Capacitor microphone
First Claim
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1. A capacitor microphone comprising:
- a microphone housing;
a first membrane located within said microphone housing, said first membrane having a sound inlet opening;
a backplate electrode associated with said first membrane and spaced therefrom at a small distance;
a membrane ring having first and second sides, on the first side of which said first membrane is located; and
a second membrane positioned on the second side of the membrane ring, said second membrane having no means for pressure equalization.
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Abstract
The invention relates to a capacitor microphone having a housing, a first membrane, a backplate electrode associated with this membrane, and an opening through which sound can reach the membrane. It is therefore the task of the invention to provide an effective protection against sweat penetration into the microphone, thus overcoming prior art disadvantages and problems.
12 Citations
16 Claims
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1. A capacitor microphone comprising:
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a microphone housing; a first membrane located within said microphone housing, said first membrane having a sound inlet opening; a backplate electrode associated with said first membrane and spaced therefrom at a small distance; a membrane ring having first and second sides, on the first side of which said first membrane is located; and a second membrane positioned on the second side of the membrane ring, said second membrane having no means for pressure equalization. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification