Hybrid supported acoustic membrane assembly
AssigneeW. L. Gore & Associates, Inc.
InventorsSeong Woo Lee, Jason Manthey
Life of this patent
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Abstract
An assembly (10) includes a first support member (15) having a plurality of first apertures (50); a second support member (20) having a plurality of second apertures (55); and a polymer membrane (25) disposed between the first support member (15) and the second support member (20). The polymer membrane (25) is spaced from the first support member (15) by a first distance (30) and from the second support member (20) by a second distance (35). Each of the first distance or the second distance is from 10 μm to 100 μm. The assembly provides a standard deviation of insertion loss of 0.8 dB or less over a frequency range of 200 Hz to 10,000 Hz after a water entry pressure (WEP) test.
Claims18
An assembly, comprising:
- a first support member having a plurality of first apertures;
- wherein the first support member has a percentage open area that ranges from 10% to 40%;
- a second support member having a plurality of second apertures;
- a polymer membrane disposed between the first support member and the second support member;
- wherein the polymer membrane is spaced from the first support member by a first distance and is spaced from the second support member by a second distance;
- wherein the first distance is from 10 μm to 100 μm;
- and
- wherein the second distance is from 10 μm to 100 μm;
- wherein the assembly is configured to provide a standard deviation of insertion loss of between 0.05 and 0.3 dB over a frequency range of 200 Hz to 10,000 Hz after a water entry pressure (WEP) test.
An assembly, comprising:
- an acoustic device;
- a first support member having a plurality of first apertures;
- wherein the first support member has a percentage open area that ranges from 10% to 40%;
- a second support member having a plurality of second apertures;
- and
- a polymer membrane disposed between the first support member and the second support member;
- wherein the polymer membrane is spaced from the first support member by a first distance and is spaced from the second support member by a second distance;
- wherein the first distance is from 10 μm to 100 μm;
- and
- wherein the second distance is from 10 μm to 100 μm;
- and
- wherein the assembly is configured to provide a standard deviation of insertion loss of between 0.05 and 0.3 dB over a frequency range of 200 Hz to 10,000 Hz after a water entry pressure (WEP) test.
Dependencies are inferred from the claim text.