Sensing for Seismic & Earthquake

System Overview

Güralp Systems, Ltd manufactures seismic instruments and provide complete turnkey seismic solutions for increasing understanding, optimising processes and protecting people, assets and the environment. Güralp seismic instrumentation are used in a wide range of applications.

 Applications:

  • Oil & Gas
  • Earthquake Monitoring
  • Volcano Monitoring
  • Aftershocks Monitoring
  • Energy
  • Civil Geotechnical Monitoring
  • Structural Health Monitoring
  • Early Warning Systems
  • Other monitoring systems such as Perimeter Security

Overview of Güralp Seismic Monitoring System:

  1. Seismic Monitoring Setup based on Standard Seismic Sensor
    Standard seismic setup_26Jul2016
  2. Seismic Monitoring Setup based on Digital Seismic Sensor

Seismic Sensor - Seismometers

Very Broadband Seismometers (Güralp 3 series model)

  • Portable, Borehole or vault versions
  • Triaxial orthogonal (Z, N and E axis)
  • Force feedback broadband seismometer
  • Measurement range: 13 mm/s (other options available)
  • Frequency Response: 120 s – 50 Hz standard (other options available)
  • Digital output and communication versions available

Detail

Posthole/Borehole Slim-size Digital Seismometer (Güralp Radian model)

  • Triaxial orthogonal (Z, N and E axis)
  • Force feedback
  • Seismometer output: Velocity or Acceleration (configurable)
  • Seismometer measurement range: velocity 20mm/s ; acceleration 0.1 m/s2 (other options available)
  • Frequency Response: 0.0083 to 200 Hz (other options available)
  • Designed for quick deployment, operational at any angle, with Bluetooth connectivity
  • Integrated broadband seismometer, accelerometer and magnetometer as standard

Detail

Medium motion Portable Seismometer (Güralp 6 series model)

  • Triaxial orthogonal (Z, N and E axis)
  • Force feedback
  • Measurement Range: 17 mm/s (other options available)
  • Frequency Response: 10 s – 100 Hz or 30 s to 100 Hz (other options available)
  • Digital output and communication versions available

Detail

Medium motion Rugged Seisometer (Güralp 40 series)

  • Triaxial orthogonal (Z, N and E axis)
  • Force feedback
  • Measurement Range: 50 mm/s (other options available)
  • Frequency Response: 30 s to 50 Hz standard (other options available)
    Digital output and communication versions available

Detail

Ocean Bottom Seismometers (OBS)

  • Full autonomous operation or real time cabled systems.
  • Suitable for depths up to 6,000 metres.
  • For temporary or permanent installations.
  • Frequency response: 360s – 50Hz (weak motion), 60s – 200Hz (medium motion) and/or DC – 100Hz (strong motion)
  • All OBS systems are fitted with a magnetometer to determine instrument orientation at depth
  • Option to incorporate differential pressure gauges (DPGs) or absolute pressure gauges (APGs) for applications such as tsunami early warning systems
Detail

Seismic Sensor - Accelerometers

Strong motion Accelerometers (Güralp 5 series model)

  • Portable, Borehole or vault versions
  • Triaxial orthogonal (Z, N and E axis)
  • Force feedback
  • Measurement range: 4 g, 2 g, 1 g, 0.5 g or 0.1 g (Other options available)
  • Frequency Response: DC – 100 Hz (Other options available)
  • Digital output and communication versions available

Detail

Small-size Strong motion Accelerometers, with Switchable Gain (Güralp Fortis model)

  • Triaxial orthogonal (Z, N and E axis)
  • Force feedback
  • Measurement range (via gain switch): 4 g, 2 g, 1 g or 0.5 g
  • Frequency Response: DC – 100Hz (Other options available)
  • Digital output and communication versions available
Detail

Seismic Data Acquisition Systems

Multi-Channel Data Acquisition, with removable or built-in large data memory storage, are used to record the vibration signal detected or measured by our Seismic Sensors for monitoring, post-processing data analysis.

We provide a range of multi-channel data acquisition modules with large memory storage, low noise, wide dynamic range and low power consumption. With extended functionality, the data acquisition module can process and act upon incoming vibration data internally.

Ultra-Compact, Portable Digitiser (Güralp Minimus model)

  • No. of channels: 4
  • Resolution: 24-bits
  • Sampling rate: 1 sample/per hour to 5,000 samples/per sec (user-selectable)
  • Data storage: microSD Flash card
  • GPS supported
  • Communication interface: Ethernet, Bluetooth, RS232, USB

Detail

Portable Digitiser (Güralp Affinity model)

  • No. of channels: 8 (6 primary and 2 auxiliary)
  • Resolution: 24-bits
  • Sampling rate: 1 to 4,000 samples/per second (user-selectable)
  • Data storage: at least 16GB USB storage
  • GPS supported
  • Communication interface: Ethernet, RS232, USB

Detail

Portable Digitiser (Güralp CD24 model)

  • No. of channels: 3
  • Resolution: 24-bits
  • Sampling rate: 1 to 1,000 samples/per second (user-selectable)
  • Data storage: up to 256GB on-board flash memory
  • GPS supported
  • Communication interface: Ethernet, USB

Detail

Portable Digitiser (Güralp DM24 model)

  • No. of channels: 4 (3 primary and 1 auxiliary) or; 7 (6 primary and 1 auxiliary)
  • Resolution: 24-bits
  • Sampling rate: 1 to 1,000 samples/per second (user-selectable)
  • Data storage: at least 16GB USB
  • GPS supported
  • Communication interface: Ethernet, RS232, USB
  • Available in stainless steel or Pelican casing

Detail

Data-centre unit for Network Data Acquisition (Güralp NAM model)

  • Central data hub for seismic installation sites, supporting all Guralp Portable Digitisers
  • Operating system: Linux
  • Communication interface: Ethernet, Serial
  • Memory storage: Solid State Disk, NAS
  • Seismic network protocols: Scream!, SEEDlink, CD1.1 and GDI
Detail

Seismic Data Acquisition Software / Software Utilities

Güralp provide a number of software applications to control and configure our seismic sensors and data acquisition system and to view and analyse seismic data.

We also provide a range of software utilities to help with protocol conversion and common data management tasks. For details of these utilities, please see the Software Support page.