Free Flooded Ring (FFR) transducers are broadband transducers with unlimited depth capability and a toroidal beam pattern.
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SPHERICAL TRANSDUCERS
High-frequency sound source and receiver
GeoSpectrum’s spherical transducers are suitable for a variety of applications, including active/passive sonar, marine mammal detection (MMD), acoustic data transmission, and subsea communications.
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BENDERS
Low-frequency sound projector
GeoSpectrum’s M21 benders, or flexural disk transducers, are highly versatile underwater acoustic projectors that produce moderate power over a broad band and high power near resonance.
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HYDROPHONES
Omni-directional wide-band sensing
GeoSpectrum designs and manufactures a variety of wide-band omnidirectional hydrophones which include an integral low-power, low-noise, voltage- or current-signalling preamplifier.
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C-BASS
Very low frequency
C-BASS is a novel family of very low frequency (VLF) electrodynamic sound projectors.
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PARTICLE MOTION SENSOR
Low frequency particle motion sensing
The M20 family is a group of sensors which measure particle motion with high sensitivity and good directivity down to very low frequencies.
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M351 FIELD CALIBRATOR
Battery-operated precision hydrophone field calibrator
The M351 is intended to calibrate GTI hydrophones, or can be supplied with a custom interface to support hydrophones from other suppliers.
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PORTABLE ACOUSTIC CALIBRATION SYSTEM
Highly accurate, easy-to-use testing system for sound source calibration
PACS is an easy-to-use system allowing the user to perform a variety of tests for sound source calibration. Due to its portability, PACS can be used from vessels of opportunity in various size bodies of water, or in-house test tank setups.
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