Dura-Spark UHD Systems
The Applied Acoustics’ Dura-Spark UHD sub-bottom profiling package is a revolutionary sparker system that combines high quality data capture with improved resolution and hard-wearing sparker tips, to minimise operational downtime.
The system consists of a negative voltage seismic energy source, the CSP-Nv, a sparker sound source with up to 400 long-life tips, connected by a rugged high voltage cable. Designed for high and ultra high resolution geophysical surveys, and for use with single and multi-channel acquisition systems, the system is capable of providing high quality data with vertical resolution of up to 25cms, in water depths from 5 to 1000 metres.
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, if ever, need replacement. The Dura-Spark UHD consists of either 5 or 3 arrays of 80 tips that allow the operator to tune the source from the vessel to its application. This flexibility, together with selectable source depth, allows the sound source to be used in both shallow and deep waters.
The typical operational bandwidth is 300Hz to 1.2kHz and 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.
- Long life, durable electrodes
- Pulse stability
- High resolution sub-bottom data
- Operator selectable source depth
- Tip array selection from on board junction box
- Flip-flop capability
- 101G Mini-Pod GNSS receiver option
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 in both shallow and deep waters 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.
The Delta Sparker is currently the most powerful sparker available in the range and is intended for deeper penetration sub-bottom profiling. Stable under tow, the frame is buoyed and is easily deployed. The design incorporates a simple adjustment for optimum array depth, to achieve the best possible pulse shape.
As a multi-tip sparker array, the Delta can also be used in UHR multi-channel seismic surveys utilising 24 or 48 channel streamers such as during geohazard assessment, construction projects or shallow target 2D exploration.
To make transportation easier, the frame of the Delta Sparker can be split into two shorter lengths.
- 1000 – 12,000 Joule Sparker compatible with the CSP-Dv 2400 and CSP-S energy sources (and older CSP designs)
- 2.5 metre triangular tow frame, supplied with buoys
- Facility to adjust tow depth
- Modular construction
- Replaceable electrodes for easy field maintenance