Interfacing Of Microcontroller To Circulator Using Embedded C Programming In Development Of Fiber Optic Surface Roughness Measurement Using Time Of Flight

Ashok, Rajandran (2011) Interfacing Of Microcontroller To Circulator Using Embedded C Programming In Development Of Fiber Optic Surface Roughness Measurement Using Time Of Flight. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This report represents the development of a fiber optic roughness measuring system using Time of Flight technique. As the main part of my final-year project, I developed a system where it will interface the circulator to microcontroller using embedded C programming to measure roughness of surfaces using optical fiber through Time of Flight technique. A lot of researches have been done to get a better view of surface roughness and this is described in detail in this report. Besides that, in this project, the transmitter and receiver chip (transceiver) to transmit and receive the light to scan on the surface needed. Light or pulse generated from optical switch goes through the laser diode in transmitter is sent out through one of the single mode optical fiber and received by pin detector at the receiver chip. The pulse is then detected and embedded into the microcontroller using C programming. The receiver circuit has added on circuits of amplifiers to get the outputs amplified. The methods used and steps taken throughout this project are also explained clearly in this report. The measured outputs are obtained through readings on digital millimeters and also through the oscilloscope. The measurement results and explanation for the results obtained are presented in the second last chapter. Finally, the last chapter as the conclusion exposes the overall view of the project and suggestions in order to make the system better besides the future prospect of the project. This is to avoid preventable problems during the implementation and usage of the system.

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