldrichtung
IT1218995B (it) Dispositivo di controllo dell'ampiezza di un segnale elettrico per un apparecchiatura elettronica digitale e relativo metodo di controllo
GB2215487B (en) Method of and apparatus for monitoring the position of an electrical actual position transducer
IT8422757A1 (it) Sistema per la trasmissione bidirezionale di segnali elettrici su una linea conduttrice e strumento indicatore incorporante un tale sistema
FR2576109B3 (fr) Dispositif de mesure et de transmission de la valeur d'une impedance
GB2013900B (en) Device for and method of producing an electrical signal dependent on the density of an electrically conductive fluid
ES290380Y (es) Dispositivo transductor de sonido en senales electricas
DE3767545D1 (de) Vorrichtung zur bestimmung mechanischer groessen und zur uebertragung des detektierten signals, sowie ihre benutzung.
IT8453636V0 (it) Cavo elettrico particolarmente per il trasferimento di segnali con dispositivo di sicurezza intrinseca atto a segnalare danneggiamenti o tentativi di manomissione
EP0297922A3 (en) Non-destructive method for magnetic measurements of recording disc members

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: GEOQUIP LTD., MELBOURNE, DERBYSHIRE, GB