JPS6298224A - 炎検知器 - Google Patents

炎検知器

Info

Publication number
JPS6298224A
JPS6298224A JP23755085A JP23755085A JPS6298224A JP S6298224 A JPS6298224 A JP S6298224A JP 23755085 A JP23755085 A JP 23755085A JP 23755085 A JP23755085 A JP 23755085A JP S6298224 A JPS6298224 A JP S6298224A
Authority
JP
Japan
Prior art keywords
output
flame
receiving element
light receiving
circuit
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
JP23755085A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0466299B2 (enrdf_load_stackoverflow
Inventor
Yuichi Kawakami
雄一 川上
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.)
Minolta Co Ltd
Original Assignee
Minolta 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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP23755085A priority Critical patent/JPS6298224A/ja
Priority to US06/856,668 priority patent/US4742236A/en
Publication of JPS6298224A publication Critical patent/JPS6298224A/ja
Publication of JPH0466299B2 publication Critical patent/JPH0466299B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Fire-Detection Mechanisms (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
JP23755085A 1985-04-27 1985-10-25 炎検知器 Granted JPS6298224A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP23755085A JPS6298224A (ja) 1985-10-25 1985-10-25 炎検知器
US06/856,668 US4742236A (en) 1985-04-27 1986-04-25 Flame detector for detecting phase difference in two different wavelengths of light

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23755085A JPS6298224A (ja) 1985-10-25 1985-10-25 炎検知器

Publications (2)

Publication Number Publication Date
JPS6298224A true JPS6298224A (ja) 1987-05-07
JPH0466299B2 JPH0466299B2 (enrdf_load_stackoverflow) 1992-10-22

Family

ID=17016991

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23755085A Granted JPS6298224A (ja) 1985-04-27 1985-10-25 炎検知器

Country Status (1)

Country Link
JP (1) JPS6298224A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH0466299B2 (enrdf_load_stackoverflow) 1992-10-22

Similar Documents

Publication Publication Date Title
US4691196A (en) Dual spectrum frequency responding fire sensor
US4249168A (en) Flame detector
US3940753A (en) Detection of presence or absence of flames
US4742236A (en) Flame detector for detecting phase difference in two different wavelengths of light
US4471221A (en) Infra-red flame detector
JP3313663B2 (ja) 炎感知器
US5414263A (en) Infrared detection switching circuit
US4415806A (en) Radiation detector for a flame alarm
US20030102434A1 (en) Flame sensor
JPS6298224A (ja) 炎検知器
JPS6132195A (ja) 火災感知装置
JPS6298223A (ja) 炎検知器
JP3205889B2 (ja) 炎検出装置
JP2552148B2 (ja) 火災検知方法及び装置
JPS61250524A (ja) 炎検知器
JP3333646B2 (ja) 赤外線式人体検知装置
GB2097120A (en) Flame detector
JPS6138430A (ja) 火災感知器
JPH03238390A (ja) 人体検出装置
JPS5979123A (ja) 炎感知器
JPS6038759B2 (ja) 火災検出装置
JPH04350796A (ja) 炎検出装置
JPH01216292A (ja) 熱線式人体検知装置
JPH01109226A (ja) 炎検知器
JPS6176922A (ja) 炎検出装置