Falmouth Scientific, Inc. (FSI), a Cataumet, MA, USA based designer and manufacturer of precision oceanographic instrumentation and systems, continues to grow their Sub-Bottom product line with the addition of the new HMS-AT650 Compact ULF Sub-Bottom Profiling System. It is ideal for applications that require high resolution CHIRP sub-bottom images along with deeper penetration in difficult sediments such as hard-packed sand.

The new Compact ULF System generates CHIRP signals in the 200 Hz to 2 kHz frequency range and is suitable for operation in a variety of array configurations to support many different shallow water sub-bottom profiling applications. It fills the application space between FSI’s Bubble Gun10-2FSI-Subbottom-Transducers Family of Portable Seismic Systems and the rest of FSI’s CHIRPceiverTM compatible transducer offerings (see graphic below).

Sub-bottom transducers. Credit FSI

Components of the ULF System include a standard single or dual frequency CHIRPceiverTM, a dedicated ULF Matching Driver, the HMS-AT650 transducer, and a specialized hydrophone streamer. The transducer can be either mounted on a rigid support or towed behind a small vessel using the optional vehicle shown in the photo.

Falmouth Scientific offers other sensor-based products such the PLUS Family of current, wave, and tide meters and other acoustics-based underwater instrumentation. Service areas include custom design, development, integration, and production of marine systems and acoustic transducers.

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