The sensor adopts optical fiber no-electricity detection technology. In terms of structural design, it uses a unique pressure elastic element as the sensing base, which is waterproof, moisture-proof and has the characteristics of good long-term reliability.
Application field
This sensor is applied to the real-time online monitoring of subgrade settlement and tunnel settlement in high-speed railways and subways.
Product features
Waterproof and moisture-proof, insensitive to electromagnetic interference, and reliable for a long time. It has excellent performance in harsh environments and is resistant to mechanical fatigue. Intrinsically safe, with strong resistance to corrosion, pollution and lightning strikes. The internal optical fiber strain element adopts metallized packaging, featuring long-term zero stability, minimal temperature drift, simple welding 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. The layout is simple and it can be used in combination with other types of fiber Bragg grating sensors.
Technical parameters
Project | Indicator |
Range（mm） | 100,200,500,1000（Customizable） |
Precision | 0.5%F.S. |
Resolution | 0.1% F.S. |
Number of gratings | 2 |
Central wavelength of the grating(nm) | 1528~1563 |
Reflectance | ≥80% |
Operating temperature range（℃） | -10~60 |
Size(mm) | Φ76X135 |
Connection method | Fusion, waterproof FC/APC connectors |
Installation method | Mechanical fixation |