AUTO-LEVELING 2000 V-S/M SEISMOMETER WITH 9 DEGREE TILT RANGE
Nanometrics’ industry-leading portfolio of Trillium seismometers includes a posthole variant that is revolutionizing the way seismologists deploy instruments and collect seismic data.
Reliability, repeatability, outstanding performance
The Trillium Posthole Seismometer is a very broadband seismometer designed for down-hole deployments. The instrument is housed in a stainless steel enclosure incorporating a high-pressure, marine-grade connector making it suitable for uncased buried/posthole installations. An advanced levelling system reorients the internal seismometer mechanism to true vertical, correcting for installations tilted up to ±9 degrees.
Local, regional & teleseismic studies
The Trillium PH is ideal for local, regional and teleseismic studies having a response flat to velocity from 120 seconds to 150 Hz and exceptionally low self-noise. Operators will appreciate the low power consumption, automatic mass centering and robust no-mass lock design inherent in all Trillium seismometers.
A highly integrated station solution
When using the Trillium 120 PH with our popular Centaur digitizer, you’ll have access to a digital leveling bubble through the Centaur GUI. The virtual leveling bubble makes for easy leveling down a dark hole, or once buried, gives you the ability to check levelness at any time.
Benefits
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The ability to get beneath the noise, even in urban environments, and keep your assets secure.
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Automatic leveling can be remotely initiated for corrections of up to ±9 degrees, simplifying down-hole installation.
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The axis stack is mechanically leveled to ensure that the vertical axis does
not couple horizontal noise. -
A robust, waterproof, stainless steel enclosure ensures the sensor is
protected from hostile environments. -
Cylindrical down-hole design facilitates buried deployments.
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Low power consumption minimizes power source requirements at the site.
Also available:
- Trillium 120 Posthole ±5 degree tilt models, Trillium 120 Borehole and Trillium Horizon for vault or shallow direct bury with 1200 V-s/m or 2000 V-s/m sensitivity
Polar Certified Model available for
operating temperatures down to -50°C