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High accuracy AC current sources calibration by single junction thermal converters at INM
The National Metrology Institute of Colombia (INM) uses high accuracy calibrators (such as Fluke 5720A/5730A) as AC current reference standards. We describe the implementation at INM of AC-DC current transfer standards by single junction thermal converters (SJTC) to improve the accuracy of AC measurements and give traceability to the International System of Units (SI) within the country. We describe the measurement model, present the uncertainty budget estimation accordingly to the Guide to thedoi:10.15446/dyna.v88n216.86244 fatcat:3wid5v3hufbcjexvg2y3ywck5m