Title :
Realization of the Henry at METAS
Author_Institution :
Fed. Office of Metrol. METAS, Bern-Wabern, Switzerland
Abstract :
This paper describes a measurement set up based on a synchronous sampling system which allows the realization of the henry directly from the ohm and the second. This new set up improved the realization of the henry at METAS by a factor of 5. For the calibration of a 100 mH inductance standard at a frequency of 1 kHz, the expanded uncertainty amounts now to 15 muH/H.
Keywords :
calibration; inductance measurement; measurement standards; sampling methods; units (measurement); calibration; frequency 1 kHz; henry; inductance standard; measurement set up; ohm; second; synchronous sampling system; Bridge circuits; Calibration; Electrical resistance measurement; Equations; Impedance; Inductance; Kelvin; Sampling methods; Uncertainty; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2008. CPEM 2008. Conference on
Conference_Location :
Broomfield, CO
Print_ISBN :
978-1-4244-2399-6
Electronic_ISBN :
978-1-4244-2400-9
DOI :
10.1109/CPEM.2008.4574976
