DAQlink4 is the fourth generation of portable seismograph systems. 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.

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

Built-in Ethernet Network

Built-in Acceptance Testing

Operation Modes:

Operate as Stand-Alone Seismograph

Use a sledgehammer and hammer switch

Small, lightweight unit for small, fast crews

Operate as an Acquisition System

Use a vibrator and Force 3 controller

Network a computer to Monitor Acquisition,
Quality Control Data, and Store Shot Records

Passive Monitoring

True Continuous Recording

Use Cellular Modem for Remote Data Collection

Works with surface or downhole sensors

Automated Event Detection

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.

Distributed DAQlink 4

Large Projects

Small Crews

DAQlink 4 Seismograph

 DAQlink4 is the fourth generation unit from the Seismic Source Acquisition Series.
  The system can be configured as a stand-alone monitoring system, a refraction system or a distributed seismic reflection system.
  The DAQlink4 is a true continuous recorder, and is perfect for acquiring passive data.

Expandability and Flexibility