Fibre optic sensors are used worldwide in many environments and applications. Are defined as a device that can be used to measure the physical parameters on the effects on the thread located and how light is passed to the thread.
Essentially its fibre optic sensors used for the measurement of physical properties, such as pressure, temperature, humidity and pressure, even if it was also possible to monitor the speed and acceleration in some applications, which are often used to monitor the health structures in real time measurements situations.des, forces exerted on the building.
One of these applications is in the buildings and bridges where follow-up is done by detecting changes in the overall structure.Fiber optic sensors are also often used for measurements of the properties in tunnels and dams.in these situations are the foundations, scrolling 3-d, subsidence, monitor sensors commonly used and, in some cases, a post-seismic after the earthquake assessment.
There are a number of advantages to the use of sensors optiques.Ces are as follows:
Immunity of EMI (electromagnetic interference) and IPS (radio interference).
Safe and reliable use in extreme environments where high temperatures, explosions and extreme vibration.
Small size and high sensitivity.
There are two main types of extrinsic and intrinsic sensors.
Extrinsic sensors use optical fibre as a means of communicating the signaux.Entrez these fibres are often light modulator light
Integrated sensors are inherently extrinsic races taking place actually results in the context of the thread.dans this case, the investigation because of how it is influenced by changes in physical spots optiques.principalement fiber strains are changes to the way in which light passes through the fibre.changement behavior allows measurements.
Fibre optic sensors are used in many industrial sectors of construction of oil and gaz.les specific properties of the glass fibre measures that are useful in survey instrumentation.
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