Measurement electrophysical properties of the dielectric

Abstract

Describes the installation and method for measuring the capacity of solid electrolytes. Measurement circuit is a capacitive voltage divider consisting of two capacitors in series included. A first capacitor is formed by two overlaid electrodes between which a sample. A second capacitor plate of the foil from two sides of fiberglass, fibers and foils which form a capacitor with exemplary known constant capacitance. To study the response of solid electrolytes to a weak alternating signal installation was made for the study of small-signal impedance. The experiment showed that use the device can measure the real and imaginary parts of the currents flowing through the sample to an accuracy not worse than 10 % at the minimum value of these currents up to 10–9 A
at 20 Hz -100 kHz. Described high-temperature cell for measuring the electrophysical parameters of solid electrolytes in gas atmospheres. The parameters of the heater needed to heat the working zone to a temperature of 973 K (700 °C).