JPS6030091U - Dimming smoke detector - Google Patents

Dimming smoke detector

Info

Publication number
JPS6030091U
JPS6030091U JP12219583U JP12219583U JPS6030091U JP S6030091 U JPS6030091 U JP S6030091U JP 12219583 U JP12219583 U JP 12219583U JP 12219583 U JP12219583 U JP 12219583U JP S6030091 U JPS6030091 U JP S6030091U
Authority
JP
Japan
Prior art keywords
light
smoke detector
receiver
light emitter
dimming smoke
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
JP12219583U
Other languages
Japanese (ja)
Other versions
JPH0441435Y2 (en
Inventor
健二 石井
Original Assignee
能美防災工業株式会社
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 能美防災工業株式会社 filed Critical 能美防災工業株式会社
Priority to JP12219583U priority Critical patent/JPS6030091U/en
Publication of JPS6030091U publication Critical patent/JPS6030091U/en
Application granted granted Critical
Publication of JPH0441435Y2 publication Critical patent/JPH0441435Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Alarm Systems (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図はこの考案の減光式煙感知器の一実施例のブロッ
ク回路図、第２図と第３図はそれぞれ第１図の感知器の
動作を説明するフローチャートと出力波形図である。 １・・・投光器、２・・・受光器、３・・・光電変換回
路、４．１９・・・増幅器、５・・・ＡＤ変換器、６・
・・コントローラ、７・・・ＣＰＵ、８・・・ＲＯＭ、
９・・・ＲＡＭ。 １０・・・パルス発生器、１１・・・Ｉｌｏ、１２・・
・キーボード、１３・・・表示器、１４・・・警報器、
１５・・・ＰＬＺＴ電気光学素子、１６・・・可変電圧
源、１７・・・レジスタ、１８・・・ＤＡ変換器。FIG. 1 is a block circuit diagram of one embodiment of the dimming type smoke detector of this invention, and FIGS. 2 and 3 are a flowchart and an output waveform diagram, respectively, for explaining the operation of the sensor of FIG. 1. DESCRIPTION OF SYMBOLS 1... Emitter, 2... Light receiver, 3... Photoelectric conversion circuit, 4.19... Amplifier, 5... AD converter, 6...
...Controller, 7...CPU, 8...ROM,
9...RAM. 10...Pulse generator, 11...Ilo, 12...
・Keyboard, 13...Display device, 14...Alarm device,
15...PLZT electro-optical element, 16...variable voltage source, 17...resistor, 18...DA converter.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 投光器と受光器とが対向配置され、投受光器間に煙が進
入したことによる受光器への光の減少を検出し警報を発
する減光式煙感知器において、投光器および受光器の一
方あるいは双方に、印加電圧の大きさによって光の透過
率が変化するＰＬＺＴ電気光学素子を設けたことを特徴
とする減光式煙感知器。In a dimming type smoke detector in which a light emitter and a light receiver are disposed facing each other, and the light emitted by the light receiver is detected and an alarm is issued when smoke enters between the light emitter and the receiver, one or both of the light emitter and the light receiver are used. A dimming type smoke detector characterized in that it is provided with a PLZT electro-optical element whose light transmittance changes depending on the magnitude of applied voltage.
JP12219583U 1983-08-08 1983-08-08 Dimming smoke detector Granted JPS6030091U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12219583U JPS6030091U (en) 1983-08-08 1983-08-08 Dimming smoke detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12219583U JPS6030091U (en) 1983-08-08 1983-08-08 Dimming smoke detector

Publications (2)

Publication Number Publication Date
JPS6030091U true JPS6030091U (en) 1985-02-28
JPH0441435Y2 JPH0441435Y2 (en) 1992-09-29

Family

ID=30279398

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12219583U Granted JPS6030091U (en) 1983-08-08 1983-08-08 Dimming smoke detector

Country Status (1)

Country Link
JP (1) JPS6030091U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5093098A (en) * 1973-12-17 1975-07-24
JPS5428600A (en) * 1977-06-21 1979-03-03 Ishii Hideki Fire alarm

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5093098A (en) * 1973-12-17 1975-07-24
JPS5428600A (en) * 1977-06-21 1979-03-03 Ishii Hideki Fire alarm

Also Published As

Publication number Publication date
JPH0441435Y2 (en) 1992-09-29

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