Sub Bottom Profiler

Sub Bottom Profiler

We provide compact sub bottom profiler for both shallow and deep water from Falmouth Scientific, Inc. which is a global marine solution provider for sub bottom profiler, tide system and other marine application.

HMS-621 CHIRPceiver Litt

Sub-bottom profiling applications in diverse sediments in shallow water environments require compact tools as well as multiple frequency bands to support diverse survey requirements. The HMS-621 CHIRPceiver LittTM and transducer arrays fill this wide range of survey needs. The user selectable frequency bands supported by the HMS-621 include standard LF (1KHz-10KHz), and HF (8KHz-23KHz). It can be easily configured for up to 50Khz with a standard single channel user configurable transceiver. CW frequencies can also be programmed within the respective band. The transducer and hydrophone arrays are configured to perform both the transmit and the receive functions of the system.

The HMS-621 CHIRPceiver Litt uses a flexible Graphical User Interface connected via Ethernet that allows the user to set CHIRP or CW modes of operation, Start and Stop frequencies, and Pulse Lengths and Power Level for the output pulses. The receiver controls allow for Gain and Attenuation as well as Diagnostic modes. All sonar data is logged in SEGY format using industry standard acquisition software such as Chesapeake SonarWiz.

FEATURES/BENEFITS

  • CHIRP acoustic pulses in standard LF band (1KHz-10KHz), and HF (8KHz-23KHz) bands provide bottom penetration through many sediment types
    • Flexible transducer array options for a variety of vessel configurations
    • Industry Standard Ethernet Interface for Data and Control
    • Universal input power supply operates from 85 to 240 VAC
    • 24VDC Operation wih inverter (8-10 Hours with (2) 12V Batteries
    • Single-Channel True 24-bit A/D Range
    • Seabed Classification
    • Industry standard SEGY output
    • Includes FSI acquisition software
    • Compatible with software acquisition software(Hypack, Chesapeake, SwanPro, others)

Falmouth Scientific, Inc.

systems

HMS-12KM CHIRP SUB-BOTTOM PROFILER

Extreme deep water sub-bottom profiling applications (4Km to 12Km) require an array of 16 to 36 low frequency transducers installed in a hull-mounted sea chest. An acoustic window is used to reduce the attenuation of the signal through the vessel hull for improved signal to noise of the system. The HMS-12KM system with the HMS-622 CHIRPceiverTM and hull mounted transducer arrays fills this range of survey requirements. The frequency bands supported by the HMS-12KM include LF (1KHz-10KHz) and HF (8KHz-23KHz) with a standard 2 channel transceiver. CW frequencies can also be programmed within the respective band. The transducer arrays are configured to perform both the transmit and the receive functions of the system. The high frequency channel is primarily used to detect a bottom finding pinger in the deepest water depth, but it is also used for high resolution sub-bottom in shallower areas. The transducers are wired to a junction box containing the SCP-10KM Software Controlled Preamplifier which is collocated with the sea chest. The output of the preamplifier is permanently connected through a shipboard cable to a topside junction box which provides the interface to the HMS-622 CHIRPceiver and workstation.

The HMS-622 CHIRPceiver uses a flexible Graphical User Interface connected via Ethernet that allows the user to
set CHIRP or CW modes of operation, Start and Stop frequencies, Pulse Lengths, and Power Level for the output
pulses. The receiver controls allow for Gain and Attenuation as well as Diagnostic modes. The HMS-622
CHIRPceiver will also support multi-ping modes for higher along track resolution when operating in water depths
deeper than a given ping rate. All sonar data is logged in SEGY format using industry standard acquisition
software.

FEATURES/BENEFITS
• Dual frequency operation with CHIRP acoustic pulses in standard bands; LF (1KHz-10KHz), HF (8KHz-23KHz) provide bottom penetration through many sediment types
• Flexible transducer array options for a variety of vessel configurations
• Remotely programmable low-noise pre-amp with high/low pass filters
• Universal input power supply operates from 85 to 240 VAC
• Industry standard SEGY output
• Multi-ping mode for higher resolution in deeper water depths