Presented is a proof-of-concept experiment to realise the microwave primary power standard with a true-twin microcalorimeter. Double feeding line microcalorimeters are widely used by national metrology institutes. A drawback concerns the system calibration: traditional processes change measurement conditions between system characteris- ation and the measurement stage. Nevertheless, if the feeding lines are made twin, a measurement scheme that avoids separate characterisation can be applied, equations simplified and time consumption is halved. Here the feasibility of the idea is demonstrated. The result of an effective efficiency spectroscopy of a thermoelectric power sensor is compared with figures obtained with well-established methods.
The True-Twin microcalorimeter: a proof-of-concept experiment / Oberto, Luca; Brunetti, Luciano; Sellone, Marco. - In: ELECTRONICS LETTERS. - ISSN 0013-5194. - 47:9(2011), pp. 550-551. [10.1049/el.2011.0089]
The True-Twin microcalorimeter: a proof-of-concept experiment
OBERTO, LUCA;BRUNETTI, LUCIANO;SELLONE, MARCO
2011
Abstract
Presented is a proof-of-concept experiment to realise the microwave primary power standard with a true-twin microcalorimeter. Double feeding line microcalorimeters are widely used by national metrology institutes. A drawback concerns the system calibration: traditional processes change measurement conditions between system characteris- ation and the measurement stage. Nevertheless, if the feeding lines are made twin, a measurement scheme that avoids separate characterisation can be applied, equations simplified and time consumption is halved. Here the feasibility of the idea is demonstrated. The result of an effective efficiency spectroscopy of a thermoelectric power sensor is compared with figures obtained with well-established methods.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
