Showing recent results 1 - 11 of 11 products found.
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Güralp Systems Ltd
Our borehole instruments can house both seismometer and accelerometer sensors or a combination of the two. They can also be strung together for vertical seismic profiling (VSP).
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ROGA-Instruments
ROGA-Instruments provides a broad range of accelerometers for General applications, Seismic measurements, High acceleration and shock, Light test objects, Triaxial measurements and Industrial applications.
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ZETLAB Company
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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Metra Mess- und Frequenztechnik in Radebeul e.K.
The piezoelectric accelerometers on this page are intended for the measurement of lowest vibrations. Typical fields of application include the monitoring of buildings, dams, bridges, oil platforms and pipelines. These sensors are often called seismic accelerometers because they are used to monitor construction activity, volcanoes and earthquakes. Their high sensitivity is achieved -unlike other high sensitivity accelerometers- by the sensing element itself and not by internal amplification. From this results highest resolution and lowest noise.
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PA-23, PA-23BH, S-230 - Geotech Instruments, llc
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.
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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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BC 1313 TRIAXIAL SEISMOGRAPH - ZETLAB Company
BC 1313 piezoelectric seismographs are intended to convert vibration parameters to a proportional electrical signal. Measurements are carried out for 3 mutually perpendicular axes X, Y, and Z at a time. 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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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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Columbia Research Laboratories
Columbia Research Labs line of Force Balance Linear Accelerometers offers low cost, high performance, general purpose single axis accelerometers that are ideal for DC and low frequency measurements, with both voltage and current signal outputs available. Also offered are Columbia's Solid State Sensors and our specialized Airborne Sensors that generate outputs specifically designed to operate from +24 to +32VDC aircraft power, that is excellent for airborne telemetry applications. And our Low Noise Sensors are designed for use in seismic, low level, low frequency motion studies.
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Güralp Systems Ltd
Aquarius is a stand-alone free fall OBS with acoustic data telemetry for deployments at depths of up to 6000m for up to 18 months duration.The system is available in two variants depending on the application and required timescales between battery charge.Aquarius - for seismic research, when data transfer is needed only at the installation and at the recovery of the OBSAquarius+ - for seismic research and alert, when data transfer is required either on trigger, or on demand at any point during the deployment windowBoth systems are equipped with a digital feedback tri-axial broadband seismometer, operational at any angle and with a configurable long-period corner. A three-axis magnetometer and a MEMS accelerometer record the seismometer’s 3D position on the seabed for data rotation during post-processing.
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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.
