The fiber Bragg grating bolt stress gauge is mainly used for the measurement of stress and strain such as tensile force, compressive force and tension inside bolts, so as to facilitate the long-term observation of structural strain changes and state analysis.
Introduction to Sensors
This product adopts a unique elastic beam structure, featuring high measurement resolution and accuracy. Its internal sensitive components are free of power supply, intrinsically safe, immune to electromagnetic interference and lightning damage, and can be transmitted over long distances via optical fibers. The product complies with the national standards of the construction industry.
Product features
It has good long-term stability and a high survival rate when buried. Long-term zero stability, minimal temperature drift, simple installation and operation, and good dynamic characteristics; The pigtail fiber adopts corrosion-resistant PU clad armored optical cable, which has excellent temperature resistance, corrosion resistance and aging resistance, and is suitable for long-term outdoor environments.
Technical parameters
Project | Indicator |
Range（KN） | Stretching：0~250 |
Precision | 1%F.S. |
Resolution | 0.1% F.S. |
Number of gratings | 1 |
Central wavelength of the grating(nm) | 1528~1563 |
Reflectance | ≥80% |
Operating temperature range（℃） | -30~80 |
Size(mm) | Customize according to the specifications of the bolts |
Pigtail fiber | Corrosion-resistant PU coated armor, single end 1.5m, customizable |
Connection method | Fusion, waterproof FC/APC connectors |
Installation method | Mechanical fixation |