3000 Rock Stress Monitoring

3100 Vibrating Wire Stressmeter

The Model 3100 Vibrating Wire Stressmeter is a rigid inclusion cell suitable for monitoring uniaxial stress changes in hard and soft rock applications. The stainless steel proving ring is wedged inside the borehole using either percussive lever screw or hydraulic setting tools. The cells are capable of measuring up to 70MPa.

A sensitive, low range model is available for coal applications. Available in EX Ø37mm to Ø39mm), BX (Ø58mm to Ø61mm and NX (Ø74mm to Ø77mm) boreholes.

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