Examination of a Fabricated Impedance Meter by Analysing the Electrical Properties of Ni0.65Zn0.35Fe2O4 (Ferro-Magnetic) Material

Abstract

Impedance (Z) may be defined as the total opposition by a component (or electronic material) that offers to the AC (alternating current) at an applied signal frequency, parameters of impedance are utilized to analyze materials/electronic components characteristics. Impedance/LCR measuring instrumentation are costly or either do not enough accuracy and may have limited frequency range. There are many impedance measurement methods, each of which has their own pros and cons. While considering factors like frequency range, measurement band width, accuracy in measurement and its ease of operation, there is no single impedance measurement instrument that includes all these parameters. This research article describes a handy/portable impedance meter that depends on auto balancing bridge technique, which is capable of making impedance parameter measurements up to 20 Mhz frequency. An analog frequency generator was made up of max038 (IC) which stimulates the impedance measurement circuit that was composed of reference and also the impedances that are unknown. The applied frequency through the impedances (electronic materials) and their electronic parametrics like inseries inductance (Ls), inparallel capacitance (Cp) and inseries resistance (Rs) along with some sub-parameters were first digitalized and then displays. The fabricated impedance meter’s performance was analysed by correlating the results obtained by it, with the results of a commercially available impedance instrument-the Newton 4 th limited, NumetriQ, Model no. PSM-1735, for different composite electronic materials, some of them are multi-ferrites, ferroelectric and ferro-magnetic, materials. For every material, the error percentage was analysed; which is less than 3% was observed. In this paper, Ni0.65Zn0.35Fe2O4 -Ferro-magnetic material’s both thermal properties and electrical properties were analysed by fabricated and by the commercial instruments. Results are tabulated and then graphs are plotted.