Hi. Splitting hairs here...
On both sides of the backing plate (shown dotted/perforated) , air pressure is the same, as it is a vented element in a MEMS microphone.
But on both styles of construction shown/linked below, there is a chamber with no venting to ambient (The one not having the sound hole).
----> https://www.researchgate.net/profil...wire-bonding-Top-sound-port-in-lid-Bottom.png
Does it mean that on board of an aircraft, pressure dropping at altitude, the diaphragm can deform into rupture and leave the pilot with no microphone ?
On both sides of the backing plate (shown dotted/perforated) , air pressure is the same, as it is a vented element in a MEMS microphone.
But on both styles of construction shown/linked below, there is a chamber with no venting to ambient (The one not having the sound hole).
----> https://www.researchgate.net/profil...wire-bonding-Top-sound-port-in-lid-Bottom.png
Does it mean that on board of an aircraft, pressure dropping at altitude, the diaphragm can deform into rupture and leave the pilot with no microphone ?