5.3. Combination of pressure and pressure-gradient microphones
A combination of pressure and pressure-gradient microphones is one that responds to both the pressure and the pressure gradient in a wave. A common example of such a microphone is the one having a cavity at the back side of the diaphragm that has an opening to the outside air containing an acoustic resistance (see Fig. 5.7a).
Get Acoustics: Sound Fields, Transducers and Vibration, 2nd Edition now with O’Reilly online learning.
O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.