High charge rate
Flip-flop, simultaneous source, code sequences and multilevel sources support
Power supplies MultiJack provide operation of electrosparking and electrodynamic sources of various type that are used in geophysical surveys in the water area with continuous seismoacoustic profiling (СSP), high-resolution (HR) or super-ultra-high-resolution / super-high-resolution (SUHR / SHR) and other seismic methods. In addition to supporting the standard mode of operation with a single source, MultiJack power supplies allow customers to work in an array for successful fulfilment of the latest technologies:
Multisource (or Simultaneous Source)
The use of multilevel sources allows to achieve a certain source directivity, to control the spectral composition of the generated signal and to modify the pulse shape (the source signature). The application of multilevel sources in conjunction with impulse-code sequences makes it possible to use a ghost wave as a source of useful signal. The use of code sequences also makes it possible to work with amplitudes of generated signals that are much smaller than the source signals amplitudes in a standard seismic survey with a single excitation of the signal at each shot point. At the same time, the total energy of the recorded signal is preserved without loss in data quality.
Deploying the simultaneous source (or multi-shooting) technology allows to get a number of significant advantages in comparison with use of single sources:
An important feature of MultiJack system when working in an array is its exceptional simplicity - all units are controlled by a single MultiJackPad remote control that allows to configure the operating mode of each power supply including determining the interval between shots and their energy, indicating the constant and accidental response delays, generating code sequences, charge rate adjustment (power consumption) and testing of the entire system or each individual unit. In addition, MultiJack power supplies are balanced by the maximum pulse energy and charge rate so that it is guaranteed to provide standard observation steps at a typical vessel speed of 3-5 knots.
The standard set of MultiJack power supply consists of:
Sync connector (2 pc.)
Universal switching module for connecting the source
In addition to MultiJack power supplies the following items can be purchased:
MultiJackPad remote control
Spare parts kit
As may be agreed, it is possible to manufacture a power supply and a source of the required power and configuration. For the correct preparation of technical design specification, please contact us using any method indicated on the website.
|Operating voltage, kV||2-4|
|Type of charger||impulse|
|Support of survey technologies||Standard, flip-flop, simultaneous Source, coded and multilevel source|
|Operating energy, J||50-500||300-1250||300-2500||300-5000||300-10000||300-25000||300-50000|
|Charge rate, kJ/s||1500||1500||3000||6000||12000||12000||12000|
|Minimum period of operation at the minimum pulse energy, s||0.3||0.6||0.4||0.3||0.2||0.2||0.2|
|Minimum period of operation at the maximum pulse energy, s||0.5||1||1||1||1||2.3||4.5|
|Minimum distance between shot points when pulse power is maximum and vessel speed is 4-5 knots, m||0.8-1.3||1.5-2.6||1.5-2.6||1.5-2.6||1.5-2.6||3.5-5.9||6.9-11.6|
|Parameters of mains||110 or 220 V, 50 Hz||380 V, 50 Hz|
|Power consumption, kW||1/2/3||1/2/3||1/2/3/4/5/6||12||1|
|Overall dimensions, sm||54×41×27||58×56×50||58×59×69||depends of customization|
|Weight, kg||20||26||74||99||depends of customization|
|Purpose of use||remote control of MultiJack|
|Maximum length of communication line, m||100|
|Overall dimensions, sm||24×19.8×10.9|
The manufacturer reserves the right to make changes in the design of devices that do not significantly alter the functional characteristics of the product.