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Concrete deformation Monitoring BGT4200 Series Vibrating Wire Embedment Strain Gauges
Concrete deformation Monitoring BGT4200 Series Vibrating Wire Embedment Strain Gauges Concrete deformation Monitoring BGT4200 Series Vibrating Wire Embedment Strain Gauges
Concrete deformation Monitoring BGT4200 Series Vibrating Wire Embedment Strain Gauges Concrete deformation Monitoring BGT4200 Series Vibrating Wire Embedment Strain Gauges

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Concrete deformation Monitoring BGT4200 Series Vibrating Wire Embedment Strain Gauges

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The vibrating wire type embedded strain gauge can be directly embedded in the concrete or reinforced concrete of hydraulic structures and other structures to monitor the strain of the concrete. The built-in temperature sensor can simultaneously monitor the temperature at the measurement point.
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◀◀  Key Selling Points  ▶▶


  1. Embedded Design

    • Directly installed in concrete or reinforced concrete structures (dams, bridges, tunnels) for long-term strain monitoring.

  2. Multi-Model Versatility

    • BGT4200/4200HP: Ideal for foundations, piles, and tunnel linings; expandable to multi-directional strain gauges or stress-free sensors with accessories.

    • BGT4210: Optimized for mass concrete structures.

    • BGT4210RCC: Heavy-duty design for roller-compacted concrete (RCC) applications.

    • BGT4200X: Compact one-piece structure for simplified installation.

  3. High Sensitivity

    • Detect micro-crack openings as small as 1μm when extended-gauge models are used in boreholes.

  4. Integrated Temperature Compensation

    • Built-in temperature sensor ensures accurate strain measurements under thermal variations.

  5. Customizable Configurations

    • Optional extended gauge lengths for specialized applications (e.g., crack monitoring).



◀◀  Product Parameters  ▶▶

Parameter BGT4200/4200X BGT4200HP BGT4210 BGT4210RCC
Standard Range 3000 με 2500 με 3000 με 2500 με
Non-linearity ≤1% FS (linear)
≤0.1% FS (polynomial)


Resolution 0.125% FS 0.025% FS 0.125% FS 0.025% FS
Temperature Range -20°C to +80°C


Gauge Length 150 mm 250 mm 150 mm 250 mm
Water Pressure Rating Not waterproof 1/2/3 MPa (selectable) Not waterproof Not waterproof
Installation Embedded in concrete








◀◀  Application Scenarios  ▶▶


  1. Hydraulic Engineering

    • Monitor concrete strain in dam foundations and spillways to prevent structural fatigue.

  2. Bridge & Tunnel Construction

    • Embed BGT4200HP in tunnel linings to assess load distribution and deformation risks.

  3. Infrastructure Health Monitoring

    • Deploy BGT4210 in mass concrete pillars or bridge piers for long-term stability tracking.

  4. RCC Projects

    • Use BGT4210RCC in roller-compacted concrete layers (e.g., roadbeds, embankments) to ensure compaction quality.

  5. Micro-Crack Detection

    • Install extended-gauge BGT4200X in boreholes to monitor crack propagation (1μm sensitivity).


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