JPS5214399A - Dust cleaner mesh choking monitor of smoke sensor - Google Patents

Dust cleaner mesh choking monitor of smoke sensor

Info

Publication number
JPS5214399A
JPS5214399A JP50090647A JP9064775A JPS5214399A JP S5214399 A JPS5214399 A JP S5214399A JP 50090647 A JP50090647 A JP 50090647A JP 9064775 A JP9064775 A JP 9064775A JP S5214399 A JPS5214399 A JP S5214399A
Authority
JP
Japan
Prior art keywords
choking
mesh
monitor
smoke sensor
dust cleaner
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
JP50090647A
Other languages
Japanese (ja)
Other versions
JPS5618994B2 (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 JP50090647A priority Critical patent/JPS5214399A/en
Publication of JPS5214399A publication Critical patent/JPS5214399A/en
Publication of JPS5618994B2 publication Critical patent/JPS5618994B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)

Abstract

PURPOSE: To obtain a convenient choking monitor which can secure a stably reliable sensing function by setting a luminous and a receiving diodes facing each other with a dust cleaner mesh for smoke sensor between.
COPYRIGHT: (C)1977,JPO&Japio
JP50090647A 1975-07-24 1975-07-24 Dust cleaner mesh choking monitor of smoke sensor Granted JPS5214399A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50090647A JPS5214399A (en) 1975-07-24 1975-07-24 Dust cleaner mesh choking monitor of smoke sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50090647A JPS5214399A (en) 1975-07-24 1975-07-24 Dust cleaner mesh choking monitor of smoke sensor

Publications (2)

Publication Number Publication Date
JPS5214399A true JPS5214399A (en) 1977-02-03
JPS5618994B2 JPS5618994B2 (en) 1981-05-02

Family

ID=14004290

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50090647A Granted JPS5214399A (en) 1975-07-24 1975-07-24 Dust cleaner mesh choking monitor of smoke sensor

Country Status (1)

Country Link
JP (1) JPS5214399A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4242639A1 (en) * 2022-03-07 2023-09-13 Carrier Corporation Systems and methods for blockage detection in gas detectors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4242639A1 (en) * 2022-03-07 2023-09-13 Carrier Corporation Systems and methods for blockage detection in gas detectors

Also Published As

Publication number Publication date
JPS5618994B2 (en) 1981-05-02

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