Seismic
earthquaking event with a wave velocity 3-8 km/s.
See Also: Seismometers, Seismic Arrays, Seismic Accelerometers, Earthquake, Geophones, Shear Wave, Wave
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Seismic Triggers
Offers a powerhouse of strong features for shutdown of industrial devices at the onset of a strong earthquake.
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Very Broadband Borehole Systems
Borehole installations offer excellent performance for low-noise detection of weak seismic signals such as from local microseismic events or from regional/teleseismic earthquakes.
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Transmitters
Seismic transmitters provide a 4-20mA DC signal output proportional to the vibration amplitude, and are ideal for applications where a PLC, DCS, or other automation system will be used instead of a stand-alone vibration monitor. Metrix offers seismic transmitters with a wide variety operating temperatures, frequency responses, scale factors, case materials, connector types, mounting options, and hazardous area approvals.
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Seismograph
DX6
The DX6 is a 6 channel seismograph that can be used for almost any seismic project. With its internal memory, optional USB memory and GPS, the flexible DX6 node can be deployed anywhere, at any time.
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Seismic Digitizers / Recorders
SMART Series
The SMART Series of instruments represent the logical solution for seismological data acquisition: a common design for a digitizer, portable recorder, and strong motion recorder(the all-in-one solution).
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Transition Zone Acquisition
508XT
508XT extends its capabilities to marsh and transition zone seismic surveys by providing a dedicated solution for this challenging environment. The new equipment addresses the tough constraints of operating in shallow water areas with a reinforced breaking strength to 300 daN and a waterproofed capability of up to 25m.
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Radio Trigger Module
RTM3
The Remote Trigger Module 3, or RTM3 3, is a new generation of impact trigger device. It is designed to time synchronize a single seismic source unit with multiple seismic recorders. It can also be used to synchronize multiple seismic recorders. The RTM3 units use an internal high accuracy oscillator that is synchronized to GPS timing information. Each RTM3 unit requires an external GPS receiver with valid satellite information to synchronize the internal clock. Once the internal clock is synchronized the RTM3 can be used without any GPS signal for up to 10 minutes.
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Advanced Seismic Source
GI-SOURCE
Sercel developed the GI-SOURCE to reduce and suppress the bubble oscillation from a single impulsive source to simplify processing. The GI-SOURCE impulsive source is based on the same technology as the GI-SOURCE but is different in that it has two independent air chambers within the same casing : the Generator (generating the primary pulse and creating the main bubble) and the Injector (injecting air inside the main bubble so that it collapses quickly).
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XCITE 1200-2 Inertial Mass Excitation System
The Xcite 1200-2 Inertial Mass Excitation system provides a new dimension to structural testing. The ES-302 Exciter contains a 250 lb mass which is accelerated through a 2″ displacement by a hydraulic actuator. The 2,000 lb inertial force which is generated provides ample input to structures such as those shown below to perform low frequency seismic studies and high frequency rotating equipment analyses.
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Kit for Seismic Research Performance
The kit for seismic research performance is used for performing measurements in various climatic zones. Splash-proof connections GSC-4H (Herma-4) are used for establishing a reliable connection between the geophones within the seismic system.
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Land Nodal Solution
WiNG
WiNGNT is a fully integrated nodal land acquisition system designed with a single data collection platform to manage operations more easily and efficiently. This new nodal solution integrates Sercel’s best performing and most sensitive broadband sensor ever, QuietSeis®, to acquire high precision seismic data.
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Portable Load Cell System
Load Cell is designed by Seismic Source Company to measure the Hold Down weight and the output force of the Servo Hydraulic Vibrator unit. The output of the Load Cells can be recorded with any accurate seismic recording system.
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Seismic Analysis Software
GeoSonics announces our latest software suite. AnalysisNET is the most comprehensive and advanced software for GeoSonics 3000 Series seismograph. The software combines Seismic Analysis and Event Manager software in a single package that employs the .NET framework. AnalysisNET allows easier access to data files provides multiple report combinations and gives you the ability to manage your data.
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Certimus- Surface/Vault
Next generation seismic station with multi-touch sensitive LCD display and Bluetooth.
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48-Channel Seismometer
FlashSeis48
ZZ Resistivity Imaging Pty. Ltd.
48 channel seismic data acquisition system.
