Apparatus and method for measuring the acoustic properties...

Measuring and testing – Vibration – By mechanical waves

Reexamination Certificate

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C073S579000, C073S602000, C381S058000

Reexamination Certificate

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06925880

ABSTRACT:
Apparatus and method of measuring acoustic properties of a drumhead of a drum are disclosed. The acoustic properties are measured by exciting the drumhead with a source of energy and detecting the acoustic energy emitted by the drumhead. The acoustic energy emitted by the drumhead may be measured using a microphone or other acoustic sensor. The use of multiple energy sources provides isolation of acoustic energy and allows measurement of local resonance of the drumhead.

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