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Proceedings Paper

Realization of photometric standards by ECARs and trap detectors: a comparison of different methods
Author(s): Stefania Castelletto; Maria Luisa Rastello
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Paper Abstract

This paper presents a comparison of two different methods for the realization of the SI unit of luminous intensity, the candela. A measurement system has been set up at IEN for comparing results obtained by a standard ECAR technique with those based on the work of Ikonen et al. on trap detectors. The paper highlights some of the problems encountered; preliminary results show that the agreement between the two methods is within the declared uncertainty and suggests promising areas for future works.

Paper Details

Date Published: 26 September 1995
PDF: 8 pages
Proc. SPIE 2550, Photodetectors and Power Meters II, (26 September 1995); doi: 10.1117/12.221417
Show Author Affiliations
Stefania Castelletto, Politecnico di Torino (Italy)
Maria Luisa Rastello, Istituto Elettrotechnico Nazionale Galileo Ferraris (Italy)

Published in SPIE Proceedings Vol. 2550:
Photodetectors and Power Meters II
Kathleen Muray; Kenneth J. Kaufmann, Editor(s)

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