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Bragg wavelength position (λB), before and after packaging, and the value of its red shift (δλ) induced by packaging for each FBG strain sensor.
| Sensor | λB (nm) (Before packaging) | λB (nm) (After packaging) | δλ (nm) |
|---|---|---|---|
| FBG2 | 1,540.18 | 1,540.58 | 0.40 |
| FBG3 | 1,541.52 | 1,542.22 | 0.70 |
| FBG4 | 1,540.11 | 1,540.71 | 0.60 |
| FBG5 | 1,540.33 | 1,540.77 | 0.44 |
| FBG6 | 1,539.91 | 1,540.35 | 0.44 |
