Mechanically coupled helmholtz resonators for broadband acoustic

Details Mechanically coupled helmholtz resonators for broadband acoustic Mechanically coupled helmholtz resonators for broadband acoustic

1999-02-18

2000-05-30

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Sonar counter-measures

181207, G10K 1100, F16F 1500

Patent

active

060698403

ABSTRACT:
A plurality of Helmholtz resonators with varying physical characteristics are mechanically coupled within a structure to drastically reduced acoustic transmission through the structure or along a pipe. These mechanically coupled resonator structures produce much flatter broadband acoustic attenuation than uncoupled resonators.

REFERENCES:
patent: 3850261 (1974-11-01), Hehmann et al.
patent: 4298090 (1981-11-01), Chapman
patent: 5103931 (1992-04-01), Okazaki et al.

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