The digital engineering seismograph is a 24-digit digital seismic
instrument developed by our company, which works under the Chinese
Win10 and Win7 system. It adopts the advanced electronic technology
and design concept at home and abroad, and combines the use habit
of many domestic users, to devepop a set of seismograph instrument
of multi-function, high precision, high speed and high reliability,
it is the leading seismograph instrument in China with good
man-machine interface and good expandability. The instrument can
use hammer, drop, electric spark, detonator(explosive) exploson as
the excitation seismic source, the exploration depth can reach
thousands of meters, field exploration methods including:
reflection exploration, refraction exploration, surface
wave(Rayleigh wave) exploration, multi-wave seismic image exploration, ground pulsation(conventional micromotion)
measurement, builing and site vibration safety assessment,
foundation pile detection, cross-hole tomography(CT)mesurement and
in-well shear wave mesurement, etc, it is widely used in
engineering geological exploration of transportation, hydropower,
road and bridge, urban construction and other fields, as well as
resource exploration of oil and gas, coal field, mineral resources
and groundwater
Main function
Reflection prospecting: analysis of shallow water surface, bedrock burial
depth, geological layer, fracture cavity, etc.,
Refraction exploration: bedrock burial depth and shape trend analysis
Surfsce wave exploration: overlay stratification, roadbed, embankment,
slope disaster investigation, etc.
Multiwave seismic image measurement: foundation, roadbed survey, limestone
case survey
Field fretting measurement: vibration monitoring and safety evaluation
parameter analysis of site and work area
Blasting measurement: all kinds of blasting vibration on the site and
building safety assessment
Across the hole CT: detection of underground structure, karst and other
geological
Shear wave measurement: measurement of elastic mechanical parameters of
underground geological rock mass
Main feature
Adopt the latest high speed, high precision ture 24 bit A/D converter,
the highest sampling rate reaches 10Üs when 48 channels sampling
Simultaneously
Bult-in super capacity lithium battery, 24 channel full power can work
continuously for more than 15 hours, no need external power supply
Ultra-low diatortion, with outer suppression of advnced filters, at the same
time, there are various digital filters set in software
Brand new outside view, hand hold pad pc to operate, WIFI communication,
the longest distance up to 100 meters, convenient and fast;
Full frequency noise monitoring, data coilection more real and effective;
Continuous lesk-free monitoring sampling;
With coverage cable, It can be more convenient for field exploration and greatly improve the
efficlency of field work;
With coverage measurement function: this 24 channel seismic instrument
can support 12 channel coverage measurement without adding external
equipment;
The Instrument with built-in detection system: self-check noise, crosstalk,
consistency and other items, self-test report automatically
generated;
The data storage file is in standard Seg2 and SegY formats, it
supports various processing software at home and abroad and save
text format, which is convenient for users to process the data by
themselves
Main technical specifications
Operating deck: WIFI remote control for Window10 or 7 tablet PC or laptops
Frequency Response: 0.1Hz~16Hz;
The sampling time delay:0~9999ms;
Noise: less than0.5 u V under full frequency
Crosstalk between channels: better than 80dB
Amplitude consistency: better than +-0.1%, Phase consistency: better than
+-10us;
Dynamic range: better than 138dB
Trigger mode: threshold trigger, internal trigger, external trigger (short
circuit, open circuit, signal, etc);
Sampling frequency: 10μs,20μs,50μs,100μs,200μs,500μs,1ms,2ms,5ms,10ms,20ms etc;
Sampling number: 512,1024,2048,4096,8192,16384, etc, the maximum length is
32768
AD converter: use the last, supper high speed 24∑-∆ 24 bitA/D converter
Defalse filter: automatic tracking with sampling rate and equipped with a
variety of digital filters
Magnifications: one set of six channels, 1, 4, 16, 64, 128 times optional(1/8,
1/4, 1/2 times can be open extea according to user requirment);
Data format: SEG-2, SEG-Y, TXT
Working power supply: built-in 12V/9A lithium battery, or external 12V battery
power;
Working current: 24-channel is less than 0.6A
Operating environment temperature: -10C~+60C; humidty: <90%RH
Volume: 380*300*200mm
Supporting products: exploder, covering cable, large cable and
extension cable, various function geophone, hanner switch and
extension cable
