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Model GS101 -Distributed High Precision Land Seismograph
GS101 distributed high precision land seismograph adopt the 32-bit high precision Σ -Δ ADC. It supports ten thousand channel 2D and 3D seismic exploration. The instruments contain industry PC, master station, cross station, acquisition station. The connection structure is very flexible and light. Exploration depth can reach from several meters to thousands of meters. This instrument is applicable to the seismic work such as reflection, refraction, surface wave exploration, pile foundation inspection, pulse, seismic imaging, vibration measurement and wave velocity (shear wave) test etc. The instrument has been widely used for different areas engineering geological exploration such as water conservancy, electricity, roads, railways, bridges, urban construction, transportation, groundwater and resources exploration such as oil, coal, coal-bed methane, shale gas, metals and non-metallic mineral.
Through laboratory and field-proven contrast testing, the main technical parameters have reached an international advanced level, some of them are leading international. Till now we have applied for 9 invention patents, 6 utility model patents, 1 software copyright on high precision data acquisition technology, low noise circuit design, high-speed data transmission with high reliability, low power design,fault-tolerant technology, anti-jamming technology, fault automatic positioning etc.
- 32-bit ∑-△ADC, higher conversion precision, lower noise, higher dynamic range
- Single box/station support 2, 4, 6, or 8 channels(optional)
- Distributed design, 3-5 times higher than that of the centralized operation efficiency
- Highly cost effective, save 15–25% cost than other manufacturers
1. Foundation, Subgrade and Foundation Engineering Detection
Foundation and subgrade cavity survey and of lava exploration, foundation soil classification and disease geological survey, foundation rock & soil medium physical layer survey, foundation reinforcement effect and roadbed backfill RCC quality survey, bedrock buried depth and concealed geological structure exploration
2. Tunnel Projects Detection
Tunnel route survey and surrounding rock classification, concrete lining quality inspection, the bottom of the tunnel inspection and advanced monitoring and detection, vibration monitoring.
3. Large and Medium-sized Reservoirs Detection
Dam hidden trouble detection, reservoir sedimentation survey and desludging sedimentation effect inspection, large and medium-sized water conservancy construction detection
4. Bridge Projects Detection
Pier foundation type survey, abutment pile foundation concrete quality inspection, bridge vibration monitoring.
5. Environmental and Geological Hazard Detection and Evaluation
Mined-outarea, landslide, karst, landslides, active fault survey.
6. Metaland Non-metallic Mineral Exploration
7. Coal, Coal-bed Methane, Shale gas, Oil and Other resources exploration 2D and 3D Exploration
- 24,48, 96 channels distributed shallow seismograph, small refractometer
- 96-480 channel 2D engineering seismic or resources exploration
- More than thousands of 3D seismic exploration
Master Station
The GS101 Master Station is, made from alloy magnesium and aluminum station housing. It also contains a seismic source data interface with built-in lithium battery.
Acquisition Station
The GS101 Acquisition Station box is a single station with 8channels, made from alloy magnesium and aluminium station housing.
Cross Station
The GS101 Cross Station is a single station with 8 channels, made from alloy magnesium and aluminum station housing.
Acquisition PC
The GS101 Cross Station is a single station with 8 channels, made from alloy magnesium and aluminum station housing.
1. 32-bits ADC and low noise circuit design
Now main manufacturers are all 24-bits ADC
32 bits ADC has higher conversion precision, lower noise, higher dynamic range.
2. Synchronous acquisition error less than 1μs
Now main manufacturers distributed seismograph adopt IEEE1588 technology to realize synchronization. The error is usually in a few milliseconds or a few hundred milliseconds.However, shallow seismic acquisition sampling rate is 0.5 ms – 0.25 ms, recovery technology so much larger error will cause damage on inversion of stratum structure.
GS101 adopt recovery technology and phase-locked loop technology to realize global clockdistribution and command synchronous compensation technology, which realizes the large synchronous data acquisition of geophones array. The error is less than 1μs . Thisworld’s leading technology, and 3 papers published in SCI journals.
3. Strong expandable
Easily configured to 2, 4 or 6 channels ofeach station
Convenient and flexible for 8 channels ofeach station expandable
4. Preamplifier with multiple configuration
Preamplifier level: 0 dB, 6 dB, 12 dB, 18dB, 24 dB, 36 dB.
More levels to choose and more convenientfor different geological seismic acquisition
5. Strong self-checking function
Instrument can be various parameterson-line self-checking, the internal situation is real-time online monitoring(voltage, temperature)
Self checking and monitoring can bereal-time displayed on master laptop software page.
6. Instrument overall performance meet orexceed the international advanced level
Compared with France and USA instruments, GS101 maintechnical parameters are better in the laboratory and the field contrasttesting.
Seismic applications for the GS101 High Precision Land Seismograph include: reflection, refraction, surface wave exploration, pile foundation inspection, pulse investigations, seismic imaging, vibration measurements and wave velocity. The GS101 can be has been widely used in a number of different types of studies in the realm of geological/geophysical exploration. These application studies include: oil exploration, mineral exploration, construction and engineering, ground water exploration and water conservation to name a few.