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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Design measure amplifier for magnetic measurement
 Hejtmánek, Tomáš ; Steinbauer, Miloslav (referee) ; Roubal, Zdeněk (advisor)
The purpose of this semester work is a design of a measuring preamplifier for a fluxmeter DTEE which is used for hysteresis loops on ferromagnetic materials measurements. Having respect to measure coils’ characteristics and processed voltage levels with ranges in nV and µV, there was necessary to investigate measure principles of such low voltage. And then choose an appropriate operational amplifier based on the result. Mainly with minimum input residual voltage and offset temperature dependency. Also was necessary to propose effective zero compensation and eliminate thermoelectric influence in the whole designed device. There was applied noise optimization of selected operational amplifier in PSpise software. The designed device will be assembled and tested. The given results will be evaluated together with possibilities of application for a measurement purposes in labs.
Detailed record
Design measure amplifier for magnetic measurement
 Hejtmánek, Tomáš ; Steinbauer, Miloslav (referee) ; Roubal, Zdeněk (advisor)
The purpose of this semester work is a design of a measuring preamplifier for a fluxmeter DTEE which is used for hysteresis loops on ferromagnetic materials measurements. Having respect to measure coils’ characteristics and processed voltage levels with ranges in nV and µV, there was necessary to investigate measure principles of such low voltage. And then choose an appropriate operational amplifier based on the result. Mainly with minimum input residual voltage and offset temperature dependency. Also was necessary to propose effective zero compensation and eliminate thermoelectric influence in the whole designed device. There was applied noise optimization of selected operational amplifier in PSpise software. The designed device will be assembled and tested. The given results will be evaluated together with possibilities of application for a measurement purposes in labs.
Detailed record

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