Title :
Calculated frequency characteristic of GR1482 inductance standards between 100 Hz and 100 kHz
Author :
Hanke, R. ; Dröge, K.
Author_Institution :
Phys.-Tech. Bundesanstalt, Braunschweig, Germany
fDate :
12/1/1991 12:00:00 AM
Abstract :
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
Keywords :
inductance measurement; measurement errors; measurement standards; 100 Hz to 100 kHz; GR1482 inductance standards; PTB; Physikalisch-Technische Bundesansalt; calibration; equivalent circuit; frequency dependence; frequency variation; measurement uncertainties; model; Bridge circuits; Calibration; Eddy currents; Equations; Equivalent circuits; Frequency measurement; Inductance measurement; Measurement standards; Skin effect; Uncertainty;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
