SU1121610A1 - Pulse non-coherent nuclear quadrupole-resonance spectrometer - Google Patents

Abstract

1. PULSE INCORRECT YQR-SPECTROMETER containing a high-frequency pulse generator, an automatic frequency control system connected to the input of a high-frequency pulse generator, a pulse program block controlling the operation of a high-frequency pulse generator, an external generator connected to a high-frequency pulse generator, sequentially a connected inductor and a superheterodyne transducer consisting of a series-connected mixer, an intermediate frequency amplifier, a detector, and a deamplifier, as well as a local oscillator connected between an automatic frequency control system and a mixer, an accumulation unit and a recording device, characterized in that, in order to improve the accuracy of measuring the signal frequency, an amplifier with a control gain factor, a standby pulse generator, and a tuning detector are introduced into it in resonance, with one input of the amplifier with controlled gain i connected to the output of the video amplifier, another input connected to the output of the pulsed program block through a standby g pulse generator, and its output - to the detector settings in resonance. 2. An NQR spectrometer according to claim 1, characterized in that the detector for resonance tuning is made in the form of a IsD series-connected differential circuit, an amplitude detector, a filter of the lower frequencies and a switch instrument.

Description

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Claims (1)

1. PULSE NON-Coherent NUCR SPECTROMETER, comprising a high-frequency pulse generator, an automatic frequency control system connected to the input of a high-frequency pulse generator, a pulse program unit that controls the operation of a high-frequency pulse generator, an external generator connected to a high-frequency pulse generator, connected in series inductor and superheterodyne converter, consisting of a series-connected mixer, an intermediate frequency amplifier, a detector, and a video amplifier divisor and local oscillator connected between automatic frequency control system and a stirrer accumulation unit and recording unit, characterized in that, in order to increase the accuracy of frequency measurement signal, it introduced 'day! an amplifier with a controlled gain, a waiting pulse generator and a tuning detector in resonance, moreover, one input of an amplifier with a controlled gain is connected to the output of a video amplifier, g