Patent ID: 9408555
Filing Date: 2016-08-09
CPC Classification: A61B,A61M,G01L,H04R

Claim Text:
1. A microfabricated variable capacitor, comprising: a stator including a plurality of electrically conductive plates each spaced apart from one another, each said pair of adjacent plates forming a channel between, each of said plates being in a first common electrical communication; a rotor including a plurality of electrically conductive blades, said rotor being suspended relative to said stator such that each of said blades is received within a corresponding one of said channels and each said blade includes an area that overlaps with an area of an adjacent said plate, each of said blades being in a second common electrical communication; a flexible diaphragm; and a suspension system for flexibly coupling said rotor and said diaphragm, said system configured and adapted to apply a load from the diaphragm to the stator in one direction and unable to substantially apply a load from the diaphragm to the stator in another direction; wherein the capacitance between the first electrical communication and the second electrical communication varies in correspondence to the overlapping areas between each said blade and an adjacent plate.