Main Function: Surface wave, high-density seismic imaging, pulse measurement, refraction shear wave measurement, city blasting vibration safety evaluation, pile foundation testing, Realization of Various Seismic Methods; etc. High dynamic range, high technical index, fully meet the demands of city geophysical exploration; also provide an alternative selection for field exploration. Working system is on the base of Chinese Windows environment, powerful in functions, easy for operation. Humanized hand mouse, or touch panel directly manipulated. Realization of Various Seismic Methods; Surface wave, high-density seismic imaging, pulse measurement, refraction, shear wave measurement, city blasting vibration safety evaluation, pile foundation testing, etc. Technical Specifications Computer Configuration: Military Grade PC104 Control Computer P4 (933MHz); Memory: 128MB; Hard Disk: no smaller than 40GB; 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 ¦ÌV at full-frequency state Number of channels: 6 (optional 1,2,3 channels mode) Time Delay: 0~9999ms Amplitude conformity:less than 1%; Phase conformity: better than ¡À0.5ms S Number of Sampling Points: 512, 1024, 2048, 4096, 8192, 16384 , optionally Preamplifier Gain: 100 times (40dB), 10 times (20dB), 1 times, optionally A/D Converter: floating point 24 bit A/D converter Supported Data Format: SEG-2 Power Supply: 12V DC Service Environment: -10¡æ~ +55 ¡æ; Humidity 90%RH Volume: 390¡Á270¡Á190mm Weight: 9kg