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 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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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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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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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 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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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 Triggers
Offers a powerhouse of strong features for shutdown of industrial devices at the onset of a strong earthquake.
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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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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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Pioneer Seismic Cabinet
The Pioneer rack is the cornerstone of our broadcast cabinet line, offering flexibility and strength. With a weight capacity of 2,000 lbs., Pioneer’s heavy-duty frame is designed with cross braces interlocked and welded into the corner post.
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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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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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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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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 Sensor
SmartPhone D
Teledyne Marine Real Time Systems
The highly rugged encapsulated SmartPhone D was designed for use with the SmartSource controller, or SmartPhone D system, for real-time monitoring of near-field signatures.
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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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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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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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Sparse Nodal Solution
MicrOBS
MicrOBSNT is an ocean bottom node solution for seismic refraction and reflection surveys.
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GEOPHYSICS, SEISMIC, and ATMOSPHERICS RESEARCH RECEIVER
Type RAS-1
Called the RAS-1, the receiver is designed for ultra low and very low frequency scientific research work, including the exploration of low frequency emissions due to seismic and earth-quake activity, study of atmospheric phenomenon such as "whistlers", and low frequency Sudden Ionospheric Disturbance (SID) and electromagnetics phenomenon. The RAS-1 will receive signals from under 200 Hz. To over 250 KHz in both narrow bandwidth modes as well as broad badnwidth reception.
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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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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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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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Minimus Digitisers
Minimus digitisers offer advanced 'smart' 24-bit seismic ADC conversion and are packed with a host of features that make them the ideal 'plug-and-play' solution for rapid deployments and multi-scale networked arrays.
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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
1500LL
Excellent low frequency content. Using heavy-duty cluster spreader bars cluster elements in excess of 1,000 cubic inches possible without sacrificing peak output
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Miniature
Columbia Research Laboratories
This group is made up of the 6000 and 7000 Series Accelerometers. The 6000 Series offers detachable cables and connector assemblies, a special inverted seismic element for mechanical isolation and other features normally available only on standard size sensors. The 7000 Series are true "shear-mode" design accelerometers which offer performance characteristics and accuracies normally only available with standard size accelerometers. High temperature models of these series are available and will operate to +500°F. For best performance use with Columbia Model 4601 Charge Amplifier or Model 5810 Inline Charge Converter.
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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.
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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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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.
