JPS56130623A - Radiation thermometer - Google Patents

Radiation thermometer

Info

Publication number
JPS56130623A
JPS56130623A JP3492580A JP3492580A JPS56130623A JP S56130623 A JPS56130623 A JP S56130623A JP 3492580 A JP3492580 A JP 3492580A JP 3492580 A JP3492580 A JP 3492580A JP S56130623 A JPS56130623 A JP S56130623A
Authority
JP
Japan
Prior art keywords
lambda3
lambda1
wavelengths
lambda2
values
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
JP3492580A
Other languages
Japanese (ja)
Other versions
JPS6058411B2 (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 Corp
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 JP3492580A priority Critical patent/JPS6058411B2/en
Publication of JPS56130623A publication Critical patent/JPS56130623A/en
Publication of JPS6058411B2 publication Critical patent/JPS6058411B2/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
    • G01J5/60—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 providing a spectroscope which selects three or more spectral radiation energies, a detecting element, a logarithmic converter, amplifiers, an adder and subtractor, and so on. CONSTITUTION:Spectral radiation energies of three or more wavelengths are selected from the radiation energy flux from object 1 by spectroscope 3 and are converted to electric signals by detecting element 4. Outputs obtained by amplifying these signals with preamplifier 5 are subjected to logarithmic conversion by logarithmic converter 6 and are involved by all values except values, which include selected wavelengths themselves, out of values proportional to differences of these wavelengths by amplifiers 7-9. These outputs are added and subtracted by adder and subtractor 10 and are converted to reciprocals by reciprocal converter 11 to obtain true temperature T0 of object 1. For example, the reciprocal of ln[V(lambda1)<(lambda2-lambda3)> V(lambda3)<(lambda1-lambda2)>/V(lambda2)<(lambda1-lambda3)>]-C is operated on a basis of electric signal V(lambda1)- V(lambda3) concerning three wavelengths lambda1-lambda3.
JP3492580A 1980-03-19 1980-03-19 radiation thermometer Expired JPS6058411B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3492580A JPS6058411B2 (en) 1980-03-19 1980-03-19 radiation thermometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3492580A JPS6058411B2 (en) 1980-03-19 1980-03-19 radiation thermometer

Publications (2)

Publication Number Publication Date
JPS56130623A true JPS56130623A (en) 1981-10-13
JPS6058411B2 JPS6058411B2 (en) 1985-12-19

Family

ID=12427773

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3492580A Expired JPS6058411B2 (en) 1980-03-19 1980-03-19 radiation thermometer

Country Status (1)

Country Link
JP (1) JPS6058411B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58132635A (en) * 1982-02-03 1983-08-08 Chino Works Ltd Correcting circuit for radiation rate of radiation thermometer
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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58132635A (en) * 1982-02-03 1983-08-08 Chino Works Ltd Correcting circuit for radiation rate of radiation thermometer
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
JPS6058411B2 (en) 1985-12-19

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