Gentian optik digunakan sebagai perantaraan (medium) bagi proses penghantaran data dalam bentuk cahaya kerana ianya sangat mudah lentur dan tahan lasak. Gentian optik boleh digunakan sebagai alat pengesan untuk mengukur suhu, tekanan, getaran dan lain-lain parameter. Pada masa ini, teknologi gentian optik amat luas digunakan dalam bidang pengesanan kerana kos yang murah, system pemasangan yang ringkas dan mudah alih. Tujuan utama projek ini adalah untuk membina satu pengesan gentian optik. Fokus utama projek ini adalah tentang merekacipta pengesan sistem pembezaan tekanan bendalir mengunakan teknik diafragma untuk menyukat halaju aliran air. Ringkasan tentang pengesan yang paling popular, maklumat tentang pengenalan dan beberapa kriteria tentang sistem pengesan tekanan telah dibincangkan dalam rumusan projek. Sistem ini diaplikasikan untuk memberi bacaan yang berterusan tentang halaju aliran bendalir dengan menggunakan pengesan gentian optik serta litar penerima dan penghantar gentian optik. Keputusan daripada sistem ini seterusnya dianalisis untuk memenuhi objektif utama projek ini. Cadangan untuk memperbaiki kelemahan projek ini telah diberi pada penghujung laporan ini. Secara kesimpulannya, projek ini berjaya mencapai objektifnya iaitu menyukat halaju air menggunakan konsep gentian optik.
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Fiber optic characteristic which is flexible and durable makes it important medium for transmitting and receiving the data in the form of light. Fiber optic sensor can be used to detect temperature, pressure, vibration and other measurable parameters. Nowdays, fiber optic technologies are widely used in sensor field because these are simple, low cost and very efficient. The main purpose of this project is about developing fiber optic sensor. This project is focused on developing or designing differential pressure measuring transducer using diaphragm technique to measure the liquid flow. In the project review, an overview of the most popular sensing techniques are discussed, including their theoretical backgrounds, main characteristics and some important criteria of pressure sensor system. The system is implemented to give the continuous reading of fluid flow velocity using the fiber optic sensor with the help of fiber optic receiver and transmitter circuits. The results of this system are then analysed to fulfill the primary objective of this project. At the end of the report, suggestions on how this project could be improved in future are discussed. In conclusion, this project succeeds to achieve the objective which is to measure water flow using fiber optic technology.
Fiber optic characteristic which is flexible and durable makes it important medium for transmitting and receiving the data in the form of light. Fiber optic sensor can be used to detect temperature, pressure, vibration and other measurable parameters; iber optic sensor can be used to detect temperature, pressure, vibration and other measurable parameters
Remote measurement of liquid flow using fiber optic technology_Thinaraj Al Balakrishnan_E3_2010_875003542_00003084232_NI