Influence of membrane surface shape change on the performance characteristics of a fiber optic microphone.

  title={Influence of membrane surface shape change on the performance characteristics of a fiber optic microphone.},
  author={R. Li and N. Madamopoulos and Wen Xiao},
  journal={Applied optics},
  volume={49 35},
  • R. Li, N. Madamopoulos, Wen Xiao
  • Published 2010
  • Physics, Medicine
  • Applied optics
  • At a reflective intensity modulated fiber optic microphone (RIM-FOM), the acoustic signal makes a membrane vibrate and modulate the reflected intensity. In the existing models of the RIM-FOM, the offset of all points of the membrane, due to the vibration, is assumed to be equal. However, this assumption does not represent the actual vibration of the membrane, which follows a continuous surface shape change caused by the acoustic signal. We establish a revised theoretical model in which the… CONTINUE READING
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