JPS56130622A - Radiation thermometer - Google Patents

Radiation thermometer

Info

Publication number
JPS56130622A
JPS56130622A JP3492480A JP3492480A JPS56130622A JP S56130622 A JPS56130622 A JP S56130622A JP 3492480 A JP3492480 A JP 3492480A JP 3492480 A JP3492480 A JP 3492480A JP S56130622 A JPS56130622 A JP S56130622A
Authority
JP
Japan
Prior art keywords
lambda3
lambda1
electric signals
values
lambda2
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
JP3492480A
Other languages
Japanese (ja)
Other versions
JPS6111369B2 (en
Inventor
Toshihiko Ide
Toshifusa Suzuki
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.)
Chino Works Ltd
Original Assignee
Chino Works 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 Chino Works Ltd filed Critical Chino Works Ltd
Priority to JP3492480A priority Critical patent/JPS56130622A/en
Publication of JPS56130622A publication Critical patent/JPS56130622A/en
Publication of JPS6111369B2 publication Critical patent/JPS6111369B2/ja
Granted 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
    • G01J5/60—Radiation pyrometry, e.g. infrared or optical thermometry using determination of colour temperature

Landscapes

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

Abstract

PURPOSE:To eliminate the influence of emissivity to measure the true surface temperature even for a general object, by selecting three or more spectral radiation energies from the radiation energy flux and by performing a specific operation after converting them to electric signals. CONSTITUTION:Spectral radiation energies of three or more wave-lengths are selected from the radiation energy flux from object 1 by spectroscope 3 and are converted to electric signals by detecting element 4. These electric signals are involved by all values except values, which include selected wavelengths, themselves, out of values proportional to differences of these wavelengths, and ratios which have obtained signals as numerators and denominators alrernately are obtained. For example, ln [V(lambda1)<(lambda2-lambda3)>V(lambda3)<(lambda1-lambda2)>/V(lambda2) <(lambda1-lambda3)>]-C is operated on a basis of logarithmic conversion values of electric signals V(lambda1)-V(lambda3) concerning three wavelengths of lambda1-lambda3 by amplifiers 7-9 and adder and subtractor 10, and the reciprocal of this signals is operated by reciprocal converter 11, thereby obtaining true temperature T0 of object 1.
JP3492480A 1980-03-19 1980-03-19 Radiation thermometer Granted JPS56130622A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3492480A JPS56130622A (en) 1980-03-19 1980-03-19 Radiation thermometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3492480A JPS56130622A (en) 1980-03-19 1980-03-19 Radiation thermometer

Publications (2)

Publication Number Publication Date
JPS56130622A true JPS56130622A (en) 1981-10-13
JPS6111369B2 JPS6111369B2 (en) 1986-04-02

Family

ID=12427749

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3492480A Granted JPS56130622A (en) 1980-03-19 1980-03-19 Radiation thermometer

Country Status (1)

Country Link
JP (1) JPS56130622A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4979133A (en) * 1988-02-08 1990-12-18 Minolta Camera Kabushiki Kaisha Pyrometer
US5231595A (en) * 1983-06-06 1993-07-27 Minolta Camera Kabushiki Kaisha Pyrometer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5231595A (en) * 1983-06-06 1993-07-27 Minolta Camera Kabushiki Kaisha Pyrometer
US4979133A (en) * 1988-02-08 1990-12-18 Minolta Camera Kabushiki Kaisha Pyrometer

Also Published As

Publication number Publication date
JPS6111369B2 (en) 1986-04-02

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