Title :
Improving the primary power standard below 10 MHz with thermoelectric sensors
Author :
Brunetti, L. ; Oberto, L. ; Sellone, M.
Author_Institution :
Ist. Naz. di Ricerca in Metrologia, Torino
Abstract :
High frequency power standard is quite everywhere implemented using the microcalorimeter technique. At INRiM a twin type coaxial microcalorimeter is used to measure the effective efficiency of thermoelectric detectors from direct current up to 40 GHz. However, below 10 MHz there is a lack of sensitivity that reduces the power standard accuracy. To work around the problem, we propose to calibrate the power detectors trough RF voltage measurements in the lowest frequency band.
Keywords :
calibration; calorimetry; measurement standards; microsensors; microwave measurement; power measurement; thermoelectric devices; INRiM; calibration; high-frequency power standard; power detectors; primary power standard; thermoelectric detectors; thermoelectric sensors; trough RF voltage measurement; twin type coaxial microcalorimeter technique; Bolometers; Coaxial components; Detectors; Electromagnetic heating; Hafnium; Power measurement; Radio frequency; Thermal sensors; Thermoelectricity; Voltage measurement;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2008. CPEM 2008. Conference on
Conference_Location :
Broomfield, CO
Print_ISBN :
978-1-4244-2399-6
Electronic_ISBN :
978-1-4244-2400-9
DOI :
10.1109/CPEM.2008.4574881
