Applications
Early flame detections
Patent : Infrared Sensor GB10042150.8
Application
Early flame detection for use mainly in parkings, tunnels and wide infrastructures.
Technology
FBGs + Sensitive layer acting as blackbody,
Aluminium tube packaging including a capillary glass (greenhouse effect),
Temperature elevation measured by a shift of the Bragg wavelength.
Features
High temperature sensing
Application
Temperature measurements in various environments up to 1100 °C.
Technology
Specific FBGs (thermally regenerated or manufactured with femtosecond laser pulses) in different fiber types,
Adequate packaging,
Temperature elevation measured by a shift of the Bragg wavelength.
Features
Railway traffic monitoring
Application
Axle counting,
Detection of speed, acceleration, weigh-in-motion, wheel flats.
Technology
Uniform FBGs,
High speed demodulation using CCD-based interrogators.
Features
Environmental monitoring
Application
Sensing of chemical species in gas or aqueous environments.
Technology
FBGs and semiconductors combined with specific sensitive coatings.
Features
Strain monitoring
Application
Residual strain monitoring in different materials including concrete and composites during and after their manufacturing process,
Structural health monitoring + predictive maintenance.
Technology
Uniform FBGs in different fiber types,
Metrology based on spectral measurements, also with polarized light.
Features
Smart textiles
Application
Integration of FBG sensors in textiles for various applications (temperature, strain, humidity, biomedical sensing, …).
Technology
Uniform and tilted FBGs in various fiber types with outer diameters down to 50 µm,
Compact interrogators.
Features
Condition monitoring
Application
Vibration sensing.
Technology
Uniform FBGs,
High-speed interrogators.
Features
Biomedical sensors
Applications
Force sensing in tissues during surgery,
Biomarkers detection for real-time diagnosis.
Technology
Uniform and tilted FBGs,
Gold-coating and functional layer for biomarkers detection,
Customized packaging for use in endoscopy.
Features
Hydrogen detection
Patent : Gas Sensor UK0707303.4
Application
Hydrogen detection around pipes, tanks, fuel cells or industries below the lower explosion threshold of 4 %.
Technology
FBGs + sensitive catalytic layer,
In the presence of H2 in air, the sensitive layer undergoes an exothermic reaction,
Temperature elevation measured by a shift of the Bragg wavelength.
Features
