JPS55144514A - Two-color radiation temperature measuring method - Google Patents

Two-color radiation temperature measuring method

Info

Publication number
JPS55144514A
JPS55144514A JP5323279A JP5323279A JPS55144514A JP S55144514 A JPS55144514 A JP S55144514A JP 5323279 A JP5323279 A JP 5323279A JP 5323279 A JP5323279 A JP 5323279A JP S55144514 A JPS55144514 A JP S55144514A
Authority
JP
Japan
Prior art keywords
difference
temperature
value
infrared rays
measured object
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
JP5323279A
Other languages
Japanese (ja)
Inventor
Hiroshi Matsumura
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.)
Jeol Ltd
Original Assignee
Jeol Ltd
Nihon Denshi KK
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 Jeol Ltd, Nihon Denshi KK filed Critical Jeol Ltd
Priority to JP5323279A priority Critical patent/JPS55144514A/en
Publication of JPS55144514A publication Critical patent/JPS55144514A/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
    • G01J5/60—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 always accurately measure a temperature, by detecting infrared rays emitted from a measured object, separately in two different wavelength regions and by making it impossible to obtain a measurement result when a detected error is large. CONSTITUTION:Infrared rays of lambda1, lambda2 in wavelength, which are emitted from a measured object 3, are detected by sensors 1, 2. Detection signals P1, P2 divided by a value mu (0<=mu<=1) in calculation circuits 13, 14 to determine ratios P1/mu, P2/mu. The ratios are changed into temperature signals T1, T2 by conversion circuits 15, 16. The outputs of the conversion circuits are supplied to a difference detection circuit 17 which determines the difference DELTAT. This difference is applied to a discrimination circuit 18. The value mu is swept from 1 to 0 by a sweep circuit 12. As a result, a corresponding temperature signal value is indicated on a display unit 19 when the difference DELTAT is smaller than an allowable temperature difference DELTATs and negligible.
JP5323279A 1979-04-28 1979-04-28 Two-color radiation temperature measuring method Pending JPS55144514A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5323279A JPS55144514A (en) 1979-04-28 1979-04-28 Two-color radiation temperature measuring method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5323279A JPS55144514A (en) 1979-04-28 1979-04-28 Two-color radiation temperature measuring method

Publications (1)

Publication Number Publication Date
JPS55144514A true JPS55144514A (en) 1980-11-11

Family

ID=12937060

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5323279A Pending JPS55144514A (en) 1979-04-28 1979-04-28 Two-color radiation temperature measuring method

Country Status (1)

Country Link
JP (1) JPS55144514A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6682216B1 (en) * 1999-12-16 2004-01-27 The Regents Of The University Of California Single-fiber multi-color pyrometry
US6817758B2 (en) * 2001-04-04 2004-11-16 Noritake Co., Limited Temperature distribution measuring method and apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6682216B1 (en) * 1999-12-16 2004-01-27 The Regents Of The University Of California Single-fiber multi-color pyrometry
US6817758B2 (en) * 2001-04-04 2004-11-16 Noritake Co., Limited Temperature distribution measuring method and apparatus

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