User Constructed Sonar Equipment. Presented to PSUBS Convention 2004. Sonar Principles. Basic Concepts Transducers Ping generation Ping reception Post-ping processing Construction and testing. Sonar Principles. Basic Concepts Transducers Ping generation Ping reception
PSUBS Convention 2004
Roughly Related to frequency squared
Signal scatters use to foreign materials in the water
Voltage Creates DW
DW Generates Voltage
DW = Change in Thickness
Helps Eliminate Lateral Resonance Modes
Showing Conductive Coating
Channel Industries, Inc.
Wide or Narrow Cone
Little Choice of Resonate Frequencies
Unknown Piezoelectric Material Used
Unknown Electrical Properties of MaterialFish Finder Transducers
Cylinder Thru Hull
Thru Hull Bronze
Thru Hull Plastic
Trolling Motor Mount
Stepper Motor Driver Board
Gray Cylinder Contains Stepping Motor Drive System
Louisiana State University – Shreveport Pool
Yes it is a desktop!
 Sidney Borowitz and Arthur Beiser, “Essentials of Physics”, Addison Wesley Publishing, 1971.
 Keramos Advanced Piezoelectrics
 “Piezoelectric Ceramics”, EDO Corporation.
 “Piezoelectric Ceramics”, Channel Industries, Inc.
 Lowrance Electronics, Inc.