Synthesis of a Non-Bridge Circuit with Module Balancing Designed to Measure the Dielectric Loss Factor tan δ

This article presents an evaluation of the possibility of synthesis of a non-bridge system for measuring the dielectric loss coefficient on the basis of a simple bridge circuit. A rare feature of this bridge is that the circuit is brought to two equilibrium states, in which the modules of selected bridge voltages are equal. A favorable feature of the system is its maximum convergence, which greatly facilitates its balancing process. Equations describing the output signals of the bridge were derived, and then the structure of a non-bridge system was developed. An assessment of errors and system uncertainty is presented. The developed system can be easily digitized and built as a virtual instrument.