Eur. Phys. J. A (2008) 38: 167-171
https://doi.org/10.1140/epja/i2008-10666-6

Regular Article - Experimental Physics

Emissivity measurements of opaque gray bodies up to 2000 °C by a dual-frequency pyrometer

¹ Laboratori Nazionali di Legnaro, INFN, V.le dell’Università 2, 35122, Legnaro (PD), Italy
² Dipartimento di Ingegneria Meccanica - Settore Materiali, Università di Padova, Via Marzolo 9, 35131, Padova, Italy
³ Dipartimento di Ingegneria Meccanica, Università di Padova, Via Venezia 1, 35131, Padova, Italy

^* e-mail: lisa.biasetto@lnl.infn.it

Received: 19 March 2008
Revised: 3 October 2008
Accepted: 14 October 2008
Published online: 6 November 2008

Abstract

In the framework of the SPES project at LNL-INFN a method for emissivity measurements by a double-frequency pyrometer in the infrared region at high temperatures on opaque gray bodies of SiC and graphite is presented. The measurement method proposed in this work reveals a good fitting with literature values. Moreover, the effect of surface finishing on emissivity values has been investigated.