FBG Accelerometer 

│ DESCRIPTION │

* Usage
- Measuring vibration and acceleration of road, bridge, tunnel, structure.

* Feature
- Safety evaluation of structures
- Long- term measurements for vibration variation of the structures
- Acceleration and stress measurements of the structures
- Vibration measurements of the structures by external forces
- Vibration Measurement of the outside of the structures or of body
- Compared with other companies of which FBG Accelerometers 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 acceleration measurement and have high accuracy. Therefore Interrogator cost can be reduced.

* Specification
- Measurement range(G)1) : ± 2
- FWHM, - 3 dB point(nm) : ≦ 0.1
- Resolution(% F.S.2)) : ± 0.05
- Accuracy(% F.S.2))1) : ± 0.25
- Reflectivity(%) : ≧ 70
- Gauge factor(pm/G) : 270
- Wavelength(nm) : 1,511 ~ 1,584
- Operating temperature(℃) : - 20 ~ 80
- Frequency(Hz) : 0~80

  1) Depending on user’s demand
  2) Full Scale