FIELD: radio engineering. SUBSTANCE: method involves generation of pulse sequence which consists of reference and information radio frequency pulses with two basic frequencies, one of which is equal to frequency of information pulse. Then method involves application of this sequence to sample which has quadruple nuclei with three-level spin system, detection of echo signals and alternation of time intervals between excitation pulses, and then at frequency of lower transition which is equal to frequency of information pulse. EFFECT: increased delay time regulation range. 2 dwg
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