JPS5719628A - Measuring device for infrared radiation - Google Patents

Measuring device for infrared radiation

Info

Publication number
JPS5719628A
JPS5719628A JP9390580A JP9390580A JPS5719628A JP S5719628 A JPS5719628 A JP S5719628A JP 9390580 A JP9390580 A JP 9390580A JP 9390580 A JP9390580 A JP 9390580A JP S5719628 A JPS5719628 A JP S5719628A
Authority
JP
Japan
Prior art keywords
output
chopper
detector
differential amplifier
switching device
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
JP9390580A
Other languages
Japanese (ja)
Inventor
Yoshinori Sato
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP9390580A priority Critical patent/JPS5719628A/en
Publication of JPS5719628A publication Critical patent/JPS5719628A/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
    • G01J5/02—Constructional details
    • G01J5/08—Optical arrangements
    • G01J5/0803—Arrangements for time-dependent attenuation of radiation signals
    • G01J5/0805—Means for chopping radiation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Radiation Pyrometers (AREA)

Abstract

PURPOSE:To automatically remove the radiant light reflected from a chopper, by a method wherein detecting signals for the radiant light from the chopper are stored to be subtracted from an output of a detector. CONSTITUTION:Incident light (a) from an object to be measured reaches a detector 3 through a chopper 2, and an output is applied to a differential amplifier 21. When the chopper 2 shuts off the incident light, a signal from a detector 22 opens a switching device 24 after passing through an amplifier 23, and the output of the differential amplifier 21 is applied as the other input of the differential amplifier 21 through an integrator 25. Meanwhile, the branch output of the detector 22 is applied to a switching device 27 through an inverter 26. The output of the differential amplifier 21 is inputted to an amplifier 28, a switching device 30, and a holding circuit 31. The device 30 opens through a signal from a detector 32 at a time when a light path is released. The output of the circuit 31 is inputted to an indicator 35 and a recorder 36. This permits the automatic elimination of the radiant light reflected from the chopper 2.
JP9390580A 1980-07-11 1980-07-11 Measuring device for infrared radiation Pending JPS5719628A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9390580A JPS5719628A (en) 1980-07-11 1980-07-11 Measuring device for infrared radiation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9390580A JPS5719628A (en) 1980-07-11 1980-07-11 Measuring device for infrared radiation

Publications (1)

Publication Number Publication Date
JPS5719628A true JPS5719628A (en) 1982-02-01

Family

ID=14095491

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9390580A Pending JPS5719628A (en) 1980-07-11 1980-07-11 Measuring device for infrared radiation

Country Status (1)

Country Link
JP (1) JPS5719628A (en)

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