FBGS InfinityScan^®

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The FBGS InfinityScan^® is the new interrogation unit for FBG fiber sensing. Engineered for the industry, dynamic and precise, it measures up to 2000 sensing points per engine to cover long distances (over 1 km). Moreover, the system supports the “ILLumiSense” software offering visualization features as well as processing and converting FBG wavelengths into engineered data.

The interrogation unit suits temperature, strain and pressure sensing in the following environments:
. large production installations
. monitoring of long-distance civil and energy infrastructures
To meet these industry needs, the optical engine is available as Embedded Processing (EP) platform housed in an industry-standard 19” chassis.

What is “Code Division Multiplexing”?
The device is based on our patented technology “Code Division Multiplexing” (CDM). The sensing network is composed of multiple sections repeating the same WDM-array that are measured simultaneously. This is made possible by a digital code that modulates the outgoing and incoming light as a function of time. Fibers are measured sequentially, and it is possible to lock a chosen WDM-section.
Overlapping or repeating wavelengths are not an issue anymore.

Features
∙ Total number of sensors: > 2000
∙ Sensor length range: 25 m > 1000 m
∙ Maximum number of WDM-sections: > 25
∙ Minimum distance between WDM-sections: 2 m
∙ Wavelength range: 1510 nm – 1590 nm
∙ Wavelength precision: ± 3 pm
∙ Wavelength linearity: 10 pm
∙ Absolute wavelength accuracy: 40 pm
∙ Minimum wavelength spacing: 0.8 nm
∙ Dynamic range: >30 dB (user selectable control)
∙ Maximum sampling rate (all sections): 20 – 50 Hz

Fields of application

FBGS InfinityScan is perfectly suited for applications in industrial environments or structural health monitoring where long distances must be tracked or where a very high number of sensing points are required. Moreover, the multiplexing possibilities enable simultaneous monitoring of over 2 000 sensors with a single measurement engine minimizing the cost per measurement point.

Typical fields of application include:

Process industry
∙ Liquid level sensing
∙ Leak detection
∙ Temperature sensing

Civil engineering
∙ Dam monitoring
∙ Bridge monitoring
∙Road monitoring
∙ High-rise buildings
∙ Mines and tunnel monitoring
∙ Perimeter security / perimeter security

Energy installation monitoring
∙ (Flexible) pipelines
∙ Undersea cables
∙ Risers
∙ Monopiles
∙ Partial discharge in power cables
∙ Energy infrastructure monitoring
∙ Hydrogen tank monitoring