Appointment

The 19-channel receiver (seismic streamer) is designed to receive and amplify seismic signals during marine seismic and acoustic studies using electric spark (sparker) or electrodynamic (boomer) seismic sources. The streamer can be used in geological and engineering-geological surveys in seas, rivers, lakes and reservoirs.

The principle of operation of the device

The towed seismic streamer SplitMultiSeis streamer is designed to receive and amplify seismic vibrations and transmit them to a seismic station located on a geophysical vessel. When conducting seismic surveys at sea (rivers), piezoelectric seismic receivers (hydrophones) are used, in which the excess pressure in the water associated with the arrival of a seismic wave is converted into an electrical signal. The sensing element is piezoceramics, with contacts for transmitting an electrical signal. The seismic receivers are placed in a neutral buoyancy receiving device – a marine seismic streamer, which is a polyurethane hose filled with a light liquid.

Completeness

Seismic streamer - 1 piece

Tow cable - 100 m

Technical specifications

• Number of channels - 16 main channels, 3 additional channels
• Type of seismic receiver - SQ-05
• The sensitivity of the seismic receiver is 8 Volts/bar
• The capacity of the seismic receiver is 950 pF
• Preamp gain - K=10 – main channels, K=2 - additional channels
• The frequency range of the preamplifier is 50 Hz -2500 Hz
• The steepness of the high-frequency preamplifier is 6 dB/oct
• The steepness of the low-pass preamp is 20 dB/oct
• The distance between the channels is 2 m
• The distance from the first (last) channel to the beginning (end) of the hose is 3 m
• The total length of the braid is 36 m
• The length of the tow cable is 130 m
• The diameter of the tow cable is 13 mm
• The breaking force of the cable is 300 kg
• The outer diameter of the braid is 22 mm .
• The hose material is polyurethane
• Filler - Liquid paraffin
• The number of hydrostatic pressure sensors is 3
• Pressure sensor interface - RS-422
• The transmission rate from pressure sensors is 115200 bps
• Current consumption - + 12 V: 230 mA; -12 V:100 mA