GB1263243A - Flame monitor - Google Patents

Flame monitor

Info

Publication number
GB1263243A
GB1263243A GB789468A GB789468A GB1263243A GB 1263243 A GB1263243 A GB 1263243A GB 789468 A GB789468 A GB 789468A GB 789468 A GB789468 A GB 789468A GB 1263243 A GB1263243 A GB 1263243A
Authority
GB
United Kingdom
Prior art keywords
photo
flame
cell
alarm
radiation
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.)
Expired
Application number
GB789468A
Inventor
Sidney Smith
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB789468A priority Critical patent/GB1263243A/en
Publication of GB1263243A publication Critical patent/GB1263243A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/08—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements
    • F23N5/082—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements using electronic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • 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

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

1,263,243. Monitoring flames photoelectrically. NATIONAL RESEARCH DEVELOPMENT CORP. May 19, 1969 [Feb.17, 1968], No.7894/68. Heading G1A. A flame monitor comprises a photo-cell shielded by a filter designed to pass only a limited wavelength range so that flame radiation can be distinguished from other radiation. The filter is preferably cyan and the photo-cell controls the operation of a trigger circuit which operates an alarm or shut-down system. As shown, when photo-cell V1 is illuminated the voltage on trigger tube V2 rises until it conducts and operates relay contacts B1 to light neon indicator N3. If the flame goes out, tube V2 will extinguish when the supply voltage falls to zero and relay contact will changeover causing the alarm neon N4 to be lit and the external circuit connected at point A to be energized.
GB789468A 1968-02-17 1968-02-17 Flame monitor Expired GB1263243A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB789468A GB1263243A (en) 1968-02-17 1968-02-17 Flame monitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB789468A GB1263243A (en) 1968-02-17 1968-02-17 Flame monitor

Publications (1)

Publication Number Publication Date
GB1263243A true GB1263243A (en) 1972-02-09

Family

ID=9841859

Family Applications (1)

Application Number Title Priority Date Filing Date
GB789468A Expired GB1263243A (en) 1968-02-17 1968-02-17 Flame monitor

Country Status (1)

Country Link
GB (1) GB1263243A (en)

Similar Documents

Publication Publication Date Title
GB1267234A (en)
GB1199906A (en) Improvements in or relating to Flame-Responsive Apparatus
GB1455034A (en) Flame monitoring apparatus
US3313946A (en) Smoke, flame, critical temperature and rate of temperature rise detector
US3054928A (en) Photoelectrically controlled switching device
GB1263243A (en) Flame monitor
EP0396386A3 (en) Fire alarm system
GB806881A (en) Improvements in or relating to annunciator or alarm systems
JPS6423981A (en) Leaked oil detector
GB1379921A (en) Mesuring circuits
GB1282137A (en) Fluid pressure indicating system
GB1417984A (en) Flame detection circuits
SE8306249L (en) Plasma Burner Monitoring Device
JPS5614173A (en) Photoelectric switch
JPS5783854A (en) Protecting circuit for runaway of microcomputer system
SU736149A1 (en) Smoke sensor
GB1091613A (en) Electronic flame radiation responsive safety apparatus for burner installations
GB1308829A (en) Flame monitoring equipment
SE328807B (en)
GB910005A (en) Improvements in and relating to safety devices employing photo-conductive instruments
GB1215950A (en) Alarm device for hydraulic brakes
JPS5243484A (en) System for inspecting sealing compound of sealing covers
JPS5377590A (en) Banknote examining apparatus
GB1161004A (en) Improvements relating to Monitoring Circuits
JPS5471683A (en) Smoke sensors