Dual-wavelength radiation thermometry: Emissivity compensation algorithms

Autor:	D. P. DeWitt, W. N. Delgass, G. J. Dail, R. L. Shoemaker, Z. Dardas, Benjamin K. Tsai, B. A. Cowans
Rok vydání:	1990
Předmět:	Materials science business.industry Radiation Atmospheric temperature range Condensed Matter Physics Temperature measurement law.invention Compensation (engineering) Optics law Emissivity Radiometry Dual wavelength business Algorithm Pyrometer
Zdroj:	International Journal of Thermophysics. 11:269-281
ISSN:	1572-9567 0195-928X
DOI:	10.1007/bf00503877
Popis:	The traditional contact methods of temperature measurement for metal processing applications provide accuracies of ±10 K. Noncontact methods based upon emissivity compensation techniques have the potential for improved accuracy with greater ease of use but require prior knowledge of the target emissivity behavior. The features of the basie spectral and ratio methods and five dualwavelength methods are reviewed. Experiments were conducted on a series of aluminum alloys with different surface treatments characterized by x-ray photoelectron spectroscopy in the temperature range 600 to 750 K. Compensation algorithms that account for surface characteristics are required to achieve improved accuracy.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b492f87d6cbace97875c9a232ba157fc https://doi.org/10.1007/bf00503877 Zobrazit plný text záznamu Full text from SpringerLink