BE794127A - Dispositif sensible a l'intrusion dans un champ magnetique et systeme de detection de celle-ci - Google Patents

Dispositif sensible a l'intrusion dans un champ magnetique et systeme de detection de celle-ci

Info

Publication number
BE794127A
BE794127A BE794127DA BE794127A BE 794127 A BE794127 A BE 794127A BE 794127D A BE794127D A BE 794127DA BE 794127 A BE794127 A BE 794127A
Authority
BE
Belgium
Prior art keywords
intrusion
magnetic field
detection system
device sensitive
sensitive
Prior art date
Application number
Other languages
English (en)
Inventor
D P Erdmann
Original Assignee
Honeywell Inc
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 Honeywell Inc filed Critical Honeywell Inc
Publication of BE794127A publication Critical patent/BE794127A/fr

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/081—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices the magnetic field is produced by the objects or geological structures

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Burglar Alarm Systems (AREA)
  • Measuring Magnetic Variables (AREA)
BE794127D 1972-01-17 1973-02-15 Dispositif sensible a l'intrusion dans un champ magnetique et systeme de detection de celle-ci BE794127A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21810272A 1972-01-17 1972-01-17

Publications (1)

Publication Number Publication Date
BE794127A true BE794127A (fr) 1973-05-16

Family

ID=22813755

Family Applications (1)

Application Number Title Priority Date Filing Date
BE794127D BE794127A (fr) 1972-01-17 1973-02-15 Dispositif sensible a l'intrusion dans un champ magnetique et systeme de detection de celle-ci

Country Status (11)

Country Link
US (1) US3747036A (fr)
JP (1) JPS4880075A (fr)
AU (1) AU462926B2 (fr)
BE (1) BE794127A (fr)
CA (1) CA999355A (fr)
DE (1) DE2301356C2 (fr)
FR (1) FR2168319B1 (fr)
GB (1) GB1363612A (fr)
IT (1) IT974284B (fr)
NL (1) NL174763C (fr)
SE (1) SE385515B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2427328A1 (de) * 1973-06-08 1975-01-02 Honeywell Inc Einbruchsalarmanlage

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE29019E (en) * 1969-01-22 1976-10-26 Yeda Research & Development Co. Ltd. Intruder detection system
US3889262A (en) * 1974-03-07 1975-06-10 Northern Electric Co Electromagnetically resonant device
US4206451A (en) * 1975-11-05 1980-06-03 Honeywell Inc. Intrusion detection system
US4166264A (en) * 1977-12-27 1979-08-28 Honeywell Inc. Intrusion detection transducers
GB2055030B (en) * 1979-07-31 1983-04-27 Matsushita Electric Industrial Co Ltd Circuit for detecting a utensil load placed asymmetrically relative to an induction heating coil
DE3244449C2 (de) * 1981-12-03 1985-03-14 Omron Tateisi Electronics Co., Kyoto Annäherungsschalter
US4598168A (en) * 1983-11-29 1986-07-01 The United States Of America As Represented By The Secretary Of The Army Strain sensitive cable
JPH07112335B2 (ja) * 1986-07-11 1995-11-29 株式会社豊田自動織機製作所 圧縮機における回転検出装置
JPH01155282A (ja) * 1987-12-14 1989-06-19 Toyota Autom Loom Works Ltd 磁気センサ
US5414350A (en) * 1993-01-08 1995-05-09 Ford Motor Company Rotating magnet measuring instrument and method for equalizing coil windings
EP1416635B1 (fr) * 2002-11-01 2012-12-12 Omron Corporation Dispositif capteur
US6727467B1 (en) * 2003-01-31 2004-04-27 W.E.T. Automotive Systems Ag Heated handle and method of forming same
EP2587232B1 (fr) * 2011-10-27 2019-06-05 Universität des Saarlandes Système et procédé de détection de vibrations mécaniques
US10557824B1 (en) * 2015-06-17 2020-02-11 SeeScan, Inc. Resiliently deformable magnetic field transmitter cores for use with utility locating devices and systems
US11194071B2 (en) * 2017-07-19 2021-12-07 Intricon Corporation Interconnect ring for microminiature electrical coil
FR3076657B1 (fr) * 2018-01-05 2021-04-09 Socomec Sa Transformateur de courant ouvrant a noyau magnetique souple
CN112542014A (zh) * 2020-10-27 2021-03-23 国网浙江省电力有限公司杭州供电公司 基于生物感应的电力电缆防外破系统

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US499852A (en) * 1893-06-20 And alfred pfann
US2201146A (en) * 1937-08-14 1940-05-21 Automatic Signal Corp Traffic detector
US2520991A (en) * 1944-09-06 1950-09-05 Yolles Jack Method of making low-loss delay lines
US2885646A (en) * 1953-04-22 1959-05-05 Kendick Mfg Company Inc Electrical transformers
US2975384A (en) * 1954-09-24 1961-03-14 Sprague Electric Co Toroidal inductor combinations
US3319161A (en) * 1966-01-19 1967-05-09 Bunker Ramo Flux gate magnetometer utilizing a thin helical strip of magnetic material as its core
FR1504469A (fr) * 1966-04-29 1967-12-08 Cie Centrale D Etudes Ind Dispositif linéaire à induction pour alimentation électrique en basse tension
US3508238A (en) * 1966-07-18 1970-04-21 Texas Instruments Inc Intrusion detection system
JPS4520871Y1 (fr) * 1967-04-15 1970-08-20
US3489974A (en) * 1968-05-27 1970-01-13 Square D Co Current sensing pulse output transformer
US3541432A (en) * 1968-10-21 1970-11-17 Bunker Ramo Magnetometer capable of operating with a very low input power
US3777200A (en) * 1971-05-14 1973-12-04 Nasa High powered arc electrodes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2427328A1 (de) * 1973-06-08 1975-01-02 Honeywell Inc Einbruchsalarmanlage

Also Published As

Publication number Publication date
CA999355A (en) 1976-11-02
AU5020072A (en) 1974-06-20
FR2168319B1 (fr) 1976-05-14
NL174763B (nl) 1984-03-01
NL174763C (nl) 1984-08-01
DE2301356A1 (de) 1973-07-26
JPS4880075A (fr) 1973-10-26
DE2301356C2 (de) 1981-09-24
GB1363612A (en) 1974-08-14
IT974284B (it) 1974-06-20
AU462926B2 (en) 1975-06-24
US3747036A (en) 1973-07-17
FR2168319A1 (fr) 1973-08-31
NL7300632A (fr) 1973-07-19
SE385515B (sv) 1976-07-05

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Legal Events

Date Code Title Description
RE20 Patent expired

Owner name: HONEYWELL INC.

Effective date: 19930117