Open AccessContactless diagnostics of the technical state of the valve mechanism of the internal combustion engine
Author(s) -
Віктор Войтов,
Ю.В. Чепурний,
А.В. Статигін
Publication year - 2020
Publication title -
sistemi ozbroênnâ ì vìjsʹkova tehnìka
Language(s) - English
Resource type - Journals
eISSN - 2518-1580
pISSN - 1997-9568
DOI - 10.30748/soivt.2020.64.06
Subject(s) - microphone , acoustics , accelerometer , mechanism (biology) , vibration , sound pressure , noise (video) , internal combustion engine , frequency spectrum , computer science , engineering , spectrum analyzer , mechanical engineering , physics , telecommunications , quantum mechanics , artificial intelligence , image (mathematics) , operating system
The aim of the study is to analyze the possibilities of developing a contactless diagnostics system of the technical state of the valve mechanism, which excludes mounting sensors on the body of the diagnosed equipment, by using a directional microphone as a sensitive element. In order to test the proposed hypothesis, a directional microphone designed to measure the level of acoustic noise, sound pressure level and to obtain amplitude-frequency characteristics in the range of 10-10 kHz has been used. In the work, an experimental determination of the spectrum of the valve mechanism acoustic vibration and its comparison with the spectrum obtained from an accelerometer has been carried out; the principle of building an automated diagnostic system using a directional microphone has been formulated.