Electret transducer
OwnerRobert B. McIntoshinventor
Life of this patent
Estimating the term…
Abstract
A transducer with at least one variable-area capacitor comprising a flexible electrode with a surface facing a surface of a cooperating rigid electrode and an electret affixed to a portion of one of said surfaces, wherein said surface of said rigid electrode has a contoured region selected to increase a region of substantially fixed capacitance spacing as said flexible electrode deflects in response to an applied stress.
Claims11
A transducer with at least one variable-area capacitor comprising a flexible electrode with a surface facing a surface of a cooperating rigid electrode and an electret affixed to a portion of one of said surfaces, wherein said surface of said rigid electrode has a contoured region selected to increase a region of substantially fixed capacitance spacing as said flexible electrode deflects in response to an applied stress.
A variable-area capacitor with cooperating electrodes and an electret affixed to a portion of one of said cooperating electrodes, said cooperating electrodes comprising a flexible electrode and a rigid electrode with a surface contoured region facing a principal surface of said flexible electrode.
Dependencies are inferred from the claim text.