Investigation of pulsed magnetic field inductors

Abstract

In this master of science thesis pulsed magnetic field inductors were investigated. First of all pulse generator as a whole was studied and it was modelled by using computer tools. The reliability of model was tested experimentaly and proven. Experiments on readily designed various pulsed magnetic field inductors were performed to investigate pulsed magnetic flux density distribution in the center of inductor bore. In addition to this, computer models were developed to conduct previous analysis to obtain magnetic flux density distribution in the center of inductor bores and accurate results compared to experimental ones were obtained. Finally pulsed magnetic field inductor design algorithm was developed by using previous models in addition to electrophysical process analysis in inductor windings during pulse generation. Using this algorithm inductor design for colossal magnetoresistive sensor testing application was proposed.

Šiame magistro darbe yra tiriami impulsinio magnetinio lauko induktoriai. Iš pradţių yra išnagrinėjamas ir sumodeliuojamas impulsinio magnetinio lauko generatorius. Modelio patikimumas yra patikrinamas eksperimentiškai. Atlikti eksperimentai, kurių metu ištirtas magnetinio srauto tankio pasiskirstymas induktorių centre. Taip pat atliktas magnetinio srauto tankio induktorių centre modeliavimas ir rezultatų palyginimas su eksperimentiniais rezultatais. Taip pat atliktas impulsinio magnetinio lauko induktorių modeliavimas, įskaitant mechaninius ir termodinaminius procesus juose. Naudojant šį algoritmą, pasiūlyta induktoriaus, skirto milţiniškos magnetovarţos jutiklių tyrimams iki 40 T, konstrukcija.