Opto-acoustoelectric device and methods for analyzing...

Details Opto-acoustoelectric device and methods for analyzing... Opto-acoustoelectric device and methods for analyzing...

2006-11-14

2006-11-14

Williams, Hezron (Department: 2856)

Measuring and testing

Vibration

Sensing apparatus

C073S649000, C356S499000

Reexamination Certificate

active

07134343

ABSTRACT:
An opto-acoustoelectric device encompasses a diaphragm having a diffraction grating, the diaphragm is susceptible to a vibration driven by an external force; a light source oriented to irradiate the diffraction grating; and a photo detector configured to detect the light diffracted by the diffraction grating and to convert the detected light into an electric signal. The electric signal corresponds to a displacement of the vibration in the diaphragm.

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