Seismometers
measure ground movements. Also known as: Seismographs
See Also: Seismic, Seismic Arrays, Seismic Accelerometers, Earthquake, Seismographs, Broadband Seismometers, Geophones
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Seismometer
4211
This seismograph model has been developed for the purpose of fast deployment and installation, for engineering structures seismic control, for application in areas with constant background noise above NLNM level.
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Ocean Bottom Seismometers
Tried and tested on successful deployments all around the globe, ours is the most comprehensive range of cabled and portable ocean bottom instruments available.
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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 electronic mass locking, unlocking and centring, Operating tilt range of ±5° with adjustable feet for off-horizontal installation bases, Low power consumption: 0.75 W from a 10–36 V supply, Stainless steel enclosure, 100 bar / 10 MPa waterproof connector, IP68 - protection against effects of permanent immersion under pressure to 350 m depth


