RF POWER STANDARD FROM AC-DC THERMAL CONVERTER

L. Brunetti, L. Oberto, M. Sellone
Abstract:
Below the frequency of 10 MHz, the calibration fails of electric power sensors made by means of microcalorimeters, mainly because of a reduced sensitivity of the measurement system. This produces a metrological gap in the power standard between the low frequency and radio frequency range. However, as TEM transmission line admits pseudo potential functions, power sensor calibration can be done on coaxial line also in term of RF voltage from DC up to 100 MHz at least. The paper describes how INRIM implements this calibration technique together with the obtained accuracy.
Keywords:
Power, RF-Voltage, Standard, Calibration
Download:
IMEKO-TC4-2011-006.pdf
DOI:
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Event details
IMEKO TC:
TC4
Event name:
TC4 Symposium 2011
Title:

XVIIIth IMEKO TC4 International Symposium on Measurement of Electrical Quantities (part of Metrologia2011, together with IX International Congress on Electrical Metrology - IX SEMETRO)

Place:
Natal, BRAZIL
Time:
27 September 2011 - 30 September 2011