Fiber Optics Sensor System Ppt

Fibers have many uses in remote sensing.

Fiber optics sensor system ppt. The last revolution appeared as designers to combine the productive results of optoelectronic devices with fiber optic telecommunication devices to create fiber optic sensors. Bending the fiber as the deformer closes on the fiber radiation losses increase and the. Depending on the application fiber may be used because of its small size or because no electrical power is needed at the. The fohs system includes an fohs a spectrometer a halogen white light source and a y coupler.

Fiber optic sensors 2. Fiber optic sensors 1. Many of the components associated with these devices are often developed for the fiber optic. Rayleigh scattering based distributed acoustic sensing das systems use fiber optic cables to provide distributed strain sensing.

The relationship between fiber reflector distance and intensity of returned light example 2. Intensity based fiber optic sensors example1. 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. 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.

Fiber optic sensors myoungsu shin department of civil engineering university of illinois at urbana champaign contents definition of fiber optic sensors appearance of. 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. In this study we developed a fiber optic humidity sensor fohs system for the monitoring and detection of coolant leakage in nuclear power plants. Single fiber reflective sensor light leaves the fiber end in a cone pattern and strikes a movable reflector.

The fohs is composed of a humidity sensing material a metal tube a multi mode plastic optical. Significantly the telecommunication technology has changed the recent advances in fiber optic technology.