Design |
|
OptiMet‐OMF glass fiber embedded in coating with 2 or 4 Bragg gratings |
Core diameter of glass fiber, approx. |
μm |
6 |
Diameter of fiber cladding, approx. |
μm |
125 |
Outer diameter of OMF fiber, approx. |
μm |
195 |
Outer diameter with coating, approx. |
μm |
700 ±50 |
Connection (plug) |
|
FC/APC |
Available Bragg wavelengths 2) |
nm |
1515 … 1585 |
Bragg wavelength spacing tolerance |
nm |
±1 |
Gage factor |
|
0.79 |
Gage factor tolerance |
% |
±2 |
Reference temperature |
°C |
23 |
Operating temperature range |
°C |
-40 ¼ +140 |
Storage temperature range |
°C |
-40 ¼ +140 |
Thermal cross sensitivity (TCS) thermal contributing of sensor to strain signal |
μm/m/°C |
7.1 |
Tolerance of thermal cross sensitivity (TCS) |
μm/m/°C |
±1 |
Maximum elongation |
μm/m |
7,000 (0.7%) |
at reference temperature when using X120 adhesive | ||
Strain in positive direction | ||
Strain in negative direction |
μm/m |
7,000 (0.7%) |
Fatigue life at reference temperature when using X120 adhesive Achieved no. of load cycles Lw on steel measuring body at alternating strain εw = ±1000 μm/m and variation of zero point <30 μm/m |
|
>> 107 (aborted after 107 load cycles) |
Smallest bend radius at reference temperature |
mm |
10 |
Preferred bonding material |
|
X120 |
Coated strain measuring fiber OptiMet-PKF 2&4 - technical parameters | PDF, 0.27 Kb |