JPS57161622A - Flame detector - Google Patents

Flame detector

Info

Publication number
JPS57161622A
JPS57161622A JP4756581A JP4756581A JPS57161622A JP S57161622 A JPS57161622 A JP S57161622A JP 4756581 A JP4756581 A JP 4756581A JP 4756581 A JP4756581 A JP 4756581A JP S57161622 A JPS57161622 A JP S57161622A
Authority
JP
Japan
Prior art keywords
optical fiber
rays
open
angle
fiber
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
JP4756581A
Other languages
Japanese (ja)
Inventor
Shunji Ichida
Yasutaka Nakanishi
Nobuhiro Iida
Yasuo Iwagami
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.)
Azbil Corp
Original Assignee
Azbil Corp
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 Azbil Corp filed Critical Azbil Corp
Priority to JP4756581A priority Critical patent/JPS57161622A/en
Publication of JPS57161622A publication Critical patent/JPS57161622A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Fire-Detection Mechanisms (AREA)

Abstract

PURPOSE:To enable detecting of flames, being approximately 90 deg. different in direction, by a single device, by installing an optical fiber whose one end is open in the direction of a side and an end and to a center angle and which leads rays to a flame. CONSTITUTION:A flame detector body 1 is cylindrical and an optical fiber 2 pierces through the body 1. One end of the fiber 2 is bent at an angle of 45 deg. to the long axis of the body 1, and the fiber 2 has an opening 1a being open to one end of the body 1. The opening 1a enables entering of rays covering a range of an angle theta (about 60-80 deg.) to the center line thereof, one end of the angle theta corresponding to a direction of a side, and the other end corresponds to a direction of an end. The other end of the optical fiber 2 is open facing and opposite to a photoelectric element 3 which converts rays, entering through the optical fiber 2, into an electric signal and outputs it, and is attached to a substrate 4. A case consists of an opaque material and intercepts other light around the photoelectric element 3.
JP4756581A 1981-03-31 1981-03-31 Flame detector Pending JPS57161622A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4756581A JPS57161622A (en) 1981-03-31 1981-03-31 Flame detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4756581A JPS57161622A (en) 1981-03-31 1981-03-31 Flame detector

Publications (1)

Publication Number Publication Date
JPS57161622A true JPS57161622A (en) 1982-10-05

Family

ID=12778738

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4756581A Pending JPS57161622A (en) 1981-03-31 1981-03-31 Flame detector

Country Status (1)

Country Link
JP (1) JPS57161622A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60104224A (en) * 1983-11-11 1985-06-08 Japanese National Railways<Jnr> Device for detecting combustion condition of reciprocating internal-combustion engine
JPS60104225A (en) * 1983-11-11 1985-06-08 Japanese National Railways<Jnr> Device for detecting combustion condition of reciprocating internal-combustion engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5447133A (en) * 1977-09-20 1979-04-13 Toshiba Corp Flame detector for combustion chamber of boiler

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5447133A (en) * 1977-09-20 1979-04-13 Toshiba Corp Flame detector for combustion chamber of boiler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60104224A (en) * 1983-11-11 1985-06-08 Japanese National Railways<Jnr> Device for detecting combustion condition of reciprocating internal-combustion engine
JPS60104225A (en) * 1983-11-11 1985-06-08 Japanese National Railways<Jnr> Device for detecting combustion condition of reciprocating internal-combustion engine

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