JPS55106326A - Pyroelectric infrared-ray detector - Google Patents

Pyroelectric infrared-ray detector

Info

Publication number
JPS55106326A
JPS55106326A JP1410279A JP1410279A JPS55106326A JP S55106326 A JPS55106326 A JP S55106326A JP 1410279 A JP1410279 A JP 1410279A JP 1410279 A JP1410279 A JP 1410279A JP S55106326 A JPS55106326 A JP S55106326A
Authority
JP
Japan
Prior art keywords
output
heat source
integrating
capacitor
switch
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
JP1410279A
Other languages
Japanese (ja)
Inventor
Hiroshi Obara
Seiichi Suzuki
Aisaku Nagai
Yasushi Endo
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.)
Kureha Corp
Original Assignee
Kureha 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 Kureha Corp filed Critical Kureha Corp
Priority to JP1410279A priority Critical patent/JPS55106326A/en
Publication of JPS55106326A publication Critical patent/JPS55106326A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
    • G01J5/34—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using capacitors, e.g. pyroelectric capacitors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Radiation Pyrometers (AREA)

Abstract

PURPOSE:To secure the assured decision for the scale of the heat source by detecting the output of the pyroelectric element after integrating, thus eliminating the malfunction. CONSTITUTION:Integrating capacitor 3 is installed to operational amplifier 2 connected to pyroelectric element 1, and switch 4 is provided in parallel to capacitor 3. Then switch 4 is turned on and off in the fixed cycle via electronic circuit 5, and the electric charge which is charged to capacitor 3 by the offset current of amplifier 2 is discharged. Thus the charge caused by the temperature change of element 1 is extracted to output end 7 in the form of the amount of integrating. As a result, a large amount of the output is caused to the large heat source although the output and the variation ratio may be small to the heat source such as the catch- fire of the match or the like which has a small amount of radiation for the infrared rays.
JP1410279A 1979-02-09 1979-02-09 Pyroelectric infrared-ray detector Pending JPS55106326A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1410279A JPS55106326A (en) 1979-02-09 1979-02-09 Pyroelectric infrared-ray detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1410279A JPS55106326A (en) 1979-02-09 1979-02-09 Pyroelectric infrared-ray detector

Publications (1)

Publication Number Publication Date
JPS55106326A true JPS55106326A (en) 1980-08-15

Family

ID=11851748

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1410279A Pending JPS55106326A (en) 1979-02-09 1979-02-09 Pyroelectric infrared-ray detector

Country Status (1)

Country Link
JP (1) JPS55106326A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0669604A1 (en) * 1994-02-24 1995-08-30 Regent Lighting Corporation Infrared detection switching circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0669604A1 (en) * 1994-02-24 1995-08-30 Regent Lighting Corporation Infrared detection switching circuit

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