Method for adjusting a Helmholtz resonator and an adjustable Helmholtz resonator
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United States of America Patent
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Jun 26, 2012
Grant Date -
Jun 16, 2011
app pub date -
Feb 8, 2011
filing date -
Aug 14, 2008
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Abstract
In a method for adjusting a Helmholtz resonator (10), in which a resonator volume (11) is connected to a space (13) to be provided with damping along an axis (29) via a constriction (12) having an acoustic impedance, the acoustic impedance of the constriction (12) is altered in order to adjust the Helmholtz resonator (10).
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