Eur. Phys. J. Appl. Phys.
Volume 43, Number 2, August 2008
|Page(s)||239 - 244|
|Section||Instrumentation and Metrology|
|Published online||10 July 2008|
On coaxial microcalorimeter calibration
Istituto Nazionale di Ricerca Metrologica – Strada delle Cacce 91,
10135 Torino, Italy
2 Politecnico di Torino – Corso Duca degli Abruzzi 24, 10129 Torino, Italy
Corresponding author: email@example.com
Accepted: 21 May 2008
Published online: 10 July 2008
Primary power standards in the microwave domain are realized using a calorimetric technique, usually identified with the used measurement system, i.e., the microcalorimeter. It is adjusted for measurement of power ratios with a relative accuracy that, after an appropriate system calibration, is of order of 10−3, at least in the microwave domain (1 GHz–18 GHz). Hereby we describe the calibration process implemented at the Istituto Nazionale di Ricerca Metrologica (Italy) for realizing a coaxial power standard based on indirect heating thermocouples. Particular regard is devoted to describe the nearly ideal thermal load used for determining the microcalorimeter losses and their influence on the measurand accuracy.
PACS: 06.20.F- – Units and standards / 06.30.Ka – Basic electromagnetic quantities / 07.57.-c – Infrared, submillimeter wave, microwave and radiowave instruments and equipment
© EDP Sciences, 2008
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.