Underwater acoustic characterization of electret hydrophone with speaker as sound source

  • Daniella Torres Hernandez National Institute of Physics, University of the Philippines Diliman
  • Giovanni A Tapang National Institute of Physics, University of the Philippines Diliman

Abstract

In this paper, we fabricated a hydrophone using electret microphone and an underwater speaker and characterized acoustically in air and in water. Fabricated electret hydrophone is connected to a pre-amplifier and audio amplifier and speaker transmits amplified sine wave from a signal generator. Preliminary characterization results were presented. Frequency response and SNR vs. Frequency plots show that hydrophone’s responsive bandwidth is from 500 Hz to 100kHz, in water and 480Hz to 100kHz in air.

Published
2020-09-13
How to Cite
[1]
D. Hernandez and G. Tapang. Underwater acoustic characterization of electret hydrophone with speaker as sound source, Proceedings of the Samahang Pisika ng Pilipinas 38, SPP-2020-3D-04 (2020). URL: https://paperview.spp-online.org/proceedings/article/view/SPP-2020-3D-04.
Section
3D Instrumentation, Imaging, and Signal Processing (Short Presentations)