Trillium Posthole

The Trillium Posthole (PH) 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 ideally suited to uncased, buried installations.

An advanced, internal leveling system allows the unit to operate over a tilt range of +/-5 degrees (+/-10 degrees is also an option). The axis stack is mechanically leveled to ensure that the vertical axis does not couple horizontal noise. The Trillium PH is ideal for local, regional and tele-seismic studies having a response flat to velocity from 120 seconds to 150 Hz and a self noise below the NLNM at 100 seconds. Operators will appreciate the low power consumption, remote mass centering and robust no-mass lock design inherent in all Trillium seismometers.



BENEFITS :

  • Automatic leveling can be remotely initiated to correct leveling of up to +/- 5 degrees (+/-10 degrees is also an option), simplifying down-hole installations
  • 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
  • The down-hole design includes a 5.6 inch diameter casing, single marine grade connector and a centered attachment eye bolt on the top surface
  • Low power consumption of 560mw minimizes power source requirements at the site
  • Exceptional self noise below NLNM at 100 seconds is well suited for quiet down-hole installations

PERFORMANCE :

Believe you can and you are halfway there.