Performance Analysis of Cost-Effective Miniature Microphone Sound Intensity 2D Probe.

This article presents the functional properties of modified versions of the 2D pressure-pressure intensity probe allowing us to determine the vector of sound intensity on a plane using a mechatronic system with one or two miniature electret microphones. The introduction contains basic information about the application areas of the sound intensity and its measurement problems. Next, the principle of operation of the probes and the construction of the prototype measurement system are described.