3D sound intensity measurements
Measuring the 3D intensity vector can be useful. In a factory where machinery noises can be a risk of hearing damage it is important to detect the sources of this noise and reduce them. This can be done by measuring the sound intensity around machines and other sound sources such that we can determine which source emits most sound power and has the highest contribution to the noise.
Furthermore, 3D sound intensity measurements are also very useful in locating these sources as it is not always obvious where the sound is coming from.