SE8007903L - Intrangsdetektoranleggning - Google Patents

Intrangsdetektoranleggning

Info

Publication number
SE8007903L
SE8007903L SE8007903A SE8007903A SE8007903L SE 8007903 L SE8007903 L SE 8007903L SE 8007903 A SE8007903 A SE 8007903A SE 8007903 A SE8007903 A SE 8007903A SE 8007903 L SE8007903 L SE 8007903L
Authority
SE
Sweden
Prior art keywords
wires
tube
electrically conductive
length
electret
Prior art date
Application number
SE8007903A
Other languages
Unknown language ( )
English (en)
Inventor
L R Wold
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 SE8007903L publication Critical patent/SE8007903L/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/01—Electrostatic transducers characterised by the use of electrets
    • H04R19/016—Electrostatic transducers characterised by the use of electrets for microphones
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
    • G08B13/1654—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems
    • G08B13/169—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems using cable transducer means
    • 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
    • G08B13/26—Electrical actuation by proximity of an intruder causing variation in capacitance or inductance of a circuit

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Burglar Alarm Systems (AREA)
SE8007903A 1979-11-13 1980-11-11 Intrangsdetektoranleggning SE8007903L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9365379A 1979-11-13 1979-11-13

Publications (1)

Publication Number Publication Date
SE8007903L true SE8007903L (sv) 1981-05-14

Family

ID=22240062

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8007903A SE8007903L (sv) 1979-11-13 1980-11-11 Intrangsdetektoranleggning

Country Status (5)

Country Link
BE (1) BE886110A (sv)
DE (1) DE3042358A1 (sv)
FR (1) FR2469721A1 (sv)
GB (1) GB2063537A (sv)
SE (1) SE8007903L (sv)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0206458B1 (en) * 1985-04-17 1992-07-01 Geoquip Security Systems Limited Vibration-sensitive transducer
GB2182182B (en) * 1985-04-24 1989-06-28 Sound Special Services Limited Intrusion detecting device

Also Published As

Publication number Publication date
FR2469721A1 (fr) 1981-05-22
BE886110A (fr) 1981-03-02
DE3042358A1 (de) 1981-05-14
GB2063537A (en) 1981-06-03

Similar Documents

Publication Publication Date Title
MX150123A (es) Mejoras en un codificador para producir senales electricas de salida en respuesta de una condicion sujeta a comprobacion
FR2329031A1 (fr) Systeme de detection d'intrusion
SE7811498L (sv) Anordning for avkenning och behandling av elektriska signaler
BR7801210A (pt) Gerador de sinais de direcao e de interrupcao
FR2315686A1 (fr) Detecteur de proximite pour detecter la presence d'un article
SE7707012L (sv) Opto-elektriskt stralningsavsoknings- och detekteringssystem
IT1077324B (it) Sistema di misurazione di corrente particolarmente impiegabile come sistema di rivelazione di dispersioni a massa e dispositivo funzionale equipaggiato con un sistema di questo tipo,ad esempio un interruttore di dispersione a massa
FR2512962B1 (fr) Circuit de detection de l'existence d'un signal d'information
NL8007081A (nl) Signaaldetectieschakeling.
BE873841A (fr) Assemblage de capteur magnetique
FR2492533B1 (fr) Generateur de signal de detection de position
NO143246C (no) Signalgiveranlegg.
IT7925368A0 (it) Rivelatore per accertare la presenza di un segnale elettrico con prestabilite proprieta'.
FR2535568B1 (fr) Circuit de detection de signal
SE8007903L (sv) Intrangsdetektoranleggning
ATE72906T1 (de) Sicherungszaun mit ueber sensoren an pfosten befestigten sicherungsdraehten.
SE8700442D0 (sv) Detektering med hjelp av elektriska felt av forendring i rumslig konfiguration
SE7809876L (sv) Signaldetekteringsanordning
SE7809877L (sv) Signaldetekteringsanordning
FR2599515B1 (fr) Capteur de conductivite detectant a distance
BR7902641A (pt) Transdutor de pressao tendo sensores piezoresistivos blindados eletricamente
JPS55144557A (en) Surface potentiometer
BE887059A (fr) Montage detecteur de signaux annonciateurs du type courant alternatif
SU477378A1 (ru) Устройство дл определени направлени движени грозовых центров
AT352802B (de) Fernsehsignalkennschaltung

Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 8007903-1

Format of ref document f/p: F