Call: 954.566.0620

Welcome to! Sonographics, Inc. is a Marine Geophysical Services company specializing in oceanographic surveys. Owned and operated by Rick Horgan, a pioneer in the sonar industry for over 30 years, Sonographics provides a variety of oceanographic services, as well as Marine Mammal Observer (MMO) services, to clients throughout the globe. In addition to performing sonar searches, sub-bottom profiling, side-scan surveys, and magnetometer surveys, Sonographics also has sonar equipment available for lease and currently has an Edgetech 424 Sub-bottom Profiler System available for purchase.

For detailed information on available equipment, please click the sonar system icon below.

For a quote on leasing equipment, please click here and give a brief description of your planned application.



Side-scan Surveys:

Side-scan sonar is used to generate an image of the sea floor. Side-scan surveys are a method of underwater imaging using narrow beams of acoustic energy (sound) transmitted out to the side of the towfish and across the bottom. Sound is reflected back from the seafloor to the towfish. The towfish generates pulses of energy at a time and measures the intensityof the sound reflected back. Soft objects reflect more energy causing a lighter signal on the image, hard objects that do not reflect energy as well show up as darker signals. The absence of sound, such as shadows behind objects, show up as very dark areas on a sonar image. For more information on the EdgeTech 4125, or the EdgeTech 4200-FS, click here.


Sub-bottom Profiling:

Sub-bottom profiling systems are used to measure the sediment layers that lie beneath the hydrosphere. The sub-bottom profiler emits a signal straight down into the water, penetrating the seafloor. A receiver monitors the signal that is reflected. The density of the material that makes up the seafloor affects the rate at which sound travels through it and is reflected back. The system interprets the sound energy reflected to create a profile of what lies beeneath the seafloor. For more information on the EdgeTech 512i, the EdgeTech 216, or the EdgeTech 424, click here.


Magnetometer Surveys:

This method works on the premise that the world has a relatively static magnetic field, and cultural (and some natural) forces interrupt that field. Magnetometer surveys measure the irregularities in the magnetic field in a given area. The variations in the earth's magnetic field are measured by the magnetometer's marine sensor. Magnetometers can be used to detect buried ferrous metal objects (tanks or drums) or bedrock features with contrasting magnetite content. Detection depends on the amount of magnetic material present and its distance from the sensor. For more information on the Geometrics 882 Magnetometer, click here.

Call: 954.566.0620