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Automatic RF voltage calibration with a primary voltage standard up to 1 GHz

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4 Author(s)
Gierke, H. ; Phys.-Tech. Bundesanstalt, Braunschweig, Germany ; Grno, L. ; Janik, Dieter ; Munter, K.

An automatic system for the calibration of RF voltage transfer standards in the frequency range between 1 MHz and 1 GHz is described. It incorporates a coaxial dual dry-load calorimeter as a primary voltage standard, with an automated computer-controlled DC voltage balance. By means of comparison measurements with a thermal voltage converter, the estimated relative uncertainties (2σ) for frequencies between 1 MHz and 100 MHz have been reduced by a factor of two to values between 0.01% and 0.1%

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Instrumentation and Measurement, IEEE Transactions on  (Volume:42 ,  Issue: 2 )