ELLISS-3 is a lightweight mobile system designed to perform near surface seismic refraction/reflection profiling, cross hole seismic survey, vertical seismic profiling and MASW. Number of channels is determined by the customer and can be increased up to 96 active channels. Shockproof case, connectors of high quality and a modification with built-in control laptop allows surveying in all-weather conditions. ELLISS-3 provides full control of measuring equipment (including seismograph itself, cable system and geophones). The system is compatible with any sources: “drop weight”, “sledgehammer”, “single-shot source”, “Geoton”, “Yenisei” etc.
Seismograph can be supplied with wired/wireless synchronizer. As a source trigger sensor a special high-frequency accelerometer is used.
|Number of channels||1-96|
|Instantaneous dynamic range||120 dB|
|Gain||0; 12; 24; 36; 48 dB|
|Sampling period||0.0125; 0.05; 0.125; 0.25, 0.5; 1; 2; 4 ms|
|Maximum record length||8192 readings|
|Maximum signal amplitude at minimum gain||±2.5 V|
|Inherent noise level||0.1 µV|
|Nonlinear-distortions coefficient||0.001 %|
|Mutual influence of channels||130 dB|
|Common-mode rejection ratio||100 dB|
|Operating temperatures||-40 ÷ +70 °С|
|Line control interface weight||2.9 kg (48ch)|
|Line control interface dimensions||340х295х152 mm|