10
Installing optical strain gages
Fig. 3.1.7: Fix the outgoing fibers to relieve the strain in a distance of approx. 20 cm
After alignment, fix the outgoing fibers in place with polyimide adhesive tape (Order
No. 1-Klebeband) in order to protect the fibers against mechanical influences.
NOTE
If the fibers form an arch when laid, the bend radius must not be less than 25
mm!
The fiber may be bent only after having been fixed with X60 superglue (see figure
3.2.4), however, it must not be bent at the point where the fiber protrudes from the
strain gage or the splice.
Fix an approx. 10 cm long polyimide adhesive tape on the Teflon
installation
aid. Pull the adhesive tape tight, align the optical strain gage with the
adhesive tape on the marking line and stick the adhesive tape on the
measuring body, see Fig. 3.1.8.
Fig. 3.1.8: Fixing the optical strain gage with the installation aid and adhesive tape
HBM
A2397-3.2 en/de/fr