Multi-Wavelength Pyrometry
- 1 July 1981
- journal article
- Published by IOP Publishing in Metrologia
- Vol. 17 (3), 103-109
- https://doi.org/10.1088/0026-1394/17/3/006
Abstract
The main problem in the application of radiation pyrometry to the measurement of true surface temperatures is the large error arising from the unknown or varying emissivity of the surface. The nature of the additional information required for the class of techniques which utilize only the thermal radiation emitted from the surface is discussed. The suggestions that multi-wavelength pyrometry, requiring measurements at many different wavelengths, may be employed to solve the problem without additional information are analyzed, and shown to possess distinct disadvantages.Keywords
This publication has 8 references indexed in Scilit:
- Multi-wavelength radiation pyrometry where reflectance is measured to estimate emissivityJournal of Physics E: Scientific Instruments, 1980
- A precise determination of the freezing point of copperJournal of Physics F: Metal Physics, 1978
- Wavelength Specification in Optical and Photoelectric PyrometryMetrologia, 1977
- The foundations of thermometryReports on Progress in Physics, 1975
- Properties of Photons determined by Interferometric SpectroscopyNature, 1972
- Polaradiometer—a New Instrument for Temperature MeasurementReview of Scientific Instruments, 1967
- A review of multicolour pyrometry for temperatures below 1500 CBritish Journal of Applied Physics, 1964
- An automatic emissivity-compensated radiation pyrometerJournal of Scientific Instruments, 1963