Open AccessMethods of Testing of Sound Insulation Properties of Barriers Intended for High Frequency Noise and Ultrasonic Noise Protection
Author(s) -
Dariusz Pleban,
Witold Mikulski
Publication year - 2018
Publication title -
strojnícky časopis/journal of mechanical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.276
H-Index - 8
eISSN - 2450-5471
pISSN - 0039-2472
DOI - 10.2478/scjme-2018-0047
Subject(s) - soundproofing , acoustics , reverberation , noise (video) , ultrasonic sensor , audio frequency , range (aeronautics) , infrasound , ultrasonic testing , materials science , computer science , sound pressure , physics , composite material , artificial intelligence , image (mathematics)
Two test stands for determining sound insulation in the frequency range above 5 kHz were made. One consisted of two horizontally adjacent reverberation rooms and a special source of high frequency sounds and ultrasounds. The other test stand consisted of a miniaturized test chamber and a special source of ultrasounds. The paper presents results of the preliminary measurements of sound insulation properties of different barriers in the frequency range above 5 kHz.