JPS5642118A - Method and apparatus for measuring temperature of n kinds of objects - Google Patents

Method and apparatus for measuring temperature of n kinds of objects

Info

Publication number
JPS5642118A
JPS5642118A JP11833079A JP11833079A JPS5642118A JP S5642118 A JPS5642118 A JP S5642118A JP 11833079 A JP11833079 A JP 11833079A JP 11833079 A JP11833079 A JP 11833079A JP S5642118 A JPS5642118 A JP S5642118A
Authority
JP
Japan
Prior art keywords
objects
kinds
temperatures
dispersed
radiant
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
JP11833079A
Other languages
Japanese (ja)
Other versions
JPS6138805B2 (en
Inventor
Ichizo Tagami
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.)
IHI Corp
Original Assignee
IHI 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 IHI Corp filed Critical IHI Corp
Priority to JP11833079A priority Critical patent/JPS5642118A/en
Priority to DE19803031959 priority patent/DE3031959A1/en
Priority to US06/181,745 priority patent/US4411519A/en
Priority to GB8027663A priority patent/GB2062218B/en
Priority to SE8005998A priority patent/SE455443B/en
Publication of JPS5642118A publication Critical patent/JPS5642118A/en
Publication of JPS6138805B2 publication Critical patent/JPS6138805B2/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

Abstract

PURPOSE:To measure the temperatures and spectral transmittanse of plural objects being measured, by a method wherein the radiant fluxes from N kinds of objects are received as a single radiant flux, the flux is dispersed into 2N effective wavelengths, and the obtained digital values are put in a predetermined equation to solve the latter. CONSTITUTION:The radiant fluxes from the N kinds of objects 2 are received as a single radiant flux, which is dispersed into 2N effective wavelengths with the relation (1/lambdai)-(1/lambda1+i)=alpha being maintained between adjacent effective wavelengths, where i=1, 2, 3,..., 2N-1. The dispersed radiant fluxes are converted into electrical digital values Xi by a converter 4, and equation I is solved by using the values of alpha so as to obtain the temperatures of the N kinds of objects 2. In equation I, epsilonn is the spectral admittance representative of the spectral admittance of the N kinds of objects; Un=eXp(-C2/Tn); Yi=(Xilambda1<5>/giC1); Tn is the temperature representative of the temperatures of the N kinds of objects; gi1 is the gain of measurement at the effective wavelength lambdai; C1=3.7415X10<-16>Wm<2>; and C2=1.43879X10<-2>m.deg.
JP11833079A 1979-08-28 1979-09-15 Method and apparatus for measuring temperature of n kinds of objects Granted JPS5642118A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP11833079A JPS5642118A (en) 1979-09-15 1979-09-15 Method and apparatus for measuring temperature of n kinds of objects
DE19803031959 DE3031959A1 (en) 1979-08-28 1980-08-25 METHOD AND ARRANGEMENT FOR MEASURING THE TEMPERATURE AND SPECTRAL FACTOR OF SAMPLES
US06/181,745 US4411519A (en) 1979-08-28 1980-08-27 Method of and system for measuring temperature and spectral factor
GB8027663A GB2062218B (en) 1979-08-28 1980-08-27 Method of and system for measuring temperature and spectral factor
SE8005998A SE455443B (en) 1979-08-28 1980-08-27 PROCEDURE FOR SEATING THE TEMPERATURE AND A SPECTRAL FACTOR FOR A SAMPLE BODY AND A PROCEDURE FOR SEATING THE TEMPERATURE AND SPECTRAL FACTOR FOR SAMPLES OF DIFFERENT TYPES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11833079A JPS5642118A (en) 1979-09-15 1979-09-15 Method and apparatus for measuring temperature of n kinds of objects

Publications (2)

Publication Number Publication Date
JPS5642118A true JPS5642118A (en) 1981-04-20
JPS6138805B2 JPS6138805B2 (en) 1986-09-01

Family

ID=14733987

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11833079A Granted JPS5642118A (en) 1979-08-28 1979-09-15 Method and apparatus for measuring temperature of n kinds of objects

Country Status (1)

Country Link
JP (1) JPS5642118A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011117958A (en) * 2009-11-30 2011-06-16 General Electric Co <Ge> Multiple wavelength thermometer
JP2011209272A (en) * 2010-03-30 2011-10-20 General Electric Co <Ge> Multi-spectral pyrometry imaging system
JP2012132442A (en) * 2010-12-17 2012-07-12 General Electric Co <Ge> System and method for detecting spall within turbine engine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011117958A (en) * 2009-11-30 2011-06-16 General Electric Co <Ge> Multiple wavelength thermometer
US8790006B2 (en) 2009-11-30 2014-07-29 General Electric Company Multiwavelength thermometer
JP2011209272A (en) * 2010-03-30 2011-10-20 General Electric Co <Ge> Multi-spectral pyrometry imaging system
JP2012132442A (en) * 2010-12-17 2012-07-12 General Electric Co <Ge> System and method for detecting spall within turbine engine
US10132688B2 (en) 2010-12-17 2018-11-20 General Electric Company System and method for detecting spall within a turbine engine

Also Published As

Publication number Publication date
JPS6138805B2 (en) 1986-09-01

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