The most critical point in the realization of an electrical power standard based on a microcalorimeter is the accurate determination of the microcalorimeter losses and their effect on the measurand, i.e. the effective efficiency of the sensor under calibration. At IEN Galileo Ferraris, a procedure has been introduced that makes the microcalorimeter constant determination more accurate and reliable. Experiments with the 7-mm coaxial microcalorimeter in 50 MHz – 18 GHz range have shown a significant improvement in the uncertainty for the Italian national power standard at the 0.2% level.
New calibration method for coaxial microcalorimeters / Brunetti, Luciano; E. T., Vremera. - In: IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT. - ISSN 0018-9456. - 54:2(2005), pp. 684-687. [10.1109/TIM.2005.843555]
New calibration method for coaxial microcalorimeters
BRUNETTI, LUCIANO;
2005
Abstract
The most critical point in the realization of an electrical power standard based on a microcalorimeter is the accurate determination of the microcalorimeter losses and their effect on the measurand, i.e. the effective efficiency of the sensor under calibration. At IEN Galileo Ferraris, a procedure has been introduced that makes the microcalorimeter constant determination more accurate and reliable. Experiments with the 7-mm coaxial microcalorimeter in 50 MHz – 18 GHz range have shown a significant improvement in the uncertainty for the Italian national power standard at the 0.2% level.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
