High accuracy AC current sources calibration by single junction thermal converters at INM
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad Nacional de Colombia
2021
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| _version_ | 1876491409230397440 |
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| author | Carlos Fernando Hernández-Prada |
| author_facet | Carlos Fernando Hernández-Prada |
| contents | High accuracy AC current sources calibration by single junction thermal converters at INM Carlos Fernando Hernández-Prada Mauricio Sáchica-Avellaneda Alexander Martínez-López Ingeniería AC calibration traceability alternating current (AC) thermal current converter 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 the Expression of Uncertainty in Measurement (GUM) and analyze the effect of temperature and electrostatic on measurements. Expanded uncertainties between 68 µA/A and 2.6 mA/A were obtained for the calibration of high accuracy calibrators and transconductance amplifiers for currents from 5 mA to 20 A (40 Hz to 5 kHz). The obtained measurement results are compatible with calibration results from the National Metrology Institutes like Centro Nacional de Metrología from Mexico (CENAM) and Accredited International Laboratories like Fluke. 2021 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49668215015 https://www.redalyc.org/journal/496/49668215015/ https://www.redalyc.org/journal/496/49668215015/html/ https://www.redalyc.org/journal/496/49668215015/49668215015.epub https://www.redalyc.org/journal/496/49668215015/movil 10.15446/dyna.v88n216.86244 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.216 Vol.88 |
| format | Artículo científico |
| id | redalyc_49668215015 |
| institution | Redalyc |
| language | en |
| publishDate | 2021 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | High accuracy AC current sources calibration by single junction thermal converters at INM Carlos Fernando Hernández-Prada Ingeniería AC calibration traceability alternating current (AC) thermal current converter High accuracy AC current sources calibration by single junction thermal converters at INM Carlos Fernando Hernández-Prada Mauricio Sáchica-Avellaneda Alexander Martínez-López Ingeniería AC calibration traceability alternating current (AC) thermal current converter 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 the Expression of Uncertainty in Measurement (GUM) and analyze the effect of temperature and electrostatic on measurements. Expanded uncertainties between 68 µA/A and 2.6 mA/A were obtained for the calibration of high accuracy calibrators and transconductance amplifiers for currents from 5 mA to 20 A (40 Hz to 5 kHz). The obtained measurement results are compatible with calibration results from the National Metrology Institutes like Centro Nacional de Metrología from Mexico (CENAM) and Accredited International Laboratories like Fluke. 2021 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49668215015 https://www.redalyc.org/journal/496/49668215015/ https://www.redalyc.org/journal/496/49668215015/html/ https://www.redalyc.org/journal/496/49668215015/49668215015.epub https://www.redalyc.org/journal/496/49668215015/movil 10.15446/dyna.v88n216.86244 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.216 Vol.88 |
| title | High accuracy AC current sources calibration by single junction thermal converters at INM |
| topic | Ingeniería AC calibration traceability alternating current (AC) thermal current converter |
| url | https://www.redalyc.org/articulo.oa?id=49668215015 https://www.redalyc.org/journal/496/49668215015/ https://www.redalyc.org/journal/496/49668215015/html/ https://www.redalyc.org/journal/496/49668215015/49668215015.epub https://www.redalyc.org/journal/496/49668215015/movil |