Title :
A reflectometric optical fiber temperature sensor
Author :
Chiadini, Francesco ; Paolillo, Alfredo ; Scaglione, Antonio
Author_Institution :
Inf. & Electr. Eng. Dept., Univ. of Salerno, Fisciano, Italy
Abstract :
A reflectometric fiber-optic temperature sensor was manufactured and characterized. The sensing probe is obtained by replacing the cladding with a temperature sensitive liquid on a short length of fiber. Its reduced dimensions make it suitable for monitoring applications whenever a high spatial resolution is required. A numerical modeling of the sensor, based on a ray-tracing technique, was carried out. The metrological performance of the first prototype seems to be very interesting in terms of accuracy and, above all, response time. A system for multipoint temperature measurements is also described.
Keywords :
fibre optic sensors; ray tracing; reflectometry; temperature measurement; temperature sensors; fiber-optic cladding; high sensor spatial resolution; multipoint temperature measurement systems; optical fiber transducers; ray-tracing techniques; reduced dimension sensors; reflectometric optical fiber temperature sensors; sensor metrological performance/accuracy/response time; temperature monitoring applications; temperature sensing probes; temperature sensitive liquids; Manufacturing; Monitoring; Numerical models; Optical fiber sensors; Optical fibers; Probes; Ray tracing; Sensor phenomena and characterization; Spatial resolution; Temperature sensors;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2003.809021
