Armored Strain-Sensing Optical Cable
The armored stress/strain sensing cable is designed for BOTDR/BOTDA research. A central tight-buffered sensing fiber is surrounded by stranded steel wire or FRP reinforcement and an MDPE sheath. Close contact between fiber, strength members and sheath enables real-time external strain sensing. The distinctive layered stranded FRP structure converts longitudinal cable tension into uniformly distributed transverse stress while retaining strong mechanical properties, balancing installation strength against sensing requirements. The parallel construction description also specifies a stranded-steel-wire structure performing this conversion. It suits buried, embedded and pre-embedded installation for structural health monitoring of large buildings, geological settlement and pipeline deformation.
Overview
Specifications
| Parameter | Value |
|---|---|
| Fiber core count [Configuration ( Fiber Count :1, Outer Diameter :5mm, Reinforcement Material :Steel wires) / Configuration ( Fiber Count :1, Outer Diameter :5mm, Reinforcement Material :GFRP)] | 1 |
| Outer diameter [Configuration ( Fiber Count :1, Outer Diameter :5mm, Reinforcement Material :Steel wires) / Configuration ( Fiber Count :1, Outer Diameter :5mm, Reinforcement Material :GFRP)] | 5 mm |
| Permissible tensile loading [Configuration ( Fiber Count :1, Outer Diameter :5mm, Reinforcement Material :Steel wires) / Configuration ( Fiber Count :1, Outer Diameter :5mm, Reinforcement Material :GFRP); Long-Term] | 200 N |
| Permissible tensile loading [Configuration ( Fiber Count :1, Outer Diameter :5mm, Reinforcement Material :Steel wires); Short-Term] | 1000 N |
| Permissible crushing force [Configuration ( Fiber Count :1, Outer Diameter :5mm, Reinforcement Material :Steel wires) / Configuration ( Fiber Count :1, Outer Diameter :5mm, Reinforcement Material :GFRP); Long-Term] | 1000 N/100mm |
| Permissible crushing force [Configuration ( Fiber Count :1, Outer Diameter :5mm, Reinforcement Material :Steel wires) / Configuration ( Fiber Count :1, Outer Diameter :5mm, Reinforcement Material :GFRP); Short-Term] | 3000 N/100mm |
| Minimum bend radius [Configuration ( Fiber Count :1, Outer Diameter :5mm, Reinforcement Material :Steel wires) / Configuration ( Fiber Count :1, Outer Diameter :5mm, Reinforcement Material :GFRP); Dynamic] | 200 mm |
| Minimum bend radius [Configuration ( Fiber Count :1, Outer Diameter :5mm, Reinforcement Material :Steel wires) / Configuration ( Fiber Count :1, Outer Diameter :5mm, Reinforcement Material :GFRP); Static] | 100 mm |
| General attenuation [Configuration ( Fiber Count :1, Outer Diameter :5mm, Reinforcement Material :Steel wires) / Configuration ( Fiber Count :1, Outer Diameter :5mm, Reinforcement Material :GFRP); 1310/1550nm] | ≤0.4/0.3 dB/km |
| Applicable Temperature Range [Configuration ( Fiber Count :1, Outer Diameter :5mm, Reinforcement Material :Steel wires) / Configuration ( Fiber Count :1, Outer Diameter :5mm, Reinforcement Material :GFRP)] | -20~75 °C |
| Net weight [Configuration ( Fiber Count :1, Outer Diameter :5mm, Reinforcement Material :Steel wires)] | 32 kg/km |
| Reinforcement Material [Configuration ( Fiber Count :1, Outer Diameter :5mm, Reinforcement Material :Steel wires)] | Steel wires |
| Permissible tensile loading [Configuration ( Fiber Count :1, Outer Diameter :5mm, Reinforcement Material :GFRP); Short-Term] | 800 N |
| Net weight [Configuration ( Fiber Count :1, Outer Diameter :5mm, Reinforcement Material :GFRP)] | 30 kg/km |
| Reinforcement Material [Configuration ( Fiber Count :1, Outer Diameter :5mm, Reinforcement Material :GFRP)] | GFRP |
Applications
Key Features
Datasheet
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