TELLUS BOREHOLE

Tellus BH is a three-component seismometer designed for borehole installation down to 300 m (1000 ft).

Tellus BH can be equipped with one of Lunitek’s velocity sensor: shortband (1 – 5 seconds) or broadband (30-60-120 seconds). All sensors are manufactured using high thermal stability and low noise components. The transduction factor of every single unit is individually calibrated on the shake table with an accuracy within ±1%.

OVERVIEW

Description

Tellus BH short band is equipped with a self-supporting cable thus no additional wire is needed. Broadband version of Tellus BH, which are heavier, are equipped with a fixing point for a wire along with the signal cable.

Tellus BH is manufactured in stainless steel (AISI316) and does not require mass locking or centering.

A passive clamping system is provided on request.

Tellus BH provides excellent long term stability, reliable measurements and is ideally suited to challenging sites.

Tellus BH can be used for a variety of applications from seismology to oil and gas.

KEY FEATURES

 

TELLUS BOREHOLE
Dynamic range > 140dB for shortband, >150dB for broadband
Frequency range 1, 5, 30, 60 and 120 seconds up to 50Hz (100Hz opt)
Tansduction factor 400 V/m/s (SB) and 2000 V/m/s (BB)
High accuracy
Low self-noise
Good thermal stability
Low power
Robust
No need for mass centering or mass locking

 

borehole_graphic

Datasheet

tellus-bh.pdf
tellus-bh.pdf

 

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