@article{acbb2961b67f4f91a1997bc0168b8f64,
title = "A Low-Cost Intensity Probe",
abstract = "Unlike ordinary microphones, a sound intensity probe measures the energy flow as a vector direction. It can be computed as the product of scalar pressure and vector velocity. In a conventional probe, velocity is computed as the difference in pressure at a small fixed distance. The authors propose a novel means of directly measuring velocity using the temperature difference between two heated wires mounted in a microminiaturized substrate. When combined with a standard pressure sensor, the probe measures sound intensity over the full spectrum at a single point in space. The paper provides examples of several methods for calibration of the particle velocity sensor used, such as in a standing-wave tube, reverberant room, anechoic space, and reverberation room. Two examples of sound-intensity measurements are provided and are compared with a conventional sound intensity probe.",
author = "R. Raangs and W.F. Druyvesteyn and {de Bree}, H.E.",
year = "2003",
language = "English",
volume = "51",
pages = "344--357",
journal = "Journal of the Audio Engineering Society",
issn = "0004-7554",
publisher = "Audio Engineering Society",
number = "5",
}