Description:


The Embedded FBG strain gaugeis used to measure the change of strain inside concrete, it’s adopts a encapsulation structure to make the sensor itself and the concrete to achieve stiffness matching, to improve the embedding survival rate;


  It is suitable for monitor the strain of long-time embedded beam, column, pile foundation, support, retaining wall, hydraulic structure, lining, pier, base and foundation.;for the temperature is compensated by embedding a strain-free cylinder.

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Application:


  Monitor Encapsulated structure Long-term / Short-Term Harsh Environments Monitor

  Long-time Strain Monitoring of embedded beam, column, pile foundation, support, retaining wall, hydraulic structure, lining, pier, base and foundation.


Features:


  ●High precision, high stability, high reliability;

  ●Safe, anti-electromagnetic interference, corrosion resistance, pollution resistance, strong lightning resistance, can be used in strong electromagnetic interference, high lightning strike, flammable, easy explosion and other harsh conditions;

  ● Distance for transmission signal up to 40Km;

  ● Distributed measurement, multiple sensors connected on a single optical fiber (typical: 12)

  ● Simple layout, can be use together with other types of fiber grating sensor;


Technical specification:


Product Name

FBG Strain gauge

Temp Range

-40℃~80℃

Range

±1500με

Installation

Surface welding/ Buried

Resolution

<0.1%F.S.

Sensor lead wire

Left & Right (1m±0.1m)

Armored Optical cable

Accuracy

<0.3%F.S.

Connection Mode

Welding or FC/APC Joint

Distance

90mm

Central wavelength

1525~1565nm

Size

Φ28×120mm

Reflectivity

>85%


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