The Sister Bar Rebar Strain Meter VWS-4000 is a precision instrument designed to monitor strain in reinforced concrete structures such as bridges, tunnels, retaining walls, and dams. Utilizing vibrating-wire technology, it provides highly accurate, drift-free, and repeatable measurements for reliable long-term structural health monitoring.
This strain meter is installed alongside rebar (sister bar) to measure strain directly in reinforced concrete elements. By converting mechanical deformation into precise electrical signals, it gives engineers valuable data to assess stress distribution, structural performance, and potential weaknesses. The VWS-4000 is resistant to temperature variations, moisture, and electrical noise, ensuring reliable performance even in challenging construction or underground environments.
Engineers use the Sister Bar Rebar Strain Meter VWS-4000 to monitor structural integrity, validate design assumptions, and support proactive maintenance strategies. Integration with dataloggers and automated monitoring systems enables continuous data collection, reducing manual inspection requirements and facilitating timely decision-making.
Key Features:
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High-accuracy vibrating-wire strain measurement
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Installed alongside rebar for direct concrete strain monitoring
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Stable, drift-free long-term performance
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Resistant to temperature, moisture, and electrical noise
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Compatible with dataloggers and real-time monitoring systems
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Durable construction suitable for long-term deployment
Advantages:
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Reliable long-term monitoring of concrete rebar strain
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Accurate and repeatable measurements for confident structural assessment
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Early detection of stress changes or potential structural issues
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Supports automated monitoring, reducing manual inspections
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Suitable for bridges, tunnels, dams, and other concrete structures
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Ensures dependable performance under harsh field conditions
The Sister Bar Rebar Strain Meter VWS-4000 provides engineers with a precise, durable, and trustworthy solution for embedded structural strain monitoring, ensuring long-term safety and stability.





