JPS5214400A - Photoelectric type smoke sensor with self-diagnosing circuit capable of monitoring dust cleaner mesh choking - Google Patents

Photoelectric type smoke sensor with self-diagnosing circuit capable of monitoring dust cleaner mesh choking

Info

Publication number
JPS5214400A
JPS5214400A JP9064875A JP9064875A JPS5214400A JP S5214400 A JPS5214400 A JP S5214400A JP 9064875 A JP9064875 A JP 9064875A JP 9064875 A JP9064875 A JP 9064875A JP S5214400 A JPS5214400 A JP S5214400A
Authority
JP
Japan
Prior art keywords
mesh
choking
dust cleaner
self
circuit capable
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
JP9064875A
Other languages
Japanese (ja)
Other versions
JPS5618995B2 (en
Inventor
Masao Tanaka
Hiroshi Ooyama
Mitsuyoshi Akatsu
Koji Ono
Yutaka Hashimoto
Isaburo Takeuchi
Masayuki Tokiwa
Takashi Moro
Kenji Ishikawa
Mitsunori Nakano
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.)
RIKEN KOKI KK
Oki Electric Industry Co Ltd
Takenaka Komuten Co Ltd
Original Assignee
RIKEN KOKI KK
Oki Electric Industry Co Ltd
Takenaka Komuten Co 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 RIKEN KOKI KK, Oki Electric Industry Co Ltd, Takenaka Komuten Co Ltd filed Critical RIKEN KOKI KK
Priority to JP9064875A priority Critical patent/JPS5214400A/en
Publication of JPS5214400A publication Critical patent/JPS5214400A/en
Publication of JPS5618995B2 publication Critical patent/JPS5618995B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To obtain a smock sensor capable of stably reliable sensing function by making possible to remote-monitoring the choking of dust cleaner mesh by arranging the irradiated light from luminous diode to be directly transfered to the light receiving diode through the dust cleaner mesh mesh and the reflecting mirror.
COPYRIGHT: (C)1977,JPO&Japio
JP9064875A 1975-07-24 1975-07-24 Photoelectric type smoke sensor with self-diagnosing circuit capable of monitoring dust cleaner mesh choking Granted JPS5214400A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9064875A JPS5214400A (en) 1975-07-24 1975-07-24 Photoelectric type smoke sensor with self-diagnosing circuit capable of monitoring dust cleaner mesh choking

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9064875A JPS5214400A (en) 1975-07-24 1975-07-24 Photoelectric type smoke sensor with self-diagnosing circuit capable of monitoring dust cleaner mesh choking

Publications (2)

Publication Number Publication Date
JPS5214400A true JPS5214400A (en) 1977-02-03
JPS5618995B2 JPS5618995B2 (en) 1981-05-02

Family

ID=14004319

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9064875A Granted JPS5214400A (en) 1975-07-24 1975-07-24 Photoelectric type smoke sensor with self-diagnosing circuit capable of monitoring dust cleaner mesh choking

Country Status (1)

Country Link
JP (1) JPS5214400A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63292397A (en) * 1987-05-26 1988-11-29 Matsushita Electric Works Ltd Fire alarm device having analog type sensor
JPH02181297A (en) * 1989-01-06 1990-07-16 Oki Denki Bosai Kk Smoke sensor with test function
JPH03245296A (en) * 1990-02-23 1991-10-31 Oki Denki Bosai Kk Testing method for smoke sensor and smoke sensor
JP2008097518A (en) * 2006-10-16 2008-04-24 Nittan Co Ltd Particle counter type smoke detector
US11160301B2 (en) 2014-09-30 2021-11-02 Philip Morris Products S.A. Method for the production of homogenized tobacco material

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63292397A (en) * 1987-05-26 1988-11-29 Matsushita Electric Works Ltd Fire alarm device having analog type sensor
JPH02181297A (en) * 1989-01-06 1990-07-16 Oki Denki Bosai Kk Smoke sensor with test function
JPH03245296A (en) * 1990-02-23 1991-10-31 Oki Denki Bosai Kk Testing method for smoke sensor and smoke sensor
JP2008097518A (en) * 2006-10-16 2008-04-24 Nittan Co Ltd Particle counter type smoke detector
US11160301B2 (en) 2014-09-30 2021-11-02 Philip Morris Products S.A. Method for the production of homogenized tobacco material

Also Published As

Publication number Publication date
JPS5618995B2 (en) 1981-05-02

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