Měření hysterézní smyčky feromagnetika pomocí osciloskopu - laboratorní úloha

Abstract

This thesis deals with the measurement of the hysteresis loop by using an oscilloscope. Hysteresis loop expresses graphical dependence of the intensity of magnetic field on the magnetic induction. The main advantage of using the oscilloscope is graphical displaying of the hysteresis loop and a graphical illustration. Measured objects are different kinds of materials and shapes. The main aim of this thesis is the design, implementation and description of the preparation, which is used by measuring the hysteresis loop. The preparation consists of several blocks. A power amplifier is the first block, which amplify the signal from the signal generator. The amplified signal is lead to primary winding, where a magnetic field on a given intensity is created. Next the design solutions of integrator, which is used to integrate the secondary voltage is solved in this thesis. This thesis presents block diagram and connections between parts, as has been designed. The results of measurements and their description are presented at the end of the thesis.