Products > Smart FBG Sensors

Fibre Bragg Grating sensors are recorded within the core of a single mode optical fibre, just 9 microns in diameter. Together with the outer cladding and a protective polymer coating, these fiber sensors are truly miniature, generally just 0.15 or 0.25 mm in diameter. For many strain-sensing applications it is practical and appropriate to simply embed or attach these unpackaged SmartFBG sensors within or to the structure under test.

For many other applications alternative sensor constructions are required, for instance to provide a more robust sensor, to provide a sensor with a more distributed strain response, or to offer measurement of other parameters such as temperature, pressure etc. Smart Fibres have developed a range of "Smart" FBG sensors to suit a multitude of applications.

Image	Type	Description	Datasheet
	SmartFBG	An unpackaged FBG sensor supplied in a single mode optical fibre for strain and temperature measurements. Suitable for very low intrusion surface mounting, FRP composite embedment, or packaging into an FBG transducer.
	SmartPatch	A convenient, robust strain/temperature sensor supplied as a flexible FRP patch. Available singly or in arrays, SmartPatch is a reusable sensor suitable for bonding to the surface of a structure. Applications include yacht masts and hulls, wind turbine blades and FRP and concrete bridges.
	SmartWeld	A tough, weldable fiber optic strain sensor designed to be attached to bridges, offshore structures, buildings, cranes, construction, mining and other heavy machinery and structures that are prone to experience harsh environmental conditions. Available individually or as part of an array.
	SmartCell	A miniature transducer offering high accuracy pressure measurement with all of the added benefits of optical fiber sensing. Suitable for pressure or load monitoring in extremely hazardous environments. Applications include filament winding load monitoring and hydrogen tank pressure monitoring.
	Downhole SmartCell	A variant of the SmartCell transducer developed for stable and accurate multi-point hydrostatic pressure and temperature measurements in the harsh environment of hydrocarbon production wells.
	SmartBridge	A fibre Bragg grating displacement sensor that is ideal for monitoring structural movements in one-axis, e.g. relative movement between concrete bridge deck panels, or crack growth monitoring in ancient monuments. SmartBridge is also an excellent transducer to form a long gauge length strain sensor to use, for example, as part of a ship hull stress monitoring system.
	SmartBar	A robust optical fiber strain sensors encased within a range of long gauge length steel packages to suit many applications. SmartBars are ideal for the measurement of internal tension, compression and loading of inhomogeneous materials such as concrete
	SmartTape	A strain/temperature sensor wherein the FBG is supplied within an unimpregrated glass mat. Also available in arrays and suitable for surface bonding with minimal intrusion, or for embedment within FRP composites. Applications include yacht masts, rotorblades, GRP building sections and filament wound CFRP pipes and containers.
	SmartRod	A robust sensor array in the form of a pultruded composite rod for the measurement of curvature, tension, torsion and compression. SmartRod can be attached to the surface of a structure or is particularly appropriate for embedment in concrete. Applications include tunnels and buildings, mooring cables and road pavements.
	SmartTemp	A temperature sensor available in several package styles, including a miniature package for embedding within composites, multi-sensor array, and a design based upon a FBG mounted on a strain-isolated coupon for enhanced temperature sensitivity.
	SmartAccel 40g	A single axis FBG acceleration sensor, suitable for high frequency measurement of large amplitude vibrations.  Ideal for the measurement of rotating machines.