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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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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Automation
Signal Filtration
Signal Filtration is used for filtering signals coming to the input channels of spectrum analyzers, strain-gauge stations, and seismic stations, for further processing by ZETLAB programs. Signal Filtration can also be used for processing virtual channels created by such programs as Vibration Meter, Strain-Gauge Sensor, etc. Signal Filtration operates with signals both in real time and with reproduced of recorded signals.
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Software Package for ZET 048 Seismic Station
ZETLAB SEISMO —
ZETLAB SEISMO Software is included into the delivery scope of ZET 048 seismic recorders. The software and hardware package allows to perform measurements immediately upon measuring instruments connection and drivers installation completion.
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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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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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Seismic Acquistion QC Serivices
Overall data quality / cost monitoring / safety / daily reporting to client. Verif-i provides technical and operational programme assurances for seismic surveys conducted for the company. The lead acquisition QC on-board/on-crew the seismic vessel/block accepts or rejects data on behalf of the company. Our representative will assist the contractor in fulfilling the technical and operational requirements of the seismic programme and report on crew activities.
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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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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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MASW Seismography For City Engineering
WZG-6B/12A
WZG-6A/12A seismic survey system is a 24-bit wave velocity tester, under Windows Operation System, based on WZG-24 engineering seismograph. It features multiple function, high precision, high speed, high reliability and fine expansibility.
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Services
Device Manager
ZET Device Manager provides the user with detailed information about all connected ZET devices (spectrum analyzers, strain-gauge stations, seismic stations, ADC/DAC boards, digital sensors).
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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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Seismic Triggers
Offers a powerhouse of strong features for shutdown of industrial devices at the onset of a strong earthquake.
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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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Seismic interpretation Software
Visual-Sunt
This program is a graphical interface for Windows® of the SUNT program, the 32 bits Windows® version of the SU (Seismic UNIX) freeware, the software for the data processing of “Centre of Wave Phenomena”.
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Seismic Transducers Calibration System
Calibration of the seismic sensors should be conducted in the low-frequency domain, which means, that the relative method used for calibration of the vibration transducers is not applicable since it does not guarantee the required accuracy level. The problem is that the reference accelerometers have uneven AFR characteristic in the low-frequency domain. Thus, calibration of seismic transducers requires implementation of a different approach.
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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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Networked Seismic Recording System
DAQlink5
DAQlink 5 is the fifth 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.
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High-performance Impulsive Source
G-SOURCE II
G-SOURCE II is the most advanced impulsive source of its class, bringing high performance in the toughest conditions. Its compact size, easy adaptability and strong performance through a higher peak amplitude than any conventional impulsive source, make it perfect for any advanced marine seismic survey.
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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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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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Soil Mechanics
VERCAM
VERCAM is a program for the analysis and design of retaining, gravity and in concrete walls; which can evaluate the maximum safety factors both under normal and seismic conditions. The programme can automatically calculate the reinforcement bar dimensions and their position as well as verify the corresponding stress in the materials for reinforced concrete barriers.
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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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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 inerti...show more -
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Seismometers
3T-120 Pothole
120 s to 50 Hz frequency response (option to 100 Hz), 1500 V/ms-1 (2 x 750 V/ms-1) sensitivity, Covers the complete seismic spectrum with a single transfer function, Measured Self noise below the USGS NLNM from 166 s (0.006 Hz), remaining below the high frequency limit of the NLNM at 10 Hz, High linearity: >111 dB (USGS figures), Dynamic range of 167 dB at 1 Hz (Full octave width across 1 Hz), Cross axis rejection over 65 dB; sensor axes orthogonal to within ±0.05°, Remote, automatic electron...show more -
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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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Signal Analysis
Modal Analysis
Modal Analysis is used for analyzing pulse and transition characteristics of signals coming from the input channels of FFT spectrum analyzers and seismic stations in real time or recorded time realization view mode.
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Seabed Nodal Solution
GPR
GPRNT is an innovative seabed nodal solution based on Sercel’s leading-edge QuietSeis® technology meeting the very latest seismic industry expectations for performance. The unrivalled digital fidelity and ultra-quiet performance provided by the QuietSeis MEMS sensor ensure a step change in seismic data quality.