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Event Monitoring System
Sigma 4
Sigma 4 utilizes the “Seismic Acoustic Monitoring” seismograph node. This is the most advanced, field-proven acquisition system in the world. It works seamlessly to provide the most fully integrated source control/recorder solution.*Autonomous Operation using Internal Storage*USB External Storage for Fast Data Collection*Use internal battery option or external power connection*Internal 3C geophone or external Geophone/Seismometer/Hydrophone/Microphone*Supports standard Ethernet equipment
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Test Analysis for Land Seismic Systems
Testif-i Land
Testif-i Land is an independent, powerful and cost effective software suite that allows you independently process instruments, source and receiver tests to confirm that the equipment is performing correctly and within specification. The software includes modules to perform comprehensive analysis of vibrator wireline similarity test data. Analysis includes a harmonic intensity plot which can highlight problems such as sub-harmonics which may not be seen on numerical results. Geophone pulse tests can be analysed using the receiver response module and test data from third party geophone testers can be graphed and statistics produced for ease of interpretation.
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Sensors
Seismic sensors provide a dynamic AC signal output in mV/g or mV/in/sec. Devices with this type of output are generally intended for connection to a stand-alone vibration monitoring system rather than general automation and control instrumentation like a PLC or DCS. Metrix offers seismic sensors with a wide variety operating temperatures, frequency responses, scale factors, case materials, connector types, mounting options, and hazardous area approvals.
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Seismic Sensors & Transducers
Displacement Pickups are vibration transducers that incorporate a spring-mass system with eddy-current damping using a frictionless pivot. This pivot is a spring flexure that serves as the ‘spring’ and a moment arm attached to the pivot serves as the ‘mass’, which allows resolutions down to the micro inch range. At frequencies above 50Hz, the mass remains fixed in space and becomes an inertial reference. A transducer within the pickup senses the motion of the mounting base relative to the inertial reference and converts it into a proportional signal. Appropriate damping results in a frequency response flat down to 10 Hz. Note that the pickup senses in only one plane, which is perpendicular to the mounting base.
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Real-Time Seismic Data QC
eSQC-Pro
eSQC-Pro interfaces with acquisition modules for real-time quality control of seismic data without slowing down operations. This add-on hardware and software package provides remote access from any authorized PC through the Internet.
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Horizontal Vibration Test Systems
G-3 Series
This series was used for the special structure of airbearing guide of inspection for Seismic Detectors andcharacterized is large displacement and high-accuracywaveform. In addition, the use of the Windows seismicdetector controller is easy to operate it.
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Long Life Seismic Energy Source
1900LLX-T
Output volume of 10 cubic inches to 250 cubic inches. Light weight enough for shallow draught vesselsPowerful enough for blue water seismic surveys. Available with engineered seals for more robust performance.
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Long Life Serismic Energy Source
2800LLX
Bolt introduced the LONG-LIFE air gun in 1992. Since then it has become the standard energy source for marine seismic exploration.
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Force Balanced Accelerometer
PA-23, PA-23BH, S-230
The Geotech Model S-230 is a high resolution, 1-component, force balanced accelerometer capable of meeting the noise and stability requirements of the most demanding seismic studies. It features a very wide frequency response (DC to 90 Hz) and an internal calibration coil. Three S-230 accelerometers are packaged as a borehole 3-component unit (Model PA-23BH) and as a surface 3-component unit (Model PA-23). PA-23BH can be submerged up to 100 m depth.
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Accelerometers
Columbia Research Laboratories
The force balance accelerometer has a classical critically-damped, second-order frequency response. There is no peaking in the response but simply a smooth roll-off above the natural frequency. This property along with the excellent characteristics of the "HP" torquer design makes Columbia accelerometers the best choice for demanding applications where precise DC and near-DC measurements are needed in demanding shock and wide band vibration environments. Columbia force balance accelerometers are available to cover virtually all applications. Low noise, high output units can be used for seismic structure motion studies while miniature, high range versions are optimum for measuring more violent high G environments encountered in many industrial, aircraft and missile applications.
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Engine Vibration Measurement Unit
MS 1101
Used to check engine vibration level. The seismic transducer mounted on both engines. Used for the measurement of vibration levels for various engine rpm. Used for the measurement of amplitude on each frequency component
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Software
Discovery
A single unified interface to a range of powerful tools for managing your seismic network.
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Bandwidth-Controlled Seismic Source
eSource
Teledyne Bolt, Inc. has engineered a new type of airgun designed to reduce the potential impact of seismic acquisition operations on marine life while also delivering optimal bandwidth for subsurface imaging. eSource is designed to reduce the high-frequency components believed to have most potential for causing disturbance to marine life while retaining the low-frequency components critical to seismic exploration.
