ACCURATE UNIVERSAL SET OF AUTOMATIC COMPARATORS FOR IMPEDANCE PARAMETERS UNITS REPRODUCTION AND TRANSFER |
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| M. Surdu, A. Lameko, D. Surdu, S. Kursin, M. Mukharovsky, A. Akhmadov,S. Shevkun |
- Abstract:
- Comparison and unit transfer of the impedance parameter is provided using a lot of different very complicate manual bridges with numerous different standards. The main world-renowned laboratories (BIPM, NIST, NML, NPL, PTB, VNIIM, etc) in developed countries have their own primary standards, based on the Calculable Capacitor and appropriate transformer bridges, on the Quantum Hall Resistance and appropriate bridges and very accurate quadrature bridges for comparison of different impedance parameters, having original constructions. All these bridges constitute a very complicate set of devices that have long and intricate balance processes. In addition, these bridges and standards are divided into different sets and are disposed in various laboratories. The process of calibration and traceability is, therefore, complicate and very expensive. The project (No 2244, Science and Technology Center in Ukraine, see site www.stcu.int) supported by the USA and the EU, was aimed to create the set of accurate automatic bridges-comparators and the set of thermostated intermediary standards for impedance units traceability and reproduction. Here we show the results of the implementation of this project.
- Keywords:
- impedance, measurement, traceability, unit reproduction, precision, uncertainty
- Download:
- IMEKO-TC4-2011-026.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC4
- Event name:
- TC4 Symposium 2011
- Title:
XVIIIth IMEKO TC4 International Symposium on Measurement of Electrical Quantities (part of Metrologia2011, together with IX International Congress on Electrical Metrology - IX SEMETRO)
- Place:
- Natal, BRAZIL
- Time:
- 27 September 2011 - 30 September 2011