Shallow-Layer Seismograph seismic refraction equipment seismic test
seismic survey equipment for sale
Main Applications
Reflection and Refraction Exploration: Bedrock embedded depth, shape and regularities of distribution research, hydrological and engineering and environmental geological basic investigation.
Surface Wave Prospecting: Cover layer investigation; weathering zone investigation; underground cavity and diseased geologic body survey; subgrade, levee, slope disease investigation.
High-density Multi-wave Seismic Imaging: Cavity investigation of ground base and subgrade (roadbed), cave surveying, etc.
Quality Inspection of Civil Engineering; Bridge pier and building pile foundation detecting, etc.
Safety Evaluation of City Blasting Vibration: All kinds of safety monitoring of blasting vibration.
Shear Wave Velocity Test: Measurement of rock mass elasticity parameters, etc.
Main Features
Shallow-Layer Seismograph seismic refraction equipment seismic test seismic survey equipment for sale
- Fast sampling: 24-bit A/D, minimum Sample interval is 10μs for 3 channels and 50μs for 6 channels
- Perfectly displaying original signals: amplitude and phase are of high consistency, low distortion, with advanced high-cut wave filter which is better than that for 72dB; original signals are presented once again.
- High-speed data transferring: data collecting device and industrial PC (or notebook PC) are designed with USB, performance are much higher than other printer ports.
- Background noises are always being monitored; therefore, trigger signals can be received at any time to trigger sampling.
- Powerful software: under WINDOWS operating system, collecting software supports various working modes, such as sheared wave velocity testing, surface wave testing, micro-tremor detecting, high-density imaging, reflection and shallow refraction survey. This system adopts advanced graphic technology and screen rolls along very fast; maximum 128 channels of wave can be displayed in one screen; waveform amplitude can be balanced conveniently, etc.
- Flexible configuration, easily extendable: both DOS and WINDOWS are optional.
- Reasonable structure design, shakeproof, dustproof and waterproof.
2.2 Technical Specifications
Shallow-Layer Seismograph seismic refraction equipment seismic test seismic survey equipment for sale
- Channel number: 24
- Sample stations: 1024, 2048, 4096, 8192, 16384
- Sample frequency:
- Generally, 10μs, 25μs, 50μs, 100μs, 200μs, 500μs, 1ms, 2ms, 5ms, 10ms, 20ms
- For micro-tremor survey, 1ms ~ 200ms selectable
- A/D converter: 24bit
- Signal stack and amplification: 32 bit
- Dynamic range: 140dB
- Frequency bandwidth: 0.1Hz ~ 4000Hz
- Noises: 1μV(full-frequency state)
- Amplitude consistency: ±0.2%
- Phase consistency: ±0.01ms
- Time lapse: 0 ~ 9999ms
- Data format: SEG-2
- Working temperature: 0ºC~ 50ºC, 90%RH
- Storage temperature: -20ºC ~ +60ºC
Shallow-Layer Seismograph seismic refraction equipment seismic test seismic survey equipment for sale
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