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 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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Analog Seismic Sensors
Seismometers
Designed to yield the performance needed for scientific studies, our seismometers are used for monitoring long period (very low frequency) signals. These units are often used for earthquake monitoring and for triggering potential alerts during natural disasters such as tsunamis.
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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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Seismic Vibration
Seismic vibration instrumentation is used to measure structural vibration on bearing housings, piping, machinery housings, and machine support structures. It is particularly suitable for machinery with rolling-element bearings. These types of bearings will generally transmit both shaft-and bearing-related vibration to the outside of the machine where it can be detected by seismic measurements.
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Marine Seismic Systems Analysis Software Suite
Testif-i Marine
Testif-i Marine is a comprehensive software suite designed specifically to process test data from marine acquisition systems to ensure the integrity of your recorded data.
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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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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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High-Resolution 3D Seismic Solution
PIKSEL
PIKSEL is an integrated and compact solution that enables high-resolution seismic data acquisition in targeted areas for offshore construction and field development.
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Seismic interpretation Software
Intersism
Intersism it's a software designed to make the entire processing of seismic data coming from a refraction seismic method acquisition. The software extract data directly from the file SEG2 format, SEGY or SU - and give you the possibility to put directly the first arrival picking time.
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Seismic Analysis and Monitoring
Seismic analysis and monitoring have been designed on the base of the contemporary seismic studies. We can offer you a wide range of tools for geophysical surveys, seismic tomography, automated monitoring of bearing structures (structural health monitoring), seismic monitoring of oil piping systems.
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Affinity Digitiser
The Güralp Affinity is a high-fidelity integrated digitiser and network communications unit that provides a convenient and expandable way of connecting analogue and digital seismic instruments to your network.
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New Generation Marine Seismic Recorder
Seal 428
The Seal 428 is the new large capacity and high-resolution seismic data acquisition system designed for marine towed streamers acquisition. It derives its high reliability and versatility from SERCEL’s extensive experience in cable telemetry systems and from the use of the most advanced electronics and workstation technology.
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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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Seismic interpretation Software Winsism
Winsism
WinSism enables all typical operations for refraction processing including: first break picking, trace phantoming, true velocity, velocity computation, intercept time method, delay method, GRM method. It can also import all usual seismic file format as well as export in raster or vector output.
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Seabed Positioning System
GeoTag
GeoTag is the new acoustic positioning system from Sercel designed to work with any ocean bottom or transition zone seismic equipment down to 500 meters deep. GeoTag is the smallest acoustic transponder on the market, allowing flexible and cost effective operations due to its ability to be stored on a reel and deployed by mechanical squirter.
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Piezoelectric
Columbia Research Laboratories
The Columbia product line of piezoelectric accelerometers is widely known for reliable performance, quality and ruggedness and is always expanding to meet the unique challenging and ever changing requirements of our customers. The selection of specifications, sizes and configurations is large and diverse and suitable for use on many applications requiring features such as, high performance, high accuracy, high temperature, seismic event, 4-20mA output, airborne, miniature size and general purpose use.
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Seismic Signal Conditioners
Seismic signal conditioners are designed to accept an input from (and provide power to) a seismic sensor. They convert the signal to a proportional 4-20mA DC signal that can be used as an input to process control instrumentation such as a PLC or DCS. They provide additional convenience features such as optional displays, BNC connectors for access to the dynamic sensor signal, and bandpass filtering. Metrix offers seismic signal conditioners that can accept either acceleration or velocity sensors, and are available with or without an integral display.
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Environmental Simulation Testing
MET's Environmental Simulation Labs, on both coasts, employ numerous environmental chambers, including several large walk-in chambers. Hydraulic and electro-dynamic shakers are used for a wide range of vibration testing, from ISTA packaging to seismic compliance testing. MET's hydraulic vibration systems are capable of full level (Zone 4) seismic simulation.
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Vibrators Electronics
VE464
The VE464 benefits from the latest developments in integration, radio transmission and servocontrol, allowing easier implementation of vibroseis seismic than ever before, even for advanced types of acquisition. Used in conjunction with the 428XL or 508XT acquisition system, the VE464 is a key component in achieving very high level of productivity.
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Seismometers
3ESPC Series
The Güralp 3ESPC is a proven weak-motion triaxial broadband seismometer for the price and size of a medium-motion instrument.Ideally suited for long-term temporary and permanent installations in areas with low to moderate noise levels. The instruments' broadband response and low self-noise level make it suitable for seismic monitoring at all scales: local, regional and teleseismic.
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Triaxal Seismograph
BC 1313 TRIAXIAL SEISMOGRAPH
BC 1313 seismographs are seismic accelerometers, the parameter measured – vibration acceleration. For BC 1313 seismic transducers, the system is provided for sensing element electrical stimulation using an actuator to determine conversion ratio true value during periodic recalibration without dismantling. Power check system is also allowed for in BC 1313 seismographs.
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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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Seismic Detection System
For the purpose of increased reliability and unification, the seismic detection system is delivered as a standard kit placed inside of the compact leak-proof casing.
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Slip Table Assembly
CSTA Series
Unholtz-Dickie introduced the Combined Slip Table Assembly (CSTA) in the late 1960''s to meet the demand for positive mechanical alignment between the shaker and its companion horizontal slip table. The challenge was to achieve this positive, permanent alignment feature without requiring an expensive seismic mass in the vibration lab floor. The original CSTA design has been continuously improved over the years and has now become the industry standard for permanently aligned, integral reaction mass slip tables.
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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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Seismic interpretation Software
GeoTomCG
GeoTomCG can process crosshole or VSP seismic or radar data. The display shows calculated radar velocities. High velocity zone at depth of 27 m is caused by an abandoned mine. Other zones of contrasting velocities are geological features. S and R indicate source and receiver positions, respectively.
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AGH Hydrophones
Teledyne Marine AG Geophysical Products
Primarily used with seismic source firing and control systems where the hydrophone is operating in close proximity to, or in the high pressure explosive force field of a seismic source.
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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.
