ES389444A1 - Perfeccionamientos en los detectores de proximidad. - Google Patents

Perfeccionamientos en los detectores de proximidad.

Info

Publication number
ES389444A1
ES389444A1 ES389444A ES389444A ES389444A1 ES 389444 A1 ES389444 A1 ES 389444A1 ES 389444 A ES389444 A ES 389444A ES 389444 A ES389444 A ES 389444A ES 389444 A1 ES389444 A1 ES 389444A1
Authority
ES
Spain
Prior art keywords
current
input circuit
circuit
output circuit
voltage
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
Application number
ES389444A
Other languages
English (en)
Spanish (es)
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.)
Pyrotector Inc
Original Assignee
Pyrotector 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 Pyrotector Inc filed Critical Pyrotector Inc
Publication of ES389444A1 publication Critical patent/ES389444A1/es
Expired legal-status Critical Current

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
    • G08B13/26—Electrical actuation by proximity of an intruder causing variation in capacitance or inductance of a circuit

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electronic Switches (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Traffic Control Systems (AREA)
  • Burglar Alarm Systems (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
ES389444A 1970-03-11 1971-03-10 Perfeccionamientos en los detectores de proximidad. Expired ES389444A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1865470A 1970-03-11 1970-03-11

Publications (1)

Publication Number Publication Date
ES389444A1 true ES389444A1 (es) 1974-12-16

Family

ID=21789075

Family Applications (1)

Application Number Title Priority Date Filing Date
ES389444A Expired ES389444A1 (es) 1970-03-11 1971-03-10 Perfeccionamientos en los detectores de proximidad.

Country Status (6)

Country Link
JP (1) JPS5132360B1 (enExample)
DE (1) DE2111774B2 (enExample)
ES (1) ES389444A1 (enExample)
FR (1) FR2084457A5 (enExample)
GB (1) GB1322279A (enExample)
ZA (1) ZA711381B (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS48110734U (enExample) * 1972-03-24 1973-12-19
DE3315831A1 (de) * 1983-04-30 1984-10-31 Karl Jürgen 7505 Ettlingen Schwarz Verfahren zur ueberwachung eines abgestellten objektes und schaltungsanordnung hierzu

Also Published As

Publication number Publication date
DE2111774A1 (de) 1971-09-30
GB1322279A (en) 1973-07-04
DE2111774B2 (de) 1976-12-23
FR2084457A5 (enExample) 1971-12-17
ZA711381B (en) 1971-12-29
JPS462629A (enExample) 1971-10-20
JPS5132360B1 (enExample) 1976-09-11

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