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Applied Acoustics Dura-Spark UHD and UHD 400+400

Sparker seismic sound sources - single (40/200/240/400 tips) and double deck options

The Dura-Spark UHD and UHD 400+400 have been designed to provide a stable, repeatable sound source for sub-bottom geophysical surveys. The long-life, durable electrodes produce a consistent pulse signature and keep operational maintenance to a minimum. This provides increased survey efficiency and equipment reliability as the sparker tips rarely need replacement.

  • Applied Acoustics Dura-Spark UHD and UHD 400+400
Applied Acoustics
Gapton Hall Road
NR31 ONB Great Yarmouth
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Description

The Dura-Spark UHD has been designed to provide a stable, repeatable sound source for sub-bottom geophysical surveys. The long life, durable electrodes produce a consistent pulse signature and keep operational maintenance to a minimum. This provides increased survey efficiency and equipment reliability as the sparker tips rarely need replacement.

The single deck Dura-Spark consists of 3 or 5 arrays of 80 tips allowing the operator to tune the source from the vessel to their application. This flexibility together with selectable source depth allows the source to be used in both shallow and deep waters. The typical operational bandwidth of the Dura-Spark UHD  is 300Hz to 1.2kHz. When coupled with the CSP-Nv Seismic Power Supply the system offers 2000J/s peak discharge rate, as well as industry leading design and safety standards.

Newly introduced the Dura-Spark UHD 400+400 consists of 2 decks of 400 tips that allow the operator to tune the source from the vessel to its application. Each deck can be fired independently by its seismic power supply, in flip flop mode, combined with fire delays or a split fire delay. Utilising the fire delay functionality the signatures from the 2 decks can be combined to bubble form the sound source signature. This flexibility, together with selectable source depth, allows the sound source to be used  for multiple seismic data gathering applications.

The typical operational bandwidth of the Dura-Spark UHD 400+400 is 300Hz to 1.2kHz. When coupled with the CSP-SNv Seismic Power Supply the system offers 4000J/s peak discharge rate, as well as industry leading design and safety standards.

Specifications

  • Product type
    Sparker, Sub-Bottom Profiling System
  • Year of initial development
    2018
  • Application
    High Resolution
  • Max power consumption [W]
    5000
  • Power type
    AC
  • Transducer weight [kg]
    130
  • Transducer length [m]
    1.8
  • Transducer width [m]
    0.66
  • Transducer height [m]
    0.49
  • Components to be used in combination with product
    CSP-Nv power supply + AH Series hydrophones, 400+400 CSP-Nv1250 power supply
  • Portability of logger
    Desktop, Portable, Rack
  • Platform type
    Surface Towed
  • Operating System
    Windows
  • Min. depth of operation [m]
    5
  • Max. depth of operation [m]
    1
  • Min. frequency [Hz]
    250
  • Max. frequency [Hz]
    1.5
  • Signal composition
    Broadband
  • Power output [W]
    2400
  • Max. resolution [m]
    0.25
  • Max. penetration [m]
    500
  • Max. pulse rate [Hz]
    3
  • Max. pulse length [s]
    0.0005
  • Dynamic range [dB]
    226
  • Frequency
  • Data displayed
    Third party data acquisition system dependent
  • Main use
    High and ultra-high resolution geophysical surveys, cable/pipeline/route surveys, geohazard survey, pre/post dredging, construction site survey (eg windfarm site) etc.
  • Data output
    Third party data acquisition dependent
  • Formats
    SEG-Y
  • Connections
  • Internal logging
  • Remote operation
    Y
  • Real time coupling to survey software
    Y
  • Coupling to post-processing software
    Y

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