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Home > Products > High Resolution Seismic Recording System - Distributed DAQLink 3
Seismic Recording Systems

High Resolution Seismic Recording System - Distributed DAQLink 3

Supplied By: Seismic Source Company, USA

Rs. 0.00

Distributed DAQLink 3 - Distributed High Resolution Seismic Recording System

The Distributed DAQlink III is the combination of a standard DAQlink III with an "expansion bubble". This expansion bubble houses a high-speed networking subsystem for passing trigger signals and seismic data between units. The entire system is connected to a computer controls the seismograph and stores the acquired seismic data.


The distributed system can be interconnected through conventional geophone-style cables, or high-speed network-style cables, or else conventional Wi-Fi transceivers. Plus, all Distributed DAQlink III units can be utilized as standard seismographs if the need should arise.


24 Channel Seismic Recording Systems

Field Benefits

Cutting Edge Technology for Data Quality

    • Ultra High-Speed 24bit ADC (48,000 samples/sec)

    • High Resolution Clock

    • Low Noise & Low Distortion Means Better Data

Designed to Produce and Protect Data

    • Data Always Stored in Box - No Lost Data

    • Offload Data While Recording – No Lost Production

    • Better Data Handling for Superior Production

Versatile Operation

    • Continuous Recording

    • Trigger on Time, Data Event or Trigger Input

    • Different Modes for Different Types of Projects

Multiple Operation Modes

    • Operate as Stand-Alone Seismograph - Great for Small Crews

    • Multiple Units Operating in Concert - Increases Crews Flexibility

Sturdy Aluminum Construction

    • Rugged, Lightweight, "O" Ring Sealed to IP 67

    • Threaded Holes for Mounting

    • For Permanent Mounting, or Long-Term Deployment

Downhole Recording

    • 24 Channel Units Ideal for Shallow Holes with 8 three-Component Geophone Sondes

    • Use WiFi network to collect data from multiple wells

Earth Monitoring

    • Low Power for Long-Term Use

    • Use Cellular Modem for Remote Data Collection

Useful for Every Project

    • Engineering Seismic

    • Oil & Gas Exploration

    • MicroSeismic Frac Monitoring

    • Strong Motion Detection and Monitoring

A MegaDAQ consists of multiple DAQ3-24s connected via a network. This can be either a wired or wireless network. The network both controls the seismographs and collects the seismic data in real time.


Network Details

Network Connection Options

    • Geophone String Wire – 2.5 Mbps US / 14.92 Mbps DS @ 2 Km

    • Network Cabling – 8.34 Mbps US / 6.07 Mbps DS @ 2 Km

    • Wi-Fi – 54 Mbps @ 1 Km (w/ clear line of sight)

Time Break - Trigger Options

    • Hardwire Trigger – Trigger through wire to nearest DAQlink and transfer trigger signal through cable

    • Radio Trigger – Trigger across radio to Distributed DAQlink and transfer trigger signal through cable

    • Trigger Storage – With DAQlinks continuously recording, store trigger times at Source Point and Post-Process Shot Records

Seismic Recording Systems


DAQLink 3 Seismic Recording System Specifications

DAQLink 3 Electrical Specifications
Analog/Digital: 24 bit sigma delta converter
Anti-Alias Filters: 85% of Nyquist frequency
Low Cut Filter: User Selectable – DC, 0.1 Hz, 2 Hz
Sample Rates: 1/16, 1/8, 1/4, 1/2, 1, 2, 4, 8, 16 ms
PreAmp Gains: x2 (6 dB) & x32 (30 dB) standard
x1 (0 dB) & x16 (24 dB) optional
Max Input at x2 (Standard): 3.58 Volts P-P x2 (Standard)
7.16 Volts P-P x1 (Optional)
Bandwidth: DC to 15 kHz
Power: Less than 0.8 watts per channel
Input Impedance: 100kΩ
Clock Sync: GPS
DAQLink 3 Physical Specifications
No. of Channels: 24
Temperature: -40°C to +85°C
Humidity: 0 to 100%
Size: 330 x 230 x 120 mm
Weight: 6.8 kg
Data Storage (Internal 16GB CF): 120 hours (24 channels @ 2ms)
Data Storage (through Ethernet): Unlimited
Data Format: 32-bit float IEEE SEG-Y/SEG-D
LEDs: Network Connect, Network Data Status and Battery
DAQLink 3 Connectors Specifications
RJ-45: Standard CAT-5 Ethernet
GPS: 4-pin Weatherproof
Trigger: 3-pin Weatherproof
Power: 2-pin Weatherproof
Auxiliary Port: 19-pin Weatherproof
Seismic Data: 55-pin Weatherproof
Up Network Port: 10-pin male Weatherproof
Down Network Port: 10-pin female Weatherproof
DAQLink 3 Performance Specifications
Trigger Accuracy: ±1 µs at all sample rates
Dynamic Range: Better than 118 dB (at 2 ms)
THD: 0.0012 %
Crosstalk: Better than -125 dB
Common Mode Rejection: Better than 100 dB
Noise Floor: < 0.2 µV RMS @ 2ms

Seismic Recording Systems

 


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