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¡¡¡¡WZG-6A Wave velocity
Tester
¡¡¡¡WZG-6A is developed based on WZG-24 engineering seismograph
which is Chinese WINDOWS based and 24-bit. It embodies not only
the seismograph design experiences of our institute, but also
the modern electronic technique and design ideals. It is of multi-function,
high-precision, high-speed, high-reliability and fine expansibility.
It is truly a refined one of all kinds of seismographs.
¡¡¡¡Industrial computer or laptop computer is required for operation
through simple connection of USB port. Built-in rechargeable battery
can ensure more than 8 hours work. Seismic source can be hammer,
electric spark or dynamite, so that it is fitted for surface wave
exploration, shear wave velocity test£¬pier test, earth vibration
measurement, seismic imaging, shake measurement, refraction or
reflection survey. It is extensively applied in engineering exploration,
such as irrigation works, power, railway, bridge, civil construction,
traffic, etc.. It can also be used in ground water and energy
exploration, such as petroleum, coal, and uranium.
 Main
functions
- transient multi-channel surface wave (Rayleigh wave) exploration
- shear wave velocity measurement
- pier inspection
- construction quality inspection
- multi-component high-density seismic imaging
- shake blow up measurement
- field long-term jiggle measurement
- shallow refraction and reflection
Applications
¡¡¡¡(1) Groundwork, roadbed and foundation engineering inspection
- Groundwork, roadbed cavity and karst exploration;
- Quaternary coverage delamination;
- Foundation soil type sorting and disease geology investigation;
- Physical property delaminating investigation of base soil;
- Base reinforcement and roadbed refill grinding quality inspection.
¡¡¡¡(2) Tunnel engineering inspection
- Tunnel line survey and surrounding rock sorting;
- Concrete underlayer quality check;
- Tunnel bottom check and forward detection;
- quake monitoring.
¡¡¡¡(3) Large- or medium-scale water reservoir monitoring
- dam hidden trouble inspection;
- Water reservoir bottom sentimental soil and cleanup inspection
- Placed objects inspection at large- or medium-scale water
hinge site.
¡¡¡¡(4) Bridge engineering inspection
- bridge pier base type investigation;
- bridge pier concrete quality inspection;
- bridge quake monitoring.
¡¡¡¡(5) Environmental and geological disaster inspection and
evaluation
- landslide, karst, mudstone flood, mine-out area, active
fault investigation.
Main specifications:
- True 24-bit A/D- fastest sampling rate is 10¦Ìs and 50¦Ìs
for 3 or 6 channels operation.
- Perfect display of raw signal- Fine amplitude and phase
consistency, super-low Distortion, advanced high-cut filter
above 72dB (cut point changeable as sampling frequency, complete
delete the possibility of false frequency).
- High-speed data transfer- fast USB port connection between
device and computer, good performance above other printer
ports, unique in China; sampling and transferring simultaneously
with advanced hardware.
- Momentarily acceptable of trigger signal for sampling during
background signal monitoring.
- Powerful software- WINDOWS version supports each kinds of
seismic working modes data sampling (such as surface wave
test, shear wave velocity testing, earth vibration measurement,
high density imaging, refraction and shallow reflection).
Advanced technique makes the display and scroll very fast;
adjustable channel number, maximum 128; convenient amplitude
balance display; clear static time ticks.
- Flexible configuration, easily extendable-DOS and WINDOWS
Version optional.
- Reasonable structure layout- anti-quake, anti-humidity,
anti-dust.
Main technical features
- 6 channels
- Sampling points£º
¡¡1024, 2048, 4096, 819, 16384
¡¡1M and multi-notch options for earth vibration measurement
- Sampling rate:
¡¡10¦Ìs, 25¦Ìs, 50¦Ìs, 100¦Ìs, 200¦Ìs, 500¦Ìs, 1ms, 2ms, 5ms, 10ms,
20ms
¡¡1ms¡«200ms and multi-notch options for earth vibration measurement
- A / D converter: 24-bit
- Signal stack enhancement: 32-bit
- Dynamic range: 144dB
- Band-pass width: 0.1Hz¡«4000Hz
- Noise : 1¦ÌV, all frequency
- Amplitude consistency: ¡À0.2%
- Phase consistency: ¡À0.01ms
- Distortion: ¡À0.05%
- Time delay: 0¡«9999ms
- Data format: SEG-2
- Software:
¡¡WINDOWS Version software for Rayleigh surface wave processing
¡¡Acquisition and processing software for earth vibration measurement
¡¡WINDOWS Version software for shear wave analysis and processing
¡¡WINDOWS Version software for refraction wave processing
- Temperature range: -10¡æ¡«£«50¡æ 90£¥RH
- Storage temperature: -20¡æ¡«£«60¡æ
- Power supply: DC12V 0.8A£¨built-in rechargeable battery DC12V
8AH£©
- Size: 325mm¡Á235mm¡Á185mm
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