Cảm biến đo biến dạng (VW Rebar Strainmeters) Geokon 4911 – 4911A
The Model 4911 Rebar Strainmeter is designed for measuring strains in foundations, slurry walls, precast piles, caissons, bridge abutments, tunnel liners, etc. The standard Model 4911 (#4 rebar), known as the “Sister Bar,” is installed alongside structural rebar. Larger models (4911A) are available for welding directly into structural rebar. Where short-term dynamic measurements are to be made, bonded resistance (Model 3911/3911A) strain gauges can be substituted, or added.
4911A | #6, 7, 8, 9, 10, 11, 14
4911A | 1105 mm
¹Accuracy established under laboratory conditions.
²Other ranges available on request