JPS5756723A - Flame detector - Google Patents

Flame detector

Info

Publication number
JPS5756723A
JPS5756723A JP13192880A JP13192880A JPS5756723A JP S5756723 A JPS5756723 A JP S5756723A JP 13192880 A JP13192880 A JP 13192880A JP 13192880 A JP13192880 A JP 13192880A JP S5756723 A JPS5756723 A JP S5756723A
Authority
JP
Japan
Prior art keywords
pulse
voltage
circuit
output voltage
detector
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.)
Pending
Application number
JP13192880A
Other languages
Japanese (ja)
Inventor
Shigeru Matsumoto
Hiroaki Mamiya
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP13192880A priority Critical patent/JPS5756723A/en
Publication of JPS5756723A publication Critical patent/JPS5756723A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

PURPOSE:To improve reliability by ANDing the pulse output voltage of a UL detector with the pulse output voltage of a monostable multivibrator circuit and triggering an alarm device. CONSTITUTION:In the monitoring state, a UL radiator 9 radiates UL to a UL detector 3. In response to this UL, the detector 3 outputs pulse voltage. In response to this voltage, the 1st monostable multivibrator circuit 4 operates and outputs the pulse voltage of prescribed pulse width, thereby lighting a display device 10. In response to the output voltage of the circuit 4, the 2nd monostable multivibrator circuit 5 operates and the pulse voltage of the prescribed pulse width is inputted to an AND circuit 6, but an alarm device 7 is not triggered. When the UL of a flame by the outbreak of a fire is made incident to the device 3, pulse voltage is outputted continuously in a short time in addition to the pulse voltage of the device 9 to the device 3, and the output voltage of the circuit 5 and the output voltage of the device 3 are inputted to the circuit 6, by which the device 7 is triggered.
JP13192880A 1980-09-22 1980-09-22 Flame detector Pending JPS5756723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13192880A JPS5756723A (en) 1980-09-22 1980-09-22 Flame detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13192880A JPS5756723A (en) 1980-09-22 1980-09-22 Flame detector

Publications (1)

Publication Number Publication Date
JPS5756723A true JPS5756723A (en) 1982-04-05

Family

ID=15069477

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13192880A Pending JPS5756723A (en) 1980-09-22 1980-09-22 Flame detector

Country Status (1)

Country Link
JP (1) JPS5756723A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55112694A (en) * 1979-02-22 1980-08-30 Monjiyu Giken Kk Fire detector

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55112694A (en) * 1979-02-22 1980-08-30 Monjiyu Giken Kk Fire detector

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