Seismic Accelerometers
sense ground vibration.
See Also: Seismic, Seismometers, Seismic Arrays, Earthquake
- TEAM SOLUTIONS, INC.
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Dual-Axis Accelerometer For HS3/4/4-DIFF Handyscopes, +/- 5G
TP-ACC50-25
The Accelerometer is a low cost, low power, complete dual-axis accelerometer with signal conditioned voltage outputs. The output signals are analog voltage proportional to acceleration. The Accelerometer is capable of measuring both positive and negative accelerations to at least �+/- 5G.
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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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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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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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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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Linear Accelerometers
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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Digital Magnetic Compass
SeaTRAX
The SeaTRAX with PNI’s high sensitivity magnetometers and accelerometers is a COTS high- performance heading sensor for seismic streamers and towed arrays.
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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...show more -
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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.
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Accelerometers
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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High Sensitivity Accelerometers
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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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 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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Accelerometers
Monitran General Purpose Analysis Sensors are ideal for use with portable and on-line vibration analysers, providing the user with a complete spectrum of vibration intensity against frequency. Changes in this spectrum allow the user to determine the health of the machinery to which the sensor is attached. Most analysers will store the spectral values and monitor changes over a period of time, allowing prediction of expected component life and enabling efficient planning of maintenance schedules.
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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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Accelerometer
DC4-20mA
Small size, light weightAlarm controller is not necessaryVaried lineup according to field environment●IP68(Perfect waterproof, the depth of water 100m, 10 bar)●Direct pull out Max. 1 km●Waterproof connector
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Quantum Accelerometer
A quantum accelerometer uses atom interferometry to measure accelerations along a horizontal axis. Quantum accelerometers are able to achieve a combination of sensitivity and stability by exploiting quantum interference. As such, they will be critical components of a quantum inertial navigation unit, which will offer satellite-free navigation with unparalleled long-term accuracy. A phase locked SolsTiS system underpins this setup and provides the extremely low phase noise required to make high sensitivity measurements and dynamic frequency tunability to address multiple atomic transitions.
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Accelerometers
Analog Devices accelerometers and iSensor® MEMS accelerometer subsystems provide accurate detection while measuring acceleration, tilt, shock, and vibration in performance driven application. Our portfolio leads the industry in power, noise, bandwidth, and temperature specifications, and offers a range of MEMS sensor and signal conditioning integration on chip. Our MEMS-based Circuits from the Lab® reference designs have been built and tested by ADI experts to help you jumpstart your next system design.
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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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Triaxial Accelerometers
Metra Mess- und Frequenztechnik in Radebeul e.K.
Triaxial accelerometers are intended for simultaneous measurement of vibration in 3 perpendicular axis. All models have a central drilling for easy screw attachment and convenient axis alignment.
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Gyros & Accelerometers
Aero Engineering Support Group
Litton, Delco, Smith, Honeywell, Collins, Allied Signal, Bendix, Rate Gyro, Vertical, Gyro, Directional Gyro, Accelerometers.
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Accelerometers
An accelerometer is used in manufacturing machine maintenance to inspect equipment vibration. An accelerometer also is used in product testing to measure the vibration of various components.A triaxial accelerometer, also called a 3-axis accelerometer, provides measurements of the following parameters: vibration acceleration, vibration velocity and vibration displacement. In this way, vibration is measured and recorded with great precision.Most accelerometer products offered by PCE Instruments ar...show more -
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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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Accelerometers
353B15
Sensitivity: (10 %);10 mV/g 1.02 mV/(m/s) Measurement Range:500 g pk 4905 m/s pk Frequency Range:(5 %)1 to 10000 Hz1 to 10000 Hz Frequency Range:(10 %)0.7 to 18000 Hz 0.7 to 18000 Hz Frequency Range: (3 dB)0.35 to 30000 Hz0.35 to 30000 Hz Resonant Frequency:70 kHz,70 kHz Broadband Resolution (1)0.005 g rms0.05 m/s rmsNon-Linearity:1 %1 % Transverse Sensitivity:5 %5 %
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Miniature Triaxial Accelerometers
Miniature triaxial accelerometers are available in a variety of sensitivities to suit specific application requirements. These small and lightweight units have a high frequency response and minimize mass loading on test structures. They are ideal for installation in space restricted locations
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Digital Accelerometer
ZET 7151
The characteristics of the primary transducer are set in the device memory and measurements are performed based on those parameters. Thus, the digital sensors releases the user from setting the measuring channels and data processing. The sensors are fixed on the measurement object while the information transmission units are mounted in electric cabinets. An advantage of the ZETSENSOR units is easy installation and uninstallation as well as indication of feed and signal transmission which, in its turn, facilitates diagnostics of the system at the facility.
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MEMS Accelerometer
SQ-XLD
The acceleration sensor module performs calibrated acceleration measurement with digital serial output. Using a USB or RS232 interface cable (sold separately), it functions as a self contained data acquisition system for 2 axis or 3 axis acceleration, tilt, and vibration measurement.
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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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Servo type Accelerometer
A motion is sensed by a displacement detector, a current is fed to the coil to get back the pendulum mass to the original position. This current will be proportional to the acceleration, that is converted to an output voltage. The Servo type accelerometer is for the Earthquake Monitoring or measurements of micro tremor on the Civil Engineering Structures because of its higher sensitivity and stability or more accurate phase responses in the lower frequency range than those of other vibration transducers.
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Accelerometers
Accelerometers measure linear acceleration. They can be also used for specific purposes such as inclination and vibration measurement. MEMS accelerometers embed several useful features for motion and acceleration detection, including free-fall, wakeup, single/double-tap recognition, activity/inactivity detection and 6D/4D orientation.
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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.