E3S Web Conf.
Volume 273, 2021XIV International Scientific and Practical Conference “State and Prospects for the Development of Agribusiness - INTERAGROMASH 2021”
|Number of page(s)||11|
|Published online||22 June 2021|
The results of studying the EMF emergence in friction pairs of power machines
1 Federal State Budgetary Educational Institution of Higher Education «Ulyanovsk State Agrarian University named after P.A. Stolypin», 1, boulevard Novy Venets, 432017, Ulyanovsk, Russia
2 Ulyanovsk State University, 42, Leo Tolstoy St., 432017, Ulyanovsk, Russia
3 Federal State Budgetary Educational Institution of Higher Education «Kazan State Agrarian University», St. Karla Marksa, 65, Republic of Tatarstan, 420015, Kazan, Ruassia
* Corresponding author: firstname.lastname@example.org
The work is devoted to the experimental studies of determining the magnitude of the electromotive force (EMF) that arises in the friction pairs of an internal combustion engine (ICE) and the possibility to assess its technical condition by the magnitude of the electromotive force. A research procedure was designed to carry out an experiment. The measurement of small value voltages was carried out using a control and measuring device, the principle of operation of which is based on operational amplifiers (OA). Based on the previously obtained theoretical values of the EMF, the designed millivoltmeter can make measurements in the range of the following values: from 50 μV to 1 mV and from 1 mV to 40 mV. To ensure the reliability of the readings of the measuring device, its calibration was carried out with the use of an AMPROBE 37XR-A digital multimeter. As a result of the measurements, the relationship between the EMF value and the crankshaft speed of the power plant was established. The analysis of the research results confirms the possibility of diagnostic assessment of the power machine condition by the values of the measured EMF using the proposed measuring complex.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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