Issue №: 2 (129)
The journal solves the problems of creation and improvement of machinery and technologies for agriculture: 131 - Applied Mechanics, 132 - Materials Science, 133 - Industrial Engineering, 141 - Power Engineering, Electrical Engineering and Electromechanics, 208 - Agricultural Engineering.
STUDY OF THE METROLOGICAL CHARACTERISTICS OF A FLOW-TYPE MILK ACIDITY ANALYZER FOR MILKING EQUIPMENT
Elchyn ALIIEV – Doctor of Technical Sciences, Senior Researcher, Professor of the Department of Technical Systems Engineering of Dnipro State Agrarian and Economic University (St. S. Efremova, 25, Dnipro, Ukraine, 49000, e-mail: aliev@meta.ua, https://orcid.org/0000-0003-4006-8803).
Volodymyr GOVORUKHA – Doctor of Physical and Mathematical Sciences, Professor, Head of the Department of Higher Mathematics, Physics and General Engineering Disciplines of Dnipro State Agrarian and Economic University (St. S. Efremova, 25, Dnipro, Ukraine, 49000, e-mail: hovorukha.v.b@dsau.dp.ua, https://orcid.org/0000-0002-0936-9272).
Oleksandr PIVOVAROV – Doctor of Technical Sciences, Professor, Professor of the Department of Food Technologies of Dnipro State Agrarian and Economic University (St. S. Efremova, 25, Dnipro, Ukraine, 49000, e-mail: pivovarov.o.a@dsau.dp.ua, https://orcid.org/0000-0003-0520-171X).
Valentyn YEFIMOV – Candidate of Veterinary Sciences, Associate professor, Associate professor of the Department of Physiology, Biochemistry of Animals and Laboratory Diagnostics of Dnipro State Agrarian and Economic University (St. S. Efremova, 25, Dnipro, Ukraine, 49000, e-mail: yefimov.v.h@dsau.dp.ua, https://orcid.org/0000-0002-4286-8567).
The paper presents the results of a study on the metrological characteristics of a flow-type milk acidity analyzer designed for integration into milking equipment to enable continuous real-time monitoring of raw milk quality. The relevance of this research is driven by the needs of modern livestock farming for the implementation of digital solutions within the framework of the Smart Farming concept. Milk acidity is a key indicator reflecting the microbiological status, freshness, and suitability of milk for processing, and its timely control allows for the prompt detection of hygienic violations during milking or early signs of animal diseases.
The proposed design of the flow analyzer is based on the ionometric method for measuring pH using a glass pH-selective electrode, a reference electrode, and a DS18B20 digital temperature sensor. The measuring unit is built on an ATMega16 microcontroller, integrated with a TL082 operational amplifier, which ensures high-precision measurement of the electrode system potentials. Signal processing and measurement control are implemented via PC software, which also provides electrode calibration, acidity calculation in pH and °T units, and digital and graphical visualization of results.
To determine the metrological characteristics of the analyzer, comparative measurements were carried out using a laboratory-grade pH meter S20 (Mettler Toledo) in buffer solutions with known pH values. It was established that the electrode response is linear with a slope of 59.62 mV/pH (theoretical value – 59.16 mV/pH), the measurement range is 1.68–9.18 pH, the signal dispersion is 3.00 mV², resolution – 0.01 pH, and the signal stabilization time – up to 25 seconds. The average deviation of the results does not exceed ±0.03 pH, which confirms compliance with the requirements for operational acidity monitoring in flow conditions.
The developed analyzer is competitive in terms of key metrological parameters and has strong potential for industrial application. Further research will focus on the implementation of automatic interpretation algorithms based on processing standards, as well as adaptation of the device to farms of various scales.
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About the journal
G8 – Materials Science
G9 – Applied Mechanics
G10 – Metallurgy
G11 – Mechanical Engineering (by specializations)
The journal "Engineering, Energy, Transport AIC" is indexed according to the following databases and catalogs:
The All-Ukrainian scientific journal “Technology, energy, agriculture transport AIC” is an open-access scientific publication that publishes the results of original research, theoretical and applied developments, as well as scientific papers in the fields of engineering sciences, energy systems, and transport technologies of the agro-industrial complex.
The main objective of the scientific journal “Technology, energy, agriculture transport AIC” is to disseminate the results of modern scientific research and to promote the development of technical, energy, and transport solutions for the agro-industrial complex through the publication of scientific materials characterized by scientific novelty and practical significance in the field of design and modernization of machinery, equipment, and technologies.
The journal’s activities are focused on supporting the development of engineering science, stimulating the implementation of innovative approaches into industrial practice, as well as ensuring effective exchange of scientific achievements among researchers, educators, engineers, and other specialists in relevant fields.
Objectives of the Journal
To achieve its defined objective, the journal ensures the implementation of the following key tasks:
· publication of the results of fundamental and applied research covering the fields of applied mechanics, mechanical engineering, materials science, energy systems, electrical engineering, electromechanics, and transport systems of the agro-industrial sector;
· promotion of the implementation of advanced technical and technological developments aimed at improving the efficiency of machinery, equipment, and production processes;
· creation of conditions for active scientific exchange among research institutions, higher education institutions, industrial enterprises, and other interested organizations;
· support for the development of interdisciplinary research and expansion of cooperation among specialists in various fields of science and technology;
· promotion of the improvement of the scientific and technical level of research related to the design, modernization, and operation of technical equipment used in agro-industrial production;
· dissemination of information on modern achievements in science and technology and the implementation of innovative technologies in the fields of technical support, energy, and transport;
· development of a scientific information environment that facilitates effective scientific communication and the integration of national research into the international scientific community.
Publication frequency: 4 issues per year
Languages of publication: Ukrainian, English
Editor-in-Chief: Vitalii YAROPUD
State Registration: Decision of the National Council of Ukraine on Television and Radio Broadcasting № 1337 and № 1180. Media Identifier: R30-05173
EDRPOU Code: 00497236
Publisher ROR: https://ror.org/05m3ysc06
Publisher DOI Prefix: 10.37128
Technology, energy, agriculture transport AIC is a scholarly professional journal with a long-standing history and stable academic tradition, reflecting the evolution of engineering and technical sciences within the agro-industrial sector of Ukraine.
The journal was founded in 1997 under the title Bulletin of Vinnytsia State Agricultural Institute. According to the Resolution of the Presidium of the Higher Attestation Commission of Ukraine dated September 11, 1997, the publication obtained the status of a professional scientific journal, which enabled the publication of the main results of doctoral and candidate dissertations in technical sciences. From its inception, the journal positioned itself as an academic platform for addressing current issues of mechanization, electrification, and technical support of agricultural production. During 2001–2014, the journal was published under the title Proceedings of Vinnytsia National Agrarian University. Series: Technical Sciences (State Registration Certificate of Print Media KV No. 16644-5116 PR dated April 30, 2010). Throughout this period, a systematic approach to the selection and peer review of scientific manuscripts was established, the thematic scope of publications was expanded, and continuity of scientific directions as well as the development of sectoral engineering schools was ensured. Since 2015, the journal has been published under its current title, Technology, energy, agriculture transport AIC (State Registration Certificate No. 21906-11806 R dated March 12, 2016). The change of title reflected the expansion of the journal’s thematic coverage and its orientation toward interdisciplinary research in mechanical engineering, energy systems, electrical engineering, transport technologies, automation, and digital solutions for the agro-industrial complex.
