DZQ Series Seismic Survey By Refraction Method

Application:

 DZQ Series Seismic Survey is a portable and cost effective 6-48 channel seismograph for refraction exploration, downhole PS logging and crosshole seismic for engineering and construction.

This is also used as a data acquisition system for multi-channel surface wave analysis.

The system is compact, light in weight to transport and do the job with a smaller 12VDC battery anywhere.

It's based on the Windows XP SP2 professional with XGA/TFT color display, Hard disk drive, USB2.0 ports with higher quality and reliable field performance.

Main Technical Specifications

Computer Configuration: Military Grade PC104 Control Computer P4 (933MHz); Memory: 256MB; Hard Disk: no smaller than 80GB; Operating System: win-XP

Display: 1024x768 dot matrix, high brightness TFT (true color) LED.

Input Device: Equipped with suitable field-use membrane keyboard and touch screen; can also be connected with PS / 2 computer keyboard and mouse; provided with handwriting tablet.

Interface: Dual USB interface, PS/2 keyboard, mouse interface, parallel port, Ethernet port, etc.

Removable Storage: USB disk, or adopting mobile hard disk drive, USB mobile drive, etc.

Frequency Response Range: 0.1Hz~4kHz

Noise: smaller than 1 μV at full-frequency state

Sampling Time Delay: 0~9999ms

Conformity: amplitude conformity better than ±0.02%; phase conformity: better than ±0.01ms

Sampling Rate: 10μs/31.25μs/62.5μs/125μs/250μs/500μs/1 ms/2 ms/4 ms/8 ms/16ms/32ms-400ms several taps

Number of Sampling Points: 512, 1024, 2048, 4096, 8192, 16384, etc., maximum record up to 32768;

Preamplifier Gain: Every six channels as a group, optionally chosen by software: 64 times (36dB), 16 times (24dB), 4 times (12dB), 1times;

A/D Converter: Adopt the latest, ultra high speed Σ-Δ24 bit A/D converter;

Alias Filter: Automatic tracking along with the sampling rate; -3dB, down to 120dB at the place with 0.216 times of sampling rate; and provided with various digital wave filters, cutoff frequency (at the place with -3dB) if required

Supported Data Format: SEG-2, SEG-Y, CSP

Trigger Mode: Internal and external triggered by hammer switch; triggered via blasting, and electric spark; also triggered by wire-breaking or connecting

Power Supply: 12V±20% battery-powered; smaller than 4 amps (48 channels, 5 amps when LCD working in extra-brightness).

Service Environment: -10°C~ +55 °C; Humidity 90%RH

Volume: 390×270×190mm

Weight: 18kg