May 2017

Mini Piezoelectric Sonar

​For this project we wanted to create sonar with the use of three different piezoelectric crystals of different geometrics (circle, cube, and rectangular plate). We needed to find a way to waterproof and insulate the piezooelectric buzzers. To proceed with our experiment, we sent an electrical pulse at different frequencies through a piezo buzzer underwater, and were able to read the signal through another crystal underwater with an oscilloscope. We tested each crystal and collected data from running tests at multiple distances. Finally, we analyzed and plotted our data and presented our findings to classmates.

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Scope

• Research the development of piezoelectric crystals and how they were implemented in sonar

• Fabricat miniature piezoelectric sonar and record data using an oscilloscope and frequency generator

• Organiz data using Microsoft Excel

• Plot on graph

• Present project 

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