WZG-24B/48C Engineering Seismograph
WZG-24C/48C engineering seismograph is equipment from the third generation that supports the window eight systems and is multi-functioning, high-precision, and stable. Seismic source for examining is from the hammer, electric flicker, or explosion for thousand-meter depth. It applies for seismic surveys, as sheared wave velocity test, surface wave exploration, pier foundation test, ground micro-tremor determination, seismic imaging, shake measurement, refraction or reflection survey, and so on.
A seismographic network records earthquakes. Each seismic terminal in the system determines the motion of the ground in a particular area. The slip of one rock over the other in an earthquake releases energy that makes the ground vibrate. Thus the vibration pushes the adjoining piece of ground and causes it to vibrate, and thus the energy travels out from the earthquake hypocentre in a wave.
When the Earth trembles, earthquakes spread energy in the form of seismic waves. A seismograph is the primary earthquake measurement instrument. The seismograph produces a digital graphic recording of the ground motion caused by the seismic waves. The digital recording is called a seismogram.
A network of worldwide seismographs detects and measures the strength and duration of the earthquake’s waves. The seismograph produces a digital graphic plotting of the ground motion of the event.
Function:
- Multi-wave seismic
- Wave speed (sheared wave) survey
- Transient multifold Rayleigh wave prospecting
- Multi-wave high density seismic imaging
- Shallow reflection survey
- Shallow refraction survey
- Foundation pile inspection
- Civil engineering quality detection
- Site constant shake survey
- Shake-to-blasting survey
Configuration:
Application:
- Inspecting building base, roadbed and civil engineering
- Roadbed, roadbed cavern and lava survey
- Quaternary overburden layer delamination
- Foundation soil type sorting and hazardous geological body survey
- Foundation soil medium physical property delamination survey
- Foundation reinforcement and roadbed backfilling survey
- Bedrock depth and hidden geological structure prospecting
- Engineering inspection
- Tunnel line survey and wall rock classification
- Concrete lining quality detection
- Tunnel bottom detection and pilot detection
- Tremor monitoring
- Environmental and geologic hazards detection and evaluation
- Landslide, karst, debris flow, mined-out area, active fault detection, etc.
- Large-scale and medium-scale water reservoir monitoring
- Dykes and dam incipient fault detection
- Reservoir silt survey and silt discharging quality inspection
- On backfilling stone detection of large-scale or medium-scale dam
- Bridge engineering inspection
- Bridge pier foundation inspection
- Bridge pier concrete inspection
- Bridge tremor inspection
Software Analysis:
Waveform Display
Waveform Display
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Features:
- All in one unit with a high stability: The intergrated tablet PC with a high configuration. The reasonable structure design features with shakeproof, dustproof and waterproof.
- The internal larger lithium battery with a long endurance.
- Fast sampling: 24-bit A/D, minimum Sample interval is 50μs for 24 channels.
- Window 8 system enable the easy and fast operation.
- To transfer data by USB port.
- Powerful software: the new version software is visiable on long section and colorful graph with a high resolution.
- 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.
- Background noises are always being monitored; therefore, trigger signals can be received at any time to trigger sampling.
- Flexible configuration, easily extendable: customer can choose WINDOWS according to their own requirment.
Specifications:
| Channel number | 24 /48 |
| Sample stations | 1024, 2048, 4096, 8192, 16384 |
| Sample frequency | a, Generally, 10μs, 25μs, 50μs, 100μs, 200μs, 500μs, 1ms, 2ms, 5ms, 10ms, 20ms b, For micro-tremor survey, 1ms ~ 200ms optional |
| A/D converter | 24 bit |
| Signal stack and amplification | 32 bit |
| Dynamic range | 144dB |
| Frequency bandwidth | .1Hz ~ 4000Hz |
| Noises | 1μV(full-frequency state) |
| Amplitude consistency | ±0.2% |
| Phase consistency | ±0.01ms |
| Distortion | ±0.05% |
| Time lapse | 0~9999ms |
| Input resistance | 20k |
| Crosstalk supprecssion | ≥90dB |
| Low-cut filter steepness | Software filter |
| High-cut filter steepness | 72dB/ frequency doubling |
| 50Hz trap filter | 40dB |
| Tablet PC | CPU: not less than Intel Core i3 Memory: not less than 4G Solid State Drive: no less than 64GB Display: 12-inch bright LCD screen , resolution 2160 x 1440 Input Device: multitouch Interface: three USB ports Operating System: Windows 8.1 The battery Tablet PC support 7 hours continously work |
| Internal battery | Lithium battery for 18 hours continously work |
| Date format | SEG-2 |
| Working temperature | 0℃~50℃, 90%RH |
| Storage temperature | -20℃ ~ +60℃ |
| Weight | 12.3kg (WZG-24C), 12.8kg (WZG-48C) |
| Dimension | 47cm * 35.7cm * 17.6cm |
Accessories:
PZF 36 24 channel (Electric Stack Switcher)
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Spread cable (24 take out)
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Geophone with clip
