Refraction, Reflection, MASW
Seismograph Seismic Survey Equipment
Functions of Refraction Reflection MASW Seismograph Seismic Survey Equipment
- 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
Features of Refraction Reflection MASW Seismograph Seismic Survey Equipment
- Fast sampling----true 24-bit A/D, minimum sampling interval: 50μs 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 of Refraction Reflection MASW Seismograph Seismic Survey Equipment Sample stations | 1024, 2048, 4096, 8192, 16384 |
Micro-seismic survey, 1M sampling, several notches |
Sampling frequency | 10μs, 25μs, 50μs, 100μs, 200μs, 500μs, 1ms, 2ms, 5ms, 10ms, 20ms |
Micro-seismic survey: 1ms~200ms, selectable |
A/D converter | 24-bit |
Signal stack and amplification | 32 bit |
Dynamic range | 144dB |
Frequency pass bands | 0.1Hz~4000Hz |
Noise | 1μV(full-frequency) |
Amplitude consistency | ±0.2% |
Phase consistency | ±0.01ms |
Lapse-time | 0~9999ms |
EMS memory | 128M |
Disk | no less than 40GB |
CD-ROM | interior |
Display | 800 600 VGA LCD (TFT true colour) |
Input | Chinese character tablet, small keyboard, photoelectric mouse |
Port: | double serial port, one parallel port, double USB port, mouse port, |
Flash-Memory | 32M |
Data format | SEG-2 |
Software package | Shallow reflection software |
Rayleigh wave software |
Micro-seismic collecting software |
High density and high resolution lateral section survey transaction software |
Operating temperature | -10ºC~ +50ºC, 90%RH |
Memory temperature | -20ºC~60ºC |
Power | DC 12V 4A (5.5A at 48 channel) |
Size | 400mm×310mm×180mm |