JPS5911392U - optical smoke detector - Google Patents

optical smoke detector

Info

Publication number
JPS5911392U
JPS5911392U JP7270683U JP7270683U JPS5911392U JP S5911392 U JPS5911392 U JP S5911392U JP 7270683 U JP7270683 U JP 7270683U JP 7270683 U JP7270683 U JP 7270683U JP S5911392 U JPS5911392 U JP S5911392U
Authority
JP
Japan
Prior art keywords
light
emitting element
light emitting
circuit
signal
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.)
Granted
Application number
JP7270683U
Other languages
Japanese (ja)
Other versions
JPS5926475Y2 (en
Inventor
田頭　浩
Original Assignee
ニツタン株式会社
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 ニツタン株式会社 filed Critical ニツタン株式会社
Priority to JP1983072706U priority Critical patent/JPS5926475Y2/en
Publication of JPS5911392U publication Critical patent/JPS5911392U/en
Application granted granted Critical
Publication of JPS5926475Y2 publication Critical patent/JPS5926475Y2/en
Expired legal-status Critical Current

Links

Landscapes

  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、この考案の光式煙感知器のブロック線図、第
２図は第１図の感知器の動作を説明するために用いるタ
イミングチャートである。 １・・・・・・非安定マルチバイブレター回路、２．３
・・・・・・遅延回路、４．５・・・・・◆ワンショッ
トマルチバイブレター回路、６・・・・・・発光素子駆
動回路、７・・・・・・発光素子、８・・・・・・受光
素子、９・・・・・・増幅回路、１０．１１・・・・・
・アンド回路、１２．１３・・・・・・フリップフロッ
プ回路、１４．１９・・・・・・アンド回路、１５・・
・・・・オア回路、１６・・・・・・警報駆動回路、１
７・・・・・・警報部、１８・・・・・・リセットパル
ス発生回路。FIG. 1 is a block diagram of the optical smoke detector of this invention, and FIG. 2 is a timing chart used to explain the operation of the sensor of FIG. 1. 1...Unstable multivibrator circuit, 2.3
...Delay circuit, 4.5...◆One-shot multivibrator circuit, 6...Light emitting element drive circuit, 7...Light emitting element, 8... ...Photodetector, 9...Amplification circuit, 10.11...
・AND circuit, 12.13...Flip-flop circuit, 14.19...AND circuit, 15...
...OR circuit, 16...Alarm drive circuit, 1
7... Alarm unit, 18... Reset pulse generation circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 煙が侵入する空間に光線を照射する発光素子と、該発光
素子を所定周期内に継続して２回パルス発米させる発光
素子駆動回路と、上記発光素子の光線の透過光、または
、散乱光を受光する受光素子と、該受光素子からの信号
を上記発光素子駆動回路からの信号と比較して検出する
受光検出回路と、該受光検出回路の継続した２つの出力
信号に基づき、警報信号を発生する回路とを具備するこ
とを特徴とする光式煙感知器。A light emitting element that irradiates a light beam into a space where smoke enters, a light emitting element drive circuit that pulses the light emitting element twice in a predetermined period, and transmitted light or scattered light of the light beam of the light emitting element. a light receiving element that receives light, a light receiving detection circuit that detects the signal by comparing the signal from the light receiving element with a signal from the light emitting element drive circuit, and an alarm signal based on two successive output signals of the light receiving detecting circuit. An optical smoke detector characterized by comprising: a generating circuit.
JP1983072706U 1983-05-16 1983-05-16 optical smoke detector Expired JPS5926475Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1983072706U JPS5926475Y2 (en) 1983-05-16 1983-05-16 optical smoke detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1983072706U JPS5926475Y2 (en) 1983-05-16 1983-05-16 optical smoke detector

Publications (2)

Publication Number Publication Date
JPS5911392U true JPS5911392U (en) 1984-01-24
JPS5926475Y2 JPS5926475Y2 (en) 1984-08-01

Family

ID=30202841

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1983072706U Expired JPS5926475Y2 (en) 1983-05-16 1983-05-16 optical smoke detector

Country Status (1)

Country Link
JP (1) JPS5926475Y2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS586994A (en) * 1981-06-30 1983-01-14 コミンコ・リミテツド Electrode purifying method and device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS586994A (en) * 1981-06-30 1983-01-14 コミンコ・リミテツド Electrode purifying method and device

Also Published As

Publication number Publication date
JPS5926475Y2 (en) 1984-08-01

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