ACOUSTIC TRANSDUCER WITH VIBRATION DAMPING
First Claim
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1. An acoustic transducer, comprising:
- a diaphragm made of a first material having a central area, an outer perimeter, a center of mass, and an axis of symmetry;
at least one tinsel coupled to the diaphragm on one side of the axis of symmetry; and
at least one elongated opening in the diaphragm extending substantially radially along a portion of a length from the central area to the outer perimeter and positioned, at least in part, on the opposite side of the axis of symmetry as the at least one tinsel, such that the center of mass lies on or near the axis of symmetry.
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Abstract
Circumferential mode vibrations, in a diaphragm of an acoustic transducer, are damped by defining at least one elongated opening extending radially along a portion of a length from the central area to the outer perimeter being covered by a material having higher damping properties than the material of the cone.
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Citations
7 Claims
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1. An acoustic transducer, comprising:
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a diaphragm made of a first material having a central area, an outer perimeter, a center of mass, and an axis of symmetry; at least one tinsel coupled to the diaphragm on one side of the axis of symmetry; and at least one elongated opening in the diaphragm extending substantially radially along a portion of a length from the central area to the outer perimeter and positioned, at least in part, on the opposite side of the axis of symmetry as the at least one tinsel, such that the center of mass lies on or near the axis of symmetry. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification