IMPLEMENTATION OF PULSED NQR RADIOSPECTROSCOPY METHODS ON FPGA
Journal Title: Вчені записки Таврійського національного університету імені В. І. Вернадського. Серія: Технічні науки - Year 2018, Vol 29, Issue 3
Abstract
A multi-functional programmer of pulse sequences for NQR Fourier spectrometer has been developed on the basis of FPGA. The experimental test results have shown that the device assures shaping of pulsed sequences necessary for the pursuance of relaxation research in the frequency range of 1–50 MHz. The proposed programmer allows shaping of one, two and multi-pulsed sequences which enables the experiments on measuring relaxation times using the methods of Hahn, Carr-Purcell, Meiboom-Gill, et al. Owing to a wide range of change in pulse lengths and the possibility of shaping various sequences, this programmer assures a change in parameters Т1, Т2, Т2. Digital shaping of pulse sequences implemented in the proposed product assures high stability and accuracy of all temporal relations. The programmer guarantees phase binding of high-frequency filling of video pulses to pulse fronts.
Authors and Affiliations
А. П. Саміла, Г. М. Розорінов, О. В. Гресь
Keywords
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