Uncertainty analysis for four terminal-pair capacitance and dissipation factor characterization at 1 and 10 MHz

The Electricity Division at the Nationals Institute of Standards and Techno logy (NIST, formerly NBS) has developed the capability to characterize capa citance and dissipation factor for four terminal-pair (4TP) air dielectric capacitors at frequencies from 1 kHz to 10 MHz, The method, based on work b y Cutkosy and Jones of NBS and recent developments by Hewlett-Packard Japan , involves single-port network analyzer impedance measurements at frequenci es from 40 MHz to 200 MHz and capacitance measurements using a precision 1 kHz capacitance meter, A mathematical regression algorithm is used to extra polate inductance and resistance measurements from the network analyzer dow n to 1 kHz in order to predict capacitance and dissipation factor from 1 kH z to 10 MHz. A comprehensive uncertainty analysis for the procedure is pres ented.