DAQlink 4 Seismograph

DAQlink 4 Seismograph

Technical Specifications

Available for RENT and for SALE

DAQlink4 is the fourth generation of portable seismograph systems designed by Seismic Source. It can be configured as a stand-alone monitoring system, a refraction system or a distributed seismic reflection system. Vscope software controls the seismograph, providing acquisition control, data QC and file storage. This seismograph utilizes industry standard Ethernet for command, control, and fast data file transfer.


The DAQlink4

It may operate as Stand-Alone Seismograph, operate as an Acquisition System, Use a sledgehammer and hammer switch

The many features are included:  Passive Monitoring, True Continuous Recording, Use Cellular Modem for Remote Data Collection, GPS for timing and location, Use LTA (Long Term Average) or STA (Short Term Average) to detect events, Correlator, and many more.

DAQlink4 System Features:

  • Cutting-Edge Performance
  • 1 to 24 channels per seismograph node
  • High-Speed 24bit ADC – up to 64,000 sps
  • Wide Bandwidth – DC to 20 KHz
  • Low Distortion – 0.00008% THD @ 500 sps
  • Wide Dynamic Range – >124 dB @ 500 sps
  • Low Noise – less 0.2 µV RMS @ 500 sps
  • Multiple Time Synchronization Modes
  • GPS Clock Discipline for Autonomous Recording
  • VHF/UHF Radio for Underground Use
  • Or synchronize multiple DAQlink via cable
  • Multiple Trigger Modes
  • Trigger on hammer switch for shot acquisition
  • Trigger using GPS time for noise monitoring
  • Trigger using LTA and STA for event monitoring
  • Two trigger circuits available, one for standard and a second for low-voltage inputs

Multiple Data Storage Methods

  • 16 Gbytes internal memory card standard
  • External mounted, USB-compatible Memory Plug for data backup and transfer
  • Ethernet connection for fast data transfers and remote data storage

Built-in Ethernet Network

  • Use network to configure seismograph and monitor acquisition
  • Compatible with cables, Wi-Fi and Cellular Data
  • Internal FTP server for external data access

Built-in Acceptance Testing, Instrument Tests:
Distortion, Cross-feed, CMRR, Impulse & Noise
Sensor Tests:
Resistance, Frequency, Damping, Sensitivity



Distributed DAQlink4 System

The Distributed DAQlink4 System is the combination of a standard DAQlink4 Seismograph and internal, high-speed, network extenders. Using inexpensive twisted pair telephone cable, these network extenders will send triggering times and receive seismic data from other DAQlinks. These cable links can send reach 10,000 ft, or three kilometers in length.
The entire system is connected to a computer which controls the seismograph network and stores the acquired seismic data. This computer can be simultaneously providing Quality Control as the project is acquired. The final data files can be stored in SEG-2, SEG-D, SEG-Y, ASCII or MiniSEED format.

DAQlink 4 Seismograph