ABSTRACT

Possibilities and methods of measuring the inductance of inductive elements depend on the form and properties of mathematical models assigned to them. Like in a case of any measurement, one can only measure phenomena, which is able to be described mathematically. The representation error of actual properties of inductive elements models is always limited and its value can be selected. Impedance (or transmittance) measurement methods for inductive elements used for determination of their inductance can be divided into three basic groups: current–voltage methods; bridge and differential methods; and resonant methods. Current–voltage methods are presently a wide group of measurement methods employed in inductance measurements of all types of inductive elements. The errors of equivalent resistance measurements of inductive elements using bridge methods are higher than the errors of inductance measurements. In resonance methods, the quality factor and dissipation factor are defined for the equivalent circuit of inductive elements.