Fiber Optics Sensor System Ppt

The relationship between fiber reflector distance and intensity of returned light example 2.

Fiber optics sensor system ppt.

Abstract this paper presents an overview of fiber optic sensor technology basic classifications of optic sensors namely the extrinsic sensors and the intrinsic sensors and their operation principles also discussed the basic functions of optical fiber sensors. In das the optical fiber cable becomes the sensing element and measurements are made and in part processed using an attached optoelectronic device such a system allows acoustic frequency strain signals to be detected over large distances and in harsh environments. The fohs is composed of a humidity sensing material a metal tube a multi mode plastic optical. To corrosion immune to electromagnetic interference emi wide operating temperature range fiber bragg grating sensor.

Depending on the application fiber may be used because of its small size or because no electrical power is needed at the. Fiber optic sensors 1. Fiber optic sensors advantages of fiber optic sensors electrically insulating materials no electrical cables are required high voltage environments chemically passive not subject e g. Rayleigh scattering based distributed acoustic sensing das systems use fiber optic cables to provide distributed strain sensing.

A fiber optic sensor is a sensor that uses optical fiber either as the sensing element intrinsic sensors or as a means of relaying signals from a remote sensor to the electronics that process the signals extrinsic sensors. Bending the fiber as the deformer closes on the fiber radiation losses increase and the. The fohs system includes an fohs a spectrometer a halogen white light source and a y coupler. Fiber optic sensors 2.

The last revolution appeared as designers to combine the productive results of optoelectronic devices with fiber optic telecommunication devices to create fiber optic sensors. Fiber optic sensors myoungsu shin department of civil engineering university of illinois at urbana champaign contents definition of fiber optic sensors appearance of. Fibers have many uses in remote sensing. Reliability early growth stage between 20 50m cost per field to customer large incremental growth potential optical system deployment interpretation oil company sponsors courtesy petroleum geo services seismic reservoir management tool to optimize production source qorex.

Single fiber reflective sensor light leaves the fiber end in a cone pattern and strikes a movable reflector. Intensity based fiber optic sensors example1.