Main Applications

 

 

DZS-1 Deep Digital Seismograph is a kind of 3D data acquisition device. Mainly utilizes explosion and huge seismic wave to detect the characteristics and properties of crustal deep structure; microseismic detection can also be used in the research of natural earthquakes, 3D seismic survey of oil field gas, etc, especially for long time unattended testing
System consists of data acquisition device, zero time receiver and built-in geophone. Reflection and Refraction Exploration: Bedrock embedded depth, shape and regularities of distribution research, hydrological and engineering and environmental geological basic investigation.

 

 

Main Technical Specifications

 

1 Signal Using Channels: 3 channels

2 A/D Converter: 32 bit

3 Sampling Interval: 1 ms, 5 ms, 0 ms, three taps optional

4 Preamplifier gain: 1, 32, 64 times optional

5 Frequency Response (Bandwidth): 1~60Hz

6 Conformity of Amplitude between Channels: smaller than 5%

7 Phase Difference between Channels: Less than 0.1ms

8 Crosstalk Suppression between Channels: Greater than 100 dB

9 Dynamic Range: no less than 125 dB

10 Time Stability: 5×10-8

11 CF Card Capacity: Industrial 4G

12 Water-Proof: 1 m

13 Working Temperature: -20°C~40°C

14 Power Supply: +7.2V23AH and -7.2V5.2AH

15 Volume: Diameter 170mm;Height 160mm

16 Power Consumption: in operation: 130 mA; on standby 25 mA

17 Weight: 5.7 kg

 

18 Starting-up timing range is 7 days maximum. Maximum 30 power-on / power-off time intervals in duration.

 

19 Power Supply: Use lithium cell for power supply. Can meet normal working power supply within 7 days for whole machine; daily time span for data acquisition is calculated as 15 hours. Regular starting-up and shut-down timing can be adopted. Power-on for sampling when required, power-off upon sampling completion.

 

20 Documentation: One data file can be formed at each sampling, and every file contains the following texts: instrument number, station index number, sampling rate, amplification times, time synchronization time before GPS, sampling stat time, sampling stop time, synchronization time after GPS, GPS latitude, GPS longitude, GPS elevation, voltage before lithium cell, voltage after lithium cell, sampling point data.

 

21Length of Data File Name, 8-Bit: The first 6 digits for station index number, the 6 digits for file name (01, 02, ……30)

 

22 Development of PC software sampling VC 6.0, which can be used for WINXP system

 

23 Adopt USB 2.0 interface for data transmission with PC

 

24 With PDA, easy for field work; PDA is to complete parameter setting of field work (sampling time synchronization, time synchronization, GPS information acquisition and input, sampling time interval setting, etc.)

 

25 Both PC and PDA have functions for clearing data on FD card

 

26 Built-in Geophone: 2Hz Ground Three-Component Geophone, Qty: 1

 

27 Under-voltage Indication Function