Title :
Evaluation of AC-DC differences of NML single-junction thermal voltage converters at frequencies up to 1 MHz
Author :
Budovsky, Ilya ; Inglis, Barry D.
Author_Institution :
Nat. Meas. Lab., CSIRO, Lindfield, NSW, Australia
Abstract :
The paper presents the results of the evaluation of frequency dependent AC-DC transfer differences for a new set of single-junction thermal converters that serve at NML as primary standards for AC-DC transfer. The new evaluation described has led to a reduction of the 1-σ measurement uncertainty from 30 ppm to less than 10 ppm at frequencies up to 1 MHz
Keywords :
convertors; measurement errors; measurement uncertainty; skin effect; transfer standards; 1 MHz; 1-σ measurement uncertainty reduction; AC-DC transfer differences; NML; frequency dependent AC-DC transfer; primary standards; single-junction thermal voltage converters; Analog-digital conversion; Current measurement; Frequency conversion; Inductance; Laboratories; Power measurement; Resistors; Thermal resistance; Uncertainty; Voltage;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1999. IMTC/99. Proceedings of the 16th IEEE
Conference_Location :
Venice
Print_ISBN :
0-7803-5276-9
DOI :
10.1109/IMTC.1999.776051
