- DZS-1 DeepDigital Seismograph is a kind of 3D data acquisition device. Mainly utilizesexplosion and huge seismic wave to detect the characteristics and properties ofcrustal deep structure; microseismic detection can also be used in the researchof natural earthquakes, 3D seismic survey of oil field gas, etc, especially forlong 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 basicinvestigation.
Main Features
- Timingpower-on for data acquisition and power-off upon completion, automatic datastorage
- GPS timeservice, geographical location targeting
- 3DObservation
- 32-bit A/Dconverter, high precision and high dynamic range can be reliablyguaranteed
- Low-noisedesign, system noise is lower than 1μV
- PDA orlaptop computer operation
- IndustrialCF card data storage, safe and reliable
- Small-sized,water-proof, shock-proof, anti-interference
- Signal UsingChannels: 3 channels
- A/DConverter: 32 bit
- SamplingInterval: 1 ms, 5 ms, 0 ms, three taps optional
- Preamplifiergain: 1, 32, 64 times optional
- FrequencyResponse (Bandwidth): 1~60Hz
- Conformityof Amplitude between Channels: smaller than 5%
- PhaseDifference between Channels: Less than 0.1ms
- CrosstalkSuppression between Channels: Greater than 100 dB
- DynamicRange: no less than 125 dB
- TimeStability: 5×10-8
- CF CardCapacity: Industrial 4G
- Water-Proof:1 m
- WorkingTemperature: -20°C~40°C
- PowerSupply: +7.2V23AH and -7.2V5.2AH
- Volume:Diameter 170mm;Height 160mm
- PowerConsumption: in operation: 130 mA; on standby 25 mA
- Weight: 5.7kg
- Starting-uptiming range is 7 days maximum. Maximum 30 power-on / power-off time intervalsin duration.
- PowerSupply: Use lithium cell for power supply. Can meet normal working power supplywithin 7 days for whole machine; daily time span for data acquisition iscalculated as 15 hours. Regular starting-up and shut-down timing can be adopted.Power-on for sampling when required, power-off upon samplingcompletion.
- Documentation: One data file can be formed ateach sampling, and every file contains the following texts: instrument number,station index number, sampling rate, amplification times, time synchronizationtime before GPS, sampling stat time, sampling stop time, synchronization timeafter GPS, GPS latitude, GPS longitude, GPS elevation, voltage before lithiumcell, voltage after lithium cell, sampling point data.
- Length ofData File Name, 8-Bit: The first 6 digits for station index number, the 6 digitsfor file name (01, 02, ……30)
- Developmentof PC software sampling VC 6.0, which can be used for WINXP system
- Adopt USB2.0 interface for data transmission with PC
- With PDA,easy for field work; PDA is to complete parameter setting of field work(sampling time synchronization, time synchronization, GPS informationacquisition and input, sampling time interval setting, etc.)
- Both PC andPDA have functions for clearing data on FD card
- Built-inGeophone: 2Hz Ground Three-Component Geophone, Qty: 1
- Under-voltage Indication Function
- DZS-1 ZeroTime Receiver
- Receive GPSclock, geographic information, elevation signal, also indicate
- minute andsecond pulse signal output of clock signals
- Time SignalRecord of Detonator Explosion Wire-Break; Lock the current time by leading edgeof wire-break signal (lock on the display, accurate to ±0.0001 seconds, andstore the time together with geographic information, elevationvalue)
- 800 time andgeographical information can be recorded.
- 2HzThree-component Geophone (at 20°C)
- Free-RunningFrequency (Hz): 2±10%
- CoilResistance: 6040±5%
- Sensitivity(V/cmS-1): 2±10%
- DampingCoefficient: 0.7±10%
- InternalResistance: 5800±5%
- InsulationResistance: (MΩ): greater than 10
