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Calculated frequency characteristic of GR1482 inductance standards between 100 Hz and 100 kHz

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2 Author(s)
Hanke, R. ; Phys.-Tech. Bundesanstalt, Braunschweig, Germany ; Droge, K.

The Physikalisch-Technische Bundesansalt (PTB) calibrates inductance standards in the frequency range from 100 Hz to 100 kHz and beyond. The relative uncertainties achieved range from less than 5×10-5 to 5×10-4 (2σ) depending on the frequency and the value of the standards. Because of the strong frequency dependence of the inductance standards it is of interest to use a suitable equivalent circuit to calculate the most accurate approximation for the frequency variation. A model is presented which allows the values of a GR1482 inductance standard to be calculated over the whole frequency range from 100 Hz to 100 kHz within the measurement uncertainties

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Instrumentation and Measurement, IEEE Transactions on  (Volume:40 ,  Issue: 6 )