Welcome To Seismic Source Company

Seismic Source Company is a manufacturer of seismic instruments and data acquisition systems. Its products are used in a broad range of applications: Seismology, Structural Monitoring, Seismic Site Evaluation, Civil Engineering, Gas and Oil Exploration, Industrial Vibration Monitoring.

Products

daqlink4
High Resolution Seismic Recording System

with High Speed, Compact Size & Low Power

 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

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

 

DAQlink4

daq4 24

 24 Channel Seismograph

 

 

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

Continuously record and store data
Use LTA (Long Term Average) or STA (Short Term Average) to detect events
Includes automatic email notifications as events are located
 

distributed daqlink4


distributed daqlink4

Multiple Node System

daqlink4

Downhole Data Acquisition

 

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.

 

daq4 24d

Distributed DAQlink 4

 

daqlink4

Large Projects

daqlink4

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


 
 rtm3

 All DAQlink4 seismographs are compatible with the entire line of Seismic Source Co source control electronics. This includes the Force3 Vibroseis controller, the Boom Box 3 dynamite synchronizer and the RTM3 remote trigger module. DAQlink nodes are also compatible with the Universal Encoder 2. Use the UE2 for precise source operation.

 force3

Includes VibraScope Software:

distributed daqlink4

  Functions:
Configures DAQlink4 for Acquisition
Monitors Seismograph Operation
Offloads and Evaluates Data
  Features:
Data Display
Analysis – Amplitude & Phase Spectra
RMS Noise and Signal Graphs
  Expansion:
For larger systems, DAQlink4 seismographs are compatible with the full line of iSeis Sigma Field Software, including SourceLink & Sigma Observer.

DAQlink4 Specifications:
Electrical:
 

A/D

 

24 bit sigma delta converter

 

Anti-Alias Filters

 

85% of Nyquist frequency

 

Low Cut Filter

 

User Selectable from 0.001 Hz to 120 Hz

 

Filter Type

 

Linear Phase

 

Sample Rates

 

125 to 64,000 sps

 

PreAmp Gain

 

x1 (0 dB) and x16 (24 dB)

 

Max Input Voltage

 

±3.7 Volts @ x1 Gain

 

Bandwidth

 

DC to 20 kHz

 

Power Usage

 

Typically 0.13 watts per channel

 

Input Impedance

 

100k Ohms

 

Clock Sync

 

GPS or VHF Radio

 

Power Supply

 

10-28 VDC

Physical:
 

Number of Channels

 

24

 

Temperature

 

-40°C to +85°C

 

Humidity

 

0 to 100%

 

Size

 

11.0" x 9.7" x 1.6" (280 x 246 x 40 mm)

 

Weight

 

4.5 lbs (2.0 kg)

 

Data Storage (Internal 16GB CF)

 

120 hours (24 channels @ 500 sps)

 

Data Storage (on Computer)

 

Unlimited

 

Data Storage (External USB)

 

Unlimited

 

Data Format

 

SEG-2, SEG-D, SEG-Y, ASCII, MiniSEED

 

LEDs

 

Network, Status, Battery

Performance @ 500sps:
 

Trigger Accuracy

 

±1µs

 

Dynamic Range

 

Better than 124 dB

 

THD

 

0.00008 %

 

Crosstalk

 

Better than -125 dB

 

Common Mode Rejection Ratio

 

Better than 100 dB

 

Noise Floor

 

< 0.2 µV RMS @500sps

Connectors:
 

Computer Network

 

10-pin Weatherproof

 

GPS

 

6-pin Weatherproof

 

Trigger

 

3-pin Weatherproof

 

Power

 

2-pin Weatherproof

 

Auxiliary Data

 

14-pin Weatherproof

 

USB Memory

 

19-pin Weatherproof

 

Seismic Data

 

55-pin Weatherproof

Downloads:

  Distributed DAQLink4 Brochure Download DAQLink 4 Brochure

Seismic Source Co

2391 E. Coleman Rd.
Ponca City, OK 74604
Phone: (580) 762-8233
Fax: (580) 762-1785
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