DZS-1 Deep Digital Seismograph

DZS-1 Deep Digital Seismograph is a kind of 3D data acquisition device. Mainly utilizes explosion and huge seismic wave

DZS-1 Deep Digital Seismograph

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 Features

Timing power-on for data acquisition and power-off upon completion, automatic data storageGPS time service, geographical location targeting3D Observation32-bit A/D converter, high precision and high dynamic range can be reliably guaranteedLow-noise design, system noise is lower than 1μVPDA or laptop computer operationIndustrial CF card data storage, safe and reliableSmall-sized, water-proof, shock-proof, anti-interference

 Main Technical Specifications

Signal Using Channels: 3 channelsA/D Converter: 32 bitSampling Interval: 1 ms, 5 ms, 0 ms, three taps optionalPreamplifier gain: 1, 32, 64 times optionalFrequency Response (Bandwidth): 1~60HzConformity of Amplitude between Channels: smaller than 5%Phase Difference between Channels: Less than 0.1msCrosstalk Suppression between Channels: Greater than 100 dBDynamic Range: no less than 125 dBTime Stability: 5×10-8CF Card Capacity: Industrial 4GWater-Proof: 1 mWorking Temperature: -20°C~40°CPower Supply: +7.2V23AH and -7.2V5.2AHVolume: Diameter 170mm;Height 160mmPower Consumption: in operation: 130 mA; on standby 25 mAWeight: 5.7 kgStarting-up timing range is 7 days maximum. Maximum 30 power-on / power-off time intervals in duration.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.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.Length of Data File Name, 8-Bit: The first 6 digits for station index number, the 6 digits for file name (01, 02, ……30)Development of PC software sampling VC 6.0, which can be used for WINXP systemAdopt USB 2.0 interface for data transmission with PCWith 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.)Both PC and PDA have functions for clearing data on FD cardBuilt-in Geophone: 2Hz Ground Three-Component Geophone, Qty: 1Under-voltage Indication FunctionDZS-1 Zero Time ReceiverReceive GPS clock, geographic information, elevation signal, also indicateminute and second pulse signal output of clock signalsTime Signal Record of Detonator Explosion Wire-Break; Lock the current time by leading edge of wire-break signal (lock on the display, accurate to ±0.0001 seconds, and store the time together with geographic information, elevation value)800 time and geographical information can be recorded.2Hz Three-component Geophone (at 20°C)Free-Running Frequency (Hz): 2±10%Coil Resistance: 6040±5%Sensitivity (V/cmS-1): 2±10%Damping Coefficient: 0.7±10%Internal Resistance: 5800±5%Insulation Resistance: (MΩ): greater than 10

DZS-1 Deep Digital Seismograph