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ˇˇˇˇWZG-24Aˇ˘48A engineering seismograph series
ˇˇˇˇOur institute makes the engineering seismograph by referring
to other advanced seismograph home and abroad. It is true 24-bit
and for Chinese WINDOWS. It is not only based on our designing
experiences, but also adopt latest electronic technique and design
ideal. It is characterized with multi-function, high accuracy,
high speed, reliable data and good expandability.
ˇˇˇˇExciting source can be Hammer, spark or explosion. Exploration
depth ranges from a few meters to several hundred meters, and
greater deep seismic data can be gained by using time-lapse function.
It is applicable for seismic reflection survey, seismic refraction
survey, seismic surface wave method, foundation pile inspection,
micro-seismic survey, seismic image, shake measurement, and wave
speed (secondary wave) testing, is extensively used in hydrogeology,
electric power, railway, bridge, urban architecture, traffic and
other engineering geology prospecting. The seismograph also can
be used for petroleum, coalfield, uranium ore, ground water and
other resource exploration..
 Functions
- Transient multifold Rayleigh wave prospecting
- Shallow reflection survey
- Shallow refraction survey
- Wave speed (secondary wave) survey
- Mutil-wave high density seismic reflection
- Foundation pile inspection
- Civil engineering quality detection
- Site constant micro-tremor survey
- Shake blasting survey
Applications
ˇˇBuilding base, roadbed and foundation engineering
detection
- Cavity survey, cavern survey
- Quaternary overburden layer delamination
- Foundation soil type and dangerous geology body survey
- Foundation soil medium physical property delamination survey
- Foundation stabilization and roadbed backfill rolling survey
- Bedrock depth and concealed geology structure prospecting
ˇˇTunnel construction detection
- Tunnel line survey and wall rock classification
- Concrete lining quality detection
- Tunnel bottom detection and leading exploration
- Tremor monitoring
ˇˇLarge and medium reservoir monitoring
- Dykes and dam incipient fault detection
- Reservoir sedimentation survey and exclusion sedimentation
quality inspection
- Large and medium dam jackstone inspection
ˇˇBridge engineering inspection
- Bridge pier foundation inspection
- Bridge pier concrete inspection
- Bridge tremor inspection
ˇˇEnvironmental and geologic Engineering hazard detection
and appraisal
Landslide, karst, mud and stone flow, dig-out area, active fault
and other detection
Features
- Fast sampling----true 24-bit A/D, minimum sampling interval:
50¦Ěs for 24 channel.
- Rendering original signal perfectly----perfect amplitude
and phase consistency, low distortion, band outside shearing
better than 72dB (shearing frequency point changing with sampling
frequency automatically, removing alias completely).
- High-speed data transfer----Transmitting data by USB port
between internal industrial PC and data collector. Advanced
hardware make the sampling and transferring data simultaneously.
- Powerful software function----sampling software under WINDOWS
supports all kinds data acquisition of seismic methods (shallow
reflection, refraction, secondary wave speed testing, micro-seismic
survey, high density image and other application). Data displaying
and rolling screen are very quick by using advanced graphic
technique. Channel on the screen is adjustable, 128 channel
maximum.
- Industrial PC configuration----PIII 533MHz, 128M memory,
40G harddisk, interior CD-ROM, 800 600TFT true color LCD,
Chinese character tablet, small keyboard, photoelectric mouse,
32M Flash-Memory, double serial port, one parallel port, double
USB port, mouse port, keyboard port. Seismic data collecting
and transacting is convenient.
- Configuration and expansibility----DOS or WINDOWS software
available. Instrument can be upgraded to 48 channel seismograph
by purchasing data collecting card and software
- Stack survey support----Combined with our WZKD-1 electric
stack switcher, stack survey can be realized efficiently.
- Reasonable configuration---- anti-shake, damp-proof and
dust-proof design.
Technical specifications:
- Channel: 6/12/24/48
- Sample stations:
ˇˇ1024, 2048, 4096, 8192, 16384
ˇˇMicro-seismic survey, 1M sampling, several notches
- Sampling frequency:
ˇˇ10¦Ěs, 25¦Ěs, 50¦Ěs, 100¦Ěs, 200¦Ěs, 500¦Ěs, 1ms, 2ms, 5ms, 10ms,
20ms
ˇˇMicro-seismic survey: 1msˇ«200ms, selectable
- A/D converter: 24-bit
- Signal stack and amplification: 32 bit
- Dynamic range: 144dB
- Frequency pass bands: 0.1Hzˇ«4000Hz
- Noise: 1¦ĚV(full-frequency)
- Amplitude consistency: ˇŔ0.2%
- Phase consistency: ˇŔ0.01ms
- Lapse-time: 0ˇ«9999ms
- Host computer (Industrial PC)
ˇˇPIII 533MHz
ˇˇEMS memory: 128M
ˇˇDisk: no less than 40GB
ˇˇCD-ROM: interior
ˇˇDisplay: 800 600 VGA LCD (TFT true colour)
ˇˇInput: Chinese character tablet, small keyboard, photoelectric
mouse
ˇˇPort: double serial port, one parallel port, double USB port,
mouse port,
ˇˇˇˇˇˇˇˇkeyboard port
ˇˇFlash-Memory: 32M
- Data format: SEG-2
- Software package:
ˇˇShallow reflection software
ˇˇRayleigh wave software
ˇˇMicro-seismic collecting software
ˇˇHigh density and high resolution lateral section survey transaction
software
- Operating temperature: -10ˇćˇ« +50ˇć, 90%RH
- Memory temperature: -20ˇćˇ«60ˇć
- Power: DC 12V 4A (5.5A at 48 channel)
- Size: 400mmˇÁ310mmˇÁ180mm
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