Appointment
The SplitMultiSeis Sparker 400-800 multielectrode electric spark source is included in the SplitMultiSeis 3D receiving-emitting array system and is designed to excite a high-frequency acoustic pulse when performing high-resolution (SVR) and ultra-high/ultra-high (SSVR/SUVR) seismic surveys. The source is mounted on a raft that is resistant to towing. The design of the raft makes it easy to adjust the energy of the acoustic pulse by changing the number of electrodes, as well as deepening the source to coordinate the system. In addition, the design allows you to install the Trimble R9s satellite geodetic equipment for high-precision positioning. The sparker excites mid-frequency oscillations in the range of 400-900 Hz.
The principle of operation of the device
The principle of operation of an electric spark source is based on the conversion of electrical energy into acoustic energy by heating water when an electric current flows through it. The excitation of elastic waves occurs when an electrical breakdown occurs between two electrodes after a rapid application of a sufficiently high voltage from a sufficiently powerful source. The heat released leads to heating, evaporation and partial decomposition of the liquid. As a result, a combined-cycle gas area with high internal pressure arises. The subsequent movement of the walls of the vapor-gas region leads to the appearance in the surrounding space of an intense compression wave with maximum pressure at the wave front of the same order as the internal pressure in the cavity.
Completeness
Towing raft - 1 piece
Buoys - 2 pieces
Sections with electrodes - 8 pieces
Tow cable - 50-100 m
SPTA - 10 sections
A set of tow ropes - 1 piece
Trimble R9s with batteries in a waterproof case - 1 pc
Trimble Rover Zephur 3 Antenna - 1 piece
A set of fastening slings - 1 piece
Technical specifications
Main Features:
- Manufacturer: SPLIT LLC, Russia
- Number of electrodes: 400-800
- The range of values of the total energy: 100 – 5000 J
- Source depth: 0.5 - 2 m
- Frequency range: 400 – 900 Hz (center frequency 500 Hz)
- Weight: 50 kg
- Cable cable up to 100 m
