Measuring acoustic properties of materials with a microflown sensor

Abstract

The issue of noise as an aggravating factor is often a topic to be discussed. This is a consequence of the growth of the human population, coupled with economic growth and the intensive use of sound-generating devices (noise). The paper deals with the use of the Microflown acoustic sensor to research the acoustic properties of materials both indoors and outdoors. It uses its ability to measure reflectivity, absorption or acoustic impedance over a few minutes, broadband, perpendicular to material or at any angle. The practical use of Microflown technology is presented in the measurement of the sound absorption coefficient of materials.