A new calibration method related to a twin-type microcalorimeter is proposed for high-frequency power sensors. This method is based on intrinsic compensation of feeding line losses, operation that results in a unitary-gain microcalorimeter, whose mathematical model becomes similar to that of the lossless ideal system. Moreover, the time-consuming procedure required for a proper and autonomous microcalorimeter calibration, based on short or open-circuit load, is not necessary, and themicrocalorimeter mount–dismount operation between raw measurements and microcalorimeter calibration steps disappears. The overall measurement time becomes about two times shorter when this system is used for the effective efficiency calibration of power sensors.
Power sensor calibration by implementing true-twin microcalorimeter / Vremera, E; Brunetti, Luciano; Oberto, Luca; Sellone, Marco. - In: IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT. - ISSN 0018-9456. - 60:7(2011), pp. 2335-2340. [10.1109/TIM.2010.2091300]
Power sensor calibration by implementing true-twin microcalorimeter
BRUNETTI, LUCIANO;OBERTO, LUCA;SELLONE, MARCO
2011
Abstract
A new calibration method related to a twin-type microcalorimeter is proposed for high-frequency power sensors. This method is based on intrinsic compensation of feeding line losses, operation that results in a unitary-gain microcalorimeter, whose mathematical model becomes similar to that of the lossless ideal system. Moreover, the time-consuming procedure required for a proper and autonomous microcalorimeter calibration, based on short or open-circuit load, is not necessary, and themicrocalorimeter mount–dismount operation between raw measurements and microcalorimeter calibration steps disappears. The overall measurement time becomes about two times shorter when this system is used for the effective efficiency calibration of power sensors.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
