Temperature Dependence of the New Calibration Infrastructure for Impedance Metrology

This paper addresses issues relating to the temperature stability of impedance infrastructure used for the realization of impedance units and the calibration of measuring instruments. A description of the new infrastructure for impedance metrology recently developed in Poland is provided. We present the results of measurements of temperature coefficients for four-port resistance standards and two-port capacitors used in the permuting capacitor device. We also report the results of stability tests of the recently developed temperature-controlled capacitance set. The results demonstrate excellent temperature stability for the impedance components and serve as an important source of information for selecting environmental conditions during comparisons and routine calibration.