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The Dytran accelerometer model 3191A is a 5V/g seismic accelerometer ideal for low level, low frequency vibration measurements. The 3191A can measure frequencies down to 0.1 Hz and can resolve vibrations as low as .00007 g's RMS. This seismic sensor has a rugged MIL 2-pin connector, is hermetically sealed, and features all stainless steel construction. The 3191A can accept an Immersion Proof boot for all weather conditions. This sensor is also available in 10V/g as the 3191A1. To learn more about the 3191A and 3191A1, please visit the Dytran website or email us.
Key Features
- Top MIL 2-pin robust connector
- 5V/g or 10V/g sensitivity
- Excellent low frequency response
- Low noise electronics
- All stainless steel construction
- Hermetically sealed
Potential Applications
- Seismic measurements of bridges, buildings, and other large civic structures
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Combine a supersensitive piezoelectric accelerometer, an ultra low-noise amplifier, excellent electrical/mechanical isolation, and the result will be unmatched performance in measuring low-level vibration.
The 731A ultra-quiet seismic accelerometer can measure vibration levels down to the sub micro-g range by using an ultra low noise internal amplifier and a high sensitivity inertial sensing element. It contains no moving parts, is not sensitive to magnetic fields, and has a relatively low mass.
The P31 amplifier enhances the capabilities of the 731A by providing special low noise signal amplification and conditioning by providing 2.4mA constant current needed to power the accelerometer’s internal amplifier.
Some common applications include: earthquake detection, geophysics, geothermal development, structural analysis and mine safety.
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MYGALE Seismic detector
Border areas and a large number of sensitive sites now need totally discrete or buried, reliable and inexpensive detection equipment. Martec Serpe-Iesm has extended its range of intrusion detectors with its new multi-terminal sensor MYGALE.
Based on ground vibration detection techniques, this sensor, comprised of four seismic detection units comprising geophones and a local acquisition unit, allows optimum adaptation to the layout of the installation site.
The seismic units are connected to the acquisition unit by cables. Two additional inputs for dry contacts are also provided. The technologies employed by Martec Serpe-Iesm reduce environmental disturbances to a minimum and guarantee, for each seismic unit, the best detection performance possible within a radius of 10 to 30 metres depending on the type of land.
The seismic detection units can be deployed on different types of ground (soil, concrete, asphalt, etc.), spread out over an area or in a line along the outer perimeter to be protected. The ground vibrations created by an individual attempting to cross the protected space are transmitted to the local acquisition unit. This unit carries out the necessary processing operations to analyse the measurements and set off the alarm.
The sensor network enables linear deployment over a distance of 5,000 metres, of a system of detection which combines efficiency, stealth, and localisation of the alarm.
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Originally designed specifically for the U.S. Geological Survey, this sensor provides ultra-low frequency and ultra-low noise with very high output.
The Model 1030 is ideal for making high resolution structural and floor vibration measurements for sensitive equipment such as electron microscopes, micro-lithography for semiconductor fabrication, micro-machining and more. It includes a removable 1/4-28 mounting stud.
Approx. Size : 2.5" x 2" flats
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