Journal of Physical Studies 1(1), 126–129 (1996)
DOI: https://doi.org/10.30970/jps.01.126

EXPERIMENTAL EQUIPMENT AND PROCEDURE FOR THE INVESTIGATION OF SEMICONDUCTORS GALVANOMAGNETIC PROPERTIES IN PULSED MAGNETIC FIELDS

V. G. Savitsky, P. E. Storchun
Institute of Applied Physics at Ivan Franko Lviv State University
49 Pushkin Str., Lviv UA-290044, Ukraine

Experimental equipment and procedure for the investigation of semiconductors galvanomagnetic properties in pulsed magnetic fields are presented. The experimental equipment consists of the pulsed magnetic field generation system with the amplitude ($B_{max}$) up to 20$T$ and a data-recording unit. The compensation of pickup noise-voltage induced by the pulsed magnetic field is originaly realized by compensating coils with the variable effective area. The analog amplifiers unit and the integrator that are a part of the data-recording unit form two measuring channels respectively. The output voltage from these channels are switched by the electronic analog commutator to the input of high-speed ADC in the program preset order. The results of analog-to-digital conversion (12 bits+one overflow bit) and channel number (3 bits) are then entered into RAM (2048$\times$16bits) and respectively transmitted to the personal computer when the experiment is completed. The ADC high-speed performance allows for 2048 measurements during 2-2.5 periods of the magnetic field oscillation.}