JPS533880A - Sensitivity checking method for scattered light type smoke detector - Google Patents

Sensitivity checking method for scattered light type smoke detector

Info

Publication number
JPS533880A
JPS533880A JP7867176A JP7867176A JPS533880A JP S533880 A JPS533880 A JP S533880A JP 7867176 A JP7867176 A JP 7867176A JP 7867176 A JP7867176 A JP 7867176A JP S533880 A JPS533880 A JP S533880A
Authority
JP
Japan
Prior art keywords
scattered light
smoke detector
light type
checking method
type 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.)
Pending
Application number
JP7867176A
Other languages
Japanese (ja)
Inventor
Kuniharu Tatezuki
Toru Kahara
Kazunari Morisue
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 JP7867176A priority Critical patent/JPS533880A/en
Publication of JPS533880A publication Critical patent/JPS533880A/en
Pending 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
    • G01N21/4785—Standardising light scatter apparatus; Standards therefor

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 carry out easy inspection by raising luminous output when checking sensitivity as compared with luminous output under normal guarding up to a level acting alarm with inflow of smoke, by means of switching resistors connected across luminous diode and electric power line.
JP7867176A 1976-07-01 1976-07-01 Sensitivity checking method for scattered light type smoke detector Pending JPS533880A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7867176A JPS533880A (en) 1976-07-01 1976-07-01 Sensitivity checking method for scattered light type smoke detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7867176A JPS533880A (en) 1976-07-01 1976-07-01 Sensitivity checking method for scattered light type smoke detector

Publications (1)

Publication Number Publication Date
JPS533880A true JPS533880A (en) 1978-01-13

Family

ID=13668320

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7867176A Pending JPS533880A (en) 1976-07-01 1976-07-01 Sensitivity checking method for scattered light type smoke detector

Country Status (1)

Country Link
JP (1) JPS533880A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5946840A (en) * 1982-09-10 1984-03-16 Oki Denki Bosai Kk Photoelectric type smoke detector with test function
JPS5946841A (en) * 1982-09-10 1984-03-16 Oki Denki Bosai Kk Photoelectric type smoke detector with test function
JPH0285994A (en) * 1989-08-01 1990-03-27 Nohmi Bosai Ltd Function inspecting device for photoelectric smoke sensor
JPH02230397A (en) * 1990-01-26 1990-09-12 Nohmi Bosai Ltd Testing device for scattered light type smoke sensor
JPH02138396U (en) * 1989-04-17 1990-11-19
JPH0373099A (en) * 1989-08-12 1991-03-28 Matsushita Electric Works Ltd Photoelectric smoke sensor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5946840A (en) * 1982-09-10 1984-03-16 Oki Denki Bosai Kk Photoelectric type smoke detector with test function
JPS5946841A (en) * 1982-09-10 1984-03-16 Oki Denki Bosai Kk Photoelectric type smoke detector with test function
JPH02138396U (en) * 1989-04-17 1990-11-19
JPH0285994A (en) * 1989-08-01 1990-03-27 Nohmi Bosai Ltd Function inspecting device for photoelectric smoke sensor
JPH0373099A (en) * 1989-08-12 1991-03-28 Matsushita Electric Works Ltd Photoelectric smoke sensor
JPH02230397A (en) * 1990-01-26 1990-09-12 Nohmi Bosai Ltd Testing device for scattered light type smoke sensor

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