Development of automatic contactless ultrasound method of soil density analysis
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Дата
2021
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Анотація
Agriculture is one of the most important industries, providing the
population with food and raw materials for a number of industries represented in
almost all countries. The food security of the state and its citizens depends on the state
of agriculture. The introduction of automated systems in agriculture will improve,
facilitate and make this industry more productive.
Determining the depth of plowing is one of the important parameters in tillage,
on which the crop directly depends. Soil hardness monitoring is a real basis not only
for ensuring energy savings in tillage, but also a basis for the rational use of resources
to ensure a good harvest.
The main tool for determining soil density is a penetrometer. The analysis of
design features of modern models of penetrometers and the main results of researches
of working processes in them is carried out. The disadvantages of electronic pin
penetrometers are the need to accurately control the depth of immersion of the rod due
to the smooth and perpendicular deepening into the ground, which increases the time
of one measurement and the whole field, in addition, it is possible to separate the rod
in stone and misinterpretation of the data, and some other technical nuances. In
addition to technical shortcomings, in our opinion, the disadvantage of the modern
penetrometer is its narrow, limited specialization, aimed only at measuring soil
density.
To study the propagation of ultrasonic vibrations in a medium with different
hardness layers, a numerical simulation of the process was performed using the
software package COMSOL Multiphysics 5.5. Which will give new foundations for the
development of this area.The coordination of the ultrasonic signal emitter and the ground is considered separately.
Experimental studies were also conducted to verify the proposed method for
determining soil density.
Опис
Moroz A. Development of automatic contactless ultrasound method of soil density analysis / A. Moroz ; advisor : S. Filimonov // Black Sea Science 2021 : proc. of the Intern. Competition of Student Scientific Works / Odessa National Academy of Food Technologies ; eds. B. Yegorov, M. Mardar [et al.]. – Odessa: ONAFT, 2021. – P. 528–540 : fig. – Ref.: 13 tit.
Ключові слова
penetrometer, automation, soil density, piezoelectric transducer, modeling