Capacitive transducer
View Patent ↗An improved capacitive transducer includes a metal disc comprising a plurality of channels milled onto the surface of the metal disc. The improved capacitive transducer includes a diaphragm membrane tensioned parallel to the metal disc, the diaphragm membrane at a distance to the metal disc.
1 . An improved capacitive transducer comprising:
a metal disc comprising a plurality of channels milled onto a surface of the metal disc, wherein a first surface of the metal disc between a first and a second of the plurality of channels has a first height and wherein a second surface of the metal disc between a third and a fourth of the plurality of channels has a second height; and
a diaphragm membrane tensioned parallel to the metal disc, the diaphragm membrane at a distance to the metal disc.
2 . The improved capacitive transducer of claim 1 , wherein a first of the plurality of channels is radially symmetric to a second of the plurality of channels.
3 . The improved capacitive transducer of claim 1 , wherein the metal disc comprises a plurality of channels milled onto the surface of the metal disc as rings.
4 . The improved capacitive transducer of claim 1 , wherein the metal disc comprises a plurality of channels milled onto the surface of the metal disc as closed-sided Euclidean shapes.
5 . The improved capacitive transducer of claim 1 , wherein the metal disc comprises a plurality of channels milled onto the surface of the metal disc as concentric channels.
6 . The improved capacitive transducer of claim 1 , wherein the metal disc comprises a plurality of channels milled onto the surface of the metal disc as concentric channels and at least one through hole angled along an axial dimension.
7 . The improved capacitive transducer of claim 1 , wherein the diaphragm membrane acts on a first of the plurality of channels in a first manner and wherein the diaphragm membrane acts on a second of the plurality of channels in a second manner.
8 . The improved capacitive transducer of claim 1 , wherein the metal disc has a convex profile to the diaphragm membrane.
9 . An improved capacitive transducer comprising:
a metal disc comprising a channel milled onto a surface of the metal disc, wherein a first surface of the metal disc between a first and a second of the plurality of channels has a first height and wherein a second surface of the metal disc between a third and a fourth of the plurality of channels has a second height; and
a diaphragm membrane tensioned parallel to the metal disc, the diaphragm membrane at a distance to the metal disc.
10 . The improved capacitive transducer of claim 9 , wherein the metal disc further comprises a ring milled onto the surface of the metal disc.
11 . The improved capacitive transducer of claim 9 , wherein the metal disc further comprises a closed-sided Euclidean shape milled onto the surface of the metal disc.