Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

NIST-PTB Measurements of the Radiometric Temperatures of a High-Temperature Black Body Using Filter Radiometers

Published

Author(s)

Howard W. Yoon, P Sperfeld, S Galal Yousef, J Metzdorf

Abstract

The results of a bilateral intercomparison of radiometric temperatures of a high-temperature blackbody from 2100 K to 3100 K measured using filter radiometers are described. The measurements took place over a ten-day period in October 1998 at the PTB-Braunschweig using filter radiometers from the PTB and from the NIST. The intercomparison revealed that the radiometric temperatures determined using the NIST and the PTB filter radiometers differed from each other by 2.4 K at 2100 K to 5.1 K at 3200 K, with the NIST values always lower in temperature than the PTB values. The main cause of the temperature difference was due to the difference the absolute spectral responsivity leading to a difference in the radiometric temperatures.
Citation
Metrologia
Volume
37
Issue
No. 5

Keywords

absolute radiometry, filter radiometers, intercomparison, radiometric temperature, spectral irradiance responsivity

Citation

Yoon, H. , Sperfeld, P. , , S. and Metzdorf, J. (2000), NIST-PTB Measurements of the Radiometric Temperatures of a High-Temperature Black Body Using Filter Radiometers, Metrologia (Accessed June 16, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created January 1, 2000, Updated February 17, 2017