The sensitivity of a method to predict a capacitor´s frequency characteristic

Several groups have worked on the characterization of four terminal-pair (4TP) capacitance standards at high frequencies. This paper describes a variation of the technique to predict a capacitor´s frequency characteristic. The method is sensitive to regression parameter selection and the paper gives a detailed analysis of the techniques used to calculate reasonable values for these parameters. The results of the analysis of the capacitor frequency characteristic prediction method´s sensitivity to exponent parameter variation have shown that this sensitivity is a major uncertainty component in the uncertainty analysis of NIST´s capacitance standard measurement system