Seismic Survey Instrument Seismic Reflection and Refraction Surveys Equipment for Underground and Land Exploration
Product Description
Seismic survey instrument is used to study the subsurface of the Earth by measuring the response of seismic waves (usually sound waves or vibrations) as they travel through different geological layers. This type of equipment is crucial for industries like oil and gas exploration, environmental studies, and geotechnical investigations.
Working Principle:
Seismic surveys work by generating seismic waves using a source (like dynamite or vibrators) placed on the Earth's surface or in the subsurface. These waves travel through the ground and are reflected by different geological layers. The reflected waves are captured by geophones or accelerometers placed on the surface. The data is then analyzed to create a map of the subsurface structures.
Seismic survey instrument 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, higspeed, high-reliability and fine expansibility. It is truly a refined one of all kinds of seismographs.
1.Seismic Source: Generates seismic waves (e.g., explosive charges, vibroseis trucks).
2.Sensors (Geophones/Accelerometers): Detect the reflected seismic waves.
3.Data Acquisition: Captured signals are processed and recorded.
4.Data Processing: The data is used to create subsurface images or models
Main functions of Seismic Survey Instrument Seismic Reflection and Refraction Surveys Equipment for Underground and Land Exploration
| 1 |
transient multi-channel surface wave (Rayleigh wave) exploration |
| 2 |
shear wave velocity measurement |
| 3 |
pier inspection |
| 4 |
construction quality inspection |
| 5 |
multi-component high-density seismic imaging |
| 6 |
shake blow up measurement |
| 7 |
field long-term jiggle measurement |
| 8 |
shallow refraction and reflection |
Applications of Seismic Survey Instrument Seismic Reflection and Refraction Surveys Equipment for Underground and Land Exploration
(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 of Seismic Survey Instrument Seismic Reflection and Refraction Surveys Equipment for Underground and Land Exploration
- True 24-bit A/D- fastest sampling rate is 10μs and 50μs 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
- 12 channels
- Sampling points:
1024, 2048, 4096, 819, 16384
1M and multi-notch options for earth vibration measurement
- Sampling rate:
10μs, 25μs, 50μs, 100μs, 200μs, 500μs, 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 : 1μV, all frequency
- Amplitude consistency: ±0.2%
- Phase consistency: ±0.01ms
- Distortion: ±0.05%
- 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: -10ºC~+50ºC 90%RH
- Storage temperature: -20ºC~+60ºC
- Power supply: DC12V 0.8A(built-in rechargeable battery DC12V 8AH)
- Size: 325mm×235mm×185mm
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