Flexible FBG Strain Sensor

Flexible FBG Strain Sensor

The flexible FBG strain sensor can be applied to planar or curved surfaces. Multiple sensors can be concatenated on a single optical fibre and mounted on the structure surface using adhesive bonding. The strain gauge is made of silicone flame-retardant material that meets most fire safety standards, capable of self-extinguishing within a specified time without flame propagation or dripping. It also exhibits excellent resistance to high and low temperatures, maintaining stable physical properties over a wide temperature range. The strain gauge measures only 25×5.5×1.3 mm (L×W×H), enabling strain measurement in confined spaces. The material and dimensions of the strain gauge can be customised according to user requirements.

Product features：High flexibility – adapts to various complex surface contours of the test object;Electromagnetic interference immunity;Lightweight and distributed;High accuracy and high resolution;Corrosion‑resistant and ageing‑resistant

Part Number：MP‑BG‑FBGS‑1000

Application area：Aircraft structural strain monitoring | Rail vehicle stress warning | Wind power nuclear reactance interference monitoring | Corrosion protection for marine facilities | Bridge and tunnel crack monitoring | Oil and gas pipeline leakage detection | Multi parameter remote rehabilitation monitoring

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Main parameters
General Parameters
Optional Configurations
Downloads

Main parameters

Core parameters

Measurement Range Measurement Accuracy

±1000 µε, ±1500 µε, ±3000 µε, ±5000 µε, customisable Better than ±(2 + 0.005 × F.S.) µε

Dimension Drawing

General Parameters

Specification	Parameter
Measurement range	±1000 µε, ±1500 µε, ±3000 µε, ±5000 µε, customisable
Measurement accuracy	Better than ±(2 + 0.005 × F.S.) µε
Resolution	Better than 0.5 µε
Sensitivity	~1.22 pm/µε
Maximum drift	< 50 µε
Operating temperature	–40 °C to +80 °C / –60 °C to +200 °C (customisable)
Substrate dimensions	25 × 5.5 × 1.3 mm (L × W × H), customisable
Sensor weight	< 1 g
Connector type	FC/APC, FC/PC, SC, ST (customisable)
Bend radius	≥ 17 mm
Tubing type	0.9 mm Hytrel, fibreglass braid, Teflon (customisable)
Installation method	Adhesive bonding
Central wavelength	1510 nm – 1590 nm
Wavelength deviation	–0.3 to +0.3 nm
Reflectance	≥ 90%
–3 dB bandwidth	≤ 0.3 nm
Side‑mode suppression ratio	≥ 15 dB

Optional Configurations

Downloads

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Product title: Flexible FBG Strain Sensor

Product link: https://www.idealphotonics.com/product/detail/1846.html

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