Canada’s Instrumentation Leader Since 1946.
Canada’s Instrumentation Leader Since 1946.
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Geosense® VWS-4000 series vibrating wire Sister Bars and Rebar Strain Meters are designed to be embedded in concrete to measure strains due to imposed loads. SISTER BAR The VWS-4000 Sister Bar is installed by tying it alongside an existing length of rebar within the cage. Available in two diameters: 12 and 16mm. […]
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Geosense® VWS-4000 series vibrating wire Sister Bars and Rebar Strain Meters are designed to be embedded in concrete to measure strains due to imposed loads.
SISTER BAR
The VWS-4000 Sister Bar is installed by tying it alongside an existing length of rebar within the cage. Available in two diameters: 12 and 16mm.
REBAR STRAIN METER
The VWS-4001 Rebar Strain Meter is installed by welding it into the existing rebar cage at a location within the structure where loads can be accurately passed from the concrete into the gauge. Available in various sizes to match the size of the rebar cage into which it is to be welded.
| Thermistor | 3k 0hms at 25°C |
| Over-range | +20% |
| Resolution | 0.6με |
| Accuracy | ±0.25%FS |
| Non-linearity | <0.75%FS |
| Effective Gauge Length | 50mm (nominal) |
| De-bonded Length | 175mm |
| Overall Length | 1.39m |
| Standard Diameter | 12, 16mm; 14, 16, 20, 25, 28, 32mm |
| Operating Range | 3000 με |
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