JPS57103024A - Method for measurement of object surface temperature - Google Patents

Method for measurement of object surface temperature

Info

Publication number
JPS57103024A
JPS57103024A JP55179254A JP17925480A JPS57103024A JP S57103024 A JPS57103024 A JP S57103024A JP 55179254 A JP55179254 A JP 55179254A JP 17925480 A JP17925480 A JP 17925480A JP S57103024 A JPS57103024 A JP S57103024A
Authority
JP
Japan
Prior art keywords
temp
diffuse reflection
light
coefft
energy
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
JP55179254A
Other languages
Japanese (ja)
Other versions
JPS6049853B2 (en
Inventor
Toru Inouchi
Tomio Tanaka
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP55179254A priority Critical patent/JPS6049853B2/en
Publication of JPS57103024A publication Critical patent/JPS57103024A/en
Publication of JPS6049853B2 publication Critical patent/JPS6049853B2/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
    • G01J5/52—Radiation pyrometry, e.g. infrared or optical thermometry using comparison with reference sources, e.g. disappearing-filament pyrometer

Landscapes

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

Abstract

PURPOSE:To perform temp. measurement of high accuracy by measuring the coeffts. of diffuse reflection in an on-line state, and knowing the correct coeffts. of diffuse reflection of a fluctuating temp. measuring object. CONSTITUTION:Light B is projected from a light projection part A to an object surface and the reflected light B' thereof is measured in a photodetection part C. In the part C, the ratio I2/I1 of the specular reflection light L1 and the diffuse reflection light I2 of the circumference thereof is determined. This ratio corresponds to a coefft. of diffuse reflection (p), and it is possible to know the value of the coefft. (p) from the (p-I2/I1) characteristic curve D obtained beforehand. The radiation energy from a black body furnace is changed to two kinds of those at the high and low temps., and the energy E1 detected with a radiation meter at the low temp. and the energy E2 detected at the high temp. are measured. From these E1, E2 and the coefft. (p) of diffuse reflection, the surface temp. of the object is determined.
JP55179254A 1980-12-18 1980-12-18 How to measure object surface temperature Expired JPS6049853B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55179254A JPS6049853B2 (en) 1980-12-18 1980-12-18 How to measure object surface temperature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55179254A JPS6049853B2 (en) 1980-12-18 1980-12-18 How to measure object surface temperature

Publications (2)

Publication Number Publication Date
JPS57103024A true JPS57103024A (en) 1982-06-26
JPS6049853B2 JPS6049853B2 (en) 1985-11-05

Family

ID=16062628

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55179254A Expired JPS6049853B2 (en) 1980-12-18 1980-12-18 How to measure object surface temperature

Country Status (1)

Country Link
JP (1) JPS6049853B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010066132A (en) * 2008-09-11 2010-03-25 Nippon Steel Corp Method of controlling temperature in continuous annealing furnace, and continuous annealing furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010066132A (en) * 2008-09-11 2010-03-25 Nippon Steel Corp Method of controlling temperature in continuous annealing furnace, and continuous annealing furnace

Also Published As

Publication number Publication date
JPS6049853B2 (en) 1985-11-05

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