JPS5535286A - Infrared-ray detector - Google Patents

Infrared-ray detector

Info

Publication number
JPS5535286A
JPS5535286A JP10942478A JP10942478A JPS5535286A JP S5535286 A JPS5535286 A JP S5535286A JP 10942478 A JP10942478 A JP 10942478A JP 10942478 A JP10942478 A JP 10942478A JP S5535286 A JPS5535286 A JP S5535286A
Authority
JP
Japan
Prior art keywords
voltage
charge
modulated
infrared
amount
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
JP10942478A
Other languages
Japanese (ja)
Other versions
JPS6035014B2 (en
Inventor
Shigeru Kusuki
Tomotaka Nobue
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 Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP53109424A priority Critical patent/JPS6035014B2/en
Publication of JPS5535286A publication Critical patent/JPS5535286A/en
Publication of JPS6035014B2 publication Critical patent/JPS6035014B2/en
Expired 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)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Radiation Pyrometers (AREA)

Abstract

PURPOSE:To perform photo modulation of the quantity of detected infrared rays by a simple circuit by eliminating the need for a chopper by applying an infrared- ray detecting element with a modulated voltage. CONSTITUTION:Modulated-signal generator 3 generates a modulated voltage by a fixed frequency signal to charge an infrared-ray detecting element via capacitor 2 in each constant period. This charge is equivalent to Fig. A, so that it will be discharged through resistance Rs and the input impedance of FET 4. Since the amount of charge Q and capacity Cs of element 1 have relation of Vs=Q/Cs with across voltage Vs, a voltage in proportion to this discharged charge is developed. When infrared rays strike, the amount of generated charge DELTAQ can be obtained corresponding to the incident light energy. Therefore, voltage variation DELTAV of Vs(=Vs+DELTAV)=(Q+DELTAQ)/Cs can be obtained. The amount of incident infrared rays can be measured by knowing this voltage variation DELTAV. The modulated electric signal is voltage divided by the resistance or capacitor and then applied, so that the voltage across element 1 can be developed in proportion to the charge of element.
JP53109424A 1978-09-05 1978-09-05 infrared detection device Expired JPS6035014B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53109424A JPS6035014B2 (en) 1978-09-05 1978-09-05 infrared detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53109424A JPS6035014B2 (en) 1978-09-05 1978-09-05 infrared detection device

Publications (2)

Publication Number Publication Date
JPS5535286A true JPS5535286A (en) 1980-03-12
JPS6035014B2 JPS6035014B2 (en) 1985-08-12

Family

ID=14509884

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53109424A Expired JPS6035014B2 (en) 1978-09-05 1978-09-05 infrared detection device

Country Status (1)

Country Link
JP (1) JPS6035014B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59209514A (en) * 1983-05-12 1984-11-28 株式会社石田衡器製作所 Method and device for controlling transfer of packing film
JPS63190001U (en) * 1987-05-25 1988-12-07

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59209514A (en) * 1983-05-12 1984-11-28 株式会社石田衡器製作所 Method and device for controlling transfer of packing film
JPS63190001U (en) * 1987-05-25 1988-12-07

Also Published As

Publication number Publication date
JPS6035014B2 (en) 1985-08-12

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