A new method of determining the state of water and agricultural areas in real time

Nikita Sergeevich Myazin,Victoria Valerevna Yushkova,Vadim Vladimirovich Davydov,Vasiliy Yurevich Rud'

doi:10.5755/j01.erem.75.2.22352

Abstract

Paper discusses the technique of environmental condition monitoring based on the phenomenon of nuclear magnetic resonance (NMR). Express control is an integral part of agriculture, because when working on farms or in fields there are situations when it is physically impossible to deliver samples for research to a stationary laboratory (results are needed urgently or samples can change their properties during transportation). A brief review of the existing methods for monitoring the states of media in the express mode was carried out, their shortcomings were revealed and a new technical solution to this problem was proposed. For a small-sized NMR spectrometer, a new magnetic system and a signal registration circuit have been developed, which makes it possible to detect the NMR signal at different frequencies, thus registering the signal spectrum. In addition, this design also allows measuring the longitudinal and transverse relaxation times of the medium. With the help of the proposed technique, studies of various media have been carried out; the results of these studies are presented.

Highlights

In conditions of population growth and reduction of acreage, the role of efficient and rational use of agricultural lands is growing
The investigated medium is placed in a weak magnetic field that consists of two fields
Graph 1 corresponds to the nuclear magnetic resonance (NMR) signal from phosphorus nuclei; graph 2 corresponds to the NMR signal from protons

Summary

Introduction

In conditions of population growth and reduction of acreage, the role of efficient and rational use of agricultural lands is growing. New tasks that arise in the process of environmental monitoring require research in the express mode, based on the results of which it would be possible to take a decision both on the state of the environment and on its further use This is especially important during water environment testing (Arkhipov, 2017; Davydov and Myazin, 2017a; Davydov et al, 2017b; Karseev et al, 2015). The most used methods for express control of various media are the ones that do not significantly change the physical structure and chemical composition of the medium This is because workers have to investigate in details the sample of the medium in a stationary laboratory if they detect deviation in the state of it during express analysis (Davydov et al, 2014; Davydov and Myazin, 2017a; Davydov et al, 2017b; Vitkovskii and Marusina, 2016).

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Conclusion