Product

 

FBG-EX-310

Safety evaluation of structures like tunnels

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Features
- Safety evaluation of structures like tunnels
- Measurement of tunnel convergence and crown settlement
- Siultaneously measuring both angle and displacement(length)
- Measuring based on the combination of vector diagrams

ext_principle.png
<Principle based on the combination of vector diagrams>

- Designed and applied special installation jig for FBG Extensometer to install as the shape of tunnel
- High accuracy of measurement
- No effect of electromagnectic waves
- High sensitivity due to the use of wavelength setting bolts 
- Easy to install on a curved surface or slope by applying ball joints
- Easily replaceable and reusable
Specification
- Measurement range :  Length : ± 2000 (με ) (Decision on the use)
                            Angle : ± 3 ( deg) (Decision on the use)
- Gauge length : 250~1,500 mm (Decision on the use)
- Resolution : ± 0.05 %F.S (Full Scale)
- Accuracy : ± 0.25, 0.5, 1 %F.S (Decision on the use)
- Reflectivity : ≧ 70 %
- Operating temperature : - 20 ~ 80 ℃
- FWHM (-3dB point) : ≦ 0.3 nm
- Wavelength range : 1,511 ~ 1,590 nm

※ Choose favorable wavelength from the following set division
Wavelength set division-FBG Mountable Strain sensor.jpg
Application cases See Application cases >>
Reference Reference File Download >>
Advantages -

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