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HMS-620 Bubble Gun

Portable Low-Frequency Acoustic Seismic Sub-Bottom Systems

Low-frequency acoustic signals provide superior sub-bottom signal penetration vertically through coarse sand, gravel tills, and other difficult-to-penetrate sediments.

Small component size, portability, and low power requirements make this a valuable tool for any survey platform

Multiple Sources can be synchronized to a common trigger without need for external timing control

Repeatable Shot-to-Shot Phase and Amplitude Wavelet Correlation > 0.96

Description

Available in Single Source, Dual Source, or Low Frequency Source configurations

Typical Applications:

  • Shallow Gas Hazard Surveys
  • Transition Zone Surveys
  • Offshore Wind Turbine and Dam Site Surveys
  • Bedrock Investigation
  • Cross-River Surveys for Bridge Construction
  • Pipeline and Construction Surveys
  • Geotechnical Site Investigation
  • Coastal Engineering
  • Ability to correlate seismic data with land based surveys

Features/Benefits

  • Wide-band 70-1700 Hz (standard) or 20-1700 Hz (LF) pulses provide sub-bottom penetration through many sediment types
  • Rugged, lightweight transducer platform provides stable operation in adverse sea-state conditions
  • Repeatable Shot-to-Shot Phase and Amplitude Wavelet Correlation > 0.96
  • Flexible portable transceiver unit optimizes system for a wide range of sediments
    • User-selectable trigger or external trigger
    • Multiple Sources can be synchronized to a common trigger without need for external timing control
    • Low-noise pre-amp with high/low pass filters and gain control
  • Portable power supply operates from 110 or 220 VAC of less than 1 KWatt for single, 2 KWatt for dual or LF
    • NO HIGH VOLTAGE SOURCE NEEDED
  • Air Cavity is Totally Sealed
    • NO AIR COMPRESSOR NEEDED
  • Oil-filled hydrophone streamer cable incorporates a 7-meter multi-element active section (35-meter deactivation switch)
  • Single, Dual, or LF Transducer Systems

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