JPS57101727A - Calibrating method for surface temperature of steel plate - Google Patents

Calibrating method for surface temperature of steel plate

Info

Publication number
JPS57101727A
JPS57101727A JP55178558A JP17855880A JPS57101727A JP S57101727 A JPS57101727 A JP S57101727A JP 55178558 A JP55178558 A JP 55178558A JP 17855880 A JP17855880 A JP 17855880A JP S57101727 A JPS57101727 A JP S57101727A
Authority
JP
Japan
Prior art keywords
steel plate
temperature
energy
radiometer
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
JP55178558A
Other languages
Japanese (ja)
Other versions
JPS6049851B2 (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 JP55178558A priority Critical patent/JPS6049851B2/en
Publication of JPS57101727A publication Critical patent/JPS57101727A/en
Publication of JPS6049851B2 publication Critical patent/JPS6049851B2/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 make it possible to accurately calibrate a value of temperature obtained by a thermocouple, by seeking a radiation energy from a steel plate at the time when a difference, which is obtained by subtracting an amount of direct incidence from a sum of an amount of direct incident to a radiometer and an amount of incidence after reflection on a mirror surface, takes the maximum value, and then, by obtaining a real steel plate surface temperature by using a prescribed equation. CONSTITUTION:A radiometer 12 and a reflector 14 are arranged on a heated steel plate 10, which is an object of temperature measurement, in such a manner that energy radiated from the steel plate enters the radiometer directly and also indirectly after reflecting upon the reflector and surface of the object. By measuring E1, which is the radiation energy, and E2, which is a sum of the E1 and a radiation energy entering after the reflections, and also by changing the rate of radiation from the steel plate surface while keeping the steel plate temperature constant, the radiating energy E1 at the time when a difference DELTAE=E2-E1 is the maximum is sought, and by using a relative equation EbT=2/r.E1* (r in the equation signifies permeability of filters 18 and 20) between the value E1* and a blackbody radiating energy, a surface temperature T of the steel plate is sought. And, a thermocouple 24 is installed in the neighborhood of the steel plate temperature measuring section to obtain an indicative temperature T, and a temperature Ta is calibrated by the temperature T.
JP55178558A 1980-12-17 1980-12-17 Calibration method for steel plate surface temperature Expired JPS6049851B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55178558A JPS6049851B2 (en) 1980-12-17 1980-12-17 Calibration method for steel plate surface temperature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55178558A JPS6049851B2 (en) 1980-12-17 1980-12-17 Calibration method for steel plate surface temperature

Publications (2)

Publication Number Publication Date
JPS57101727A true JPS57101727A (en) 1982-06-24
JPS6049851B2 JPS6049851B2 (en) 1985-11-05

Family

ID=16050580

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55178558A Expired JPS6049851B2 (en) 1980-12-17 1980-12-17 Calibration method for steel plate surface temperature

Country Status (1)

Country Link
JP (1) JPS6049851B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6029623A (en) * 1983-07-27 1985-02-15 Yokogawa Hokushin Electric Corp Radiation thermometer
US6742925B2 (en) * 2001-11-19 2004-06-01 Cole-Parmer Instrument Company Method and apparatus for verifying accuracy of an infrared thermometer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6029623A (en) * 1983-07-27 1985-02-15 Yokogawa Hokushin Electric Corp Radiation thermometer
US6742925B2 (en) * 2001-11-19 2004-06-01 Cole-Parmer Instrument Company Method and apparatus for verifying accuracy of an infrared thermometer

Also Published As

Publication number Publication date
JPS6049851B2 (en) 1985-11-05

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