FBG Tiltmeter 

│ DESCRIPTION │

* Usage
- Measuring inclination changement of tunnel, road, bridge, dam, plant, structure

* Features
- Long- term measurements for the angle variation of structures
- Measurements for the angle variation of tunnels, dams and road surface
- Measurements for the angle variation of structures during construction or after completion of construction
- Measurements for the angular variation of adjacent structures due to the construction of downtown
- Safety evaluation on adjacent structures when works excavation or fill- up bank
- Built- in FBG sensor for temperature compensation
- Compared with other companies of which FBG Tiltmeters are operated broad bandwidth in the range of
  wavelength by using “TWO FBG” sensors, our sensors can be operated at half of that because they use only

  ONE FBG”for angle measurement and have high accuracy. Therefore Interrogator cost can be reduced.

* Speccification
•  Measurement Range(deg)1) : 8(- 3~5)
•  FWHM, - 3 dB point(nm) : ≦ 0.1
•  Resolution(% F.S.2)) : ± 0.05
•  Accuracy(% F.S.2))1) : ± 0.25
•  Reflectivity(%) : ≧ 70
•  Sensitivity(pm/deg) : ≧ 450
•  Wavelength(nm) : 1,511 ~ 1,584
•  Operating temperature(℃) : - 20 ~ 80
•  Dimension(mm) : 87 x 41 x 93
•  Weight(kg) : ≦ 1.2
    1) Depending on user’s demand
    2) Full Scale