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Design Of An Infrared Tomography System For Detection Of Bubbles
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Dalam kajian ini, sebuah sistem tomografi menggunakan penderia direka untuk digunakan untuk model paip menegak. Sistem tomografi ini akan digunakan untuk mengira jumlah buih sambil mengukur saiz buih yang terkandung dalam model paip yang diisi dengan air. Sistem ini akan direka bermula dari pemilihan jenis penderia optik sehinggalah ke teknik pemprosesan data. Penderia cahaya infra merah digunakan sebagai sumber cahaya untuk sistem ini. Sifat–sifat beberapa diod foto dikaji dan dibandingkan bagi memilih model yang sesuai untuk sistem ini. Mikro pengawal berfungsi untuk melakukan kerja penukaran isyarat analog ke digital. Beberapa eksperimen telah dijalankan bagi mengenal pasti prestasi sistem penderia tersebut. Hukum Lambert–Beer menyatakan bahawa atenuasi dan penyerapan cahaya berlaku apabila cahaya melintasi bahan yang berlainan. Beberapa eksperimen dijalankan bagi mengetahui sama ada sistem ini mampu mengesan buih dalam paip yang mengandungi air. Data yang diperoleh akan dibandingkan dengan hipotesis yang dibuat mengenai atenuasi dan penyerapan cahaya.
Kata kunci: Tomografi optik; kadar halaju zarah; proses tomografi.
In this study, an optical process tomography with 2 orthogonal projections is being designed to be implemented at a vertical column modelled. The tomography system will be designed from the development of transducer pairs to the data acquisition system implemented. Infrared emitters are being considered as a light source due to the difference of its wavelength with the wavelength of visible light. Photodiodes are being characterized and compared for maximizing its performance when integrated with the system. Microcontrollers are functioned to perform analogue–to–digital conversion. Experiments are being conducted to investigate whether the system is able to detect gas bubbles in the vertical column. The results from the studies will be compared with theoretical hypotheses of light absorption and light attenuation.
Key words: Optical tomography; mass flow rate; process tomography
Title: Design Of An Infrared Tomography System For Detection Of Bubbles
Description:
Dalam kajian ini, sebuah sistem tomografi menggunakan penderia direka untuk digunakan untuk model paip menegak.
Sistem tomografi ini akan digunakan untuk mengira jumlah buih sambil mengukur saiz buih yang terkandung dalam model paip yang diisi dengan air.
Sistem ini akan direka bermula dari pemilihan jenis penderia optik sehinggalah ke teknik pemprosesan data.
Penderia cahaya infra merah digunakan sebagai sumber cahaya untuk sistem ini.
Sifat–sifat beberapa diod foto dikaji dan dibandingkan bagi memilih model yang sesuai untuk sistem ini.
Mikro pengawal berfungsi untuk melakukan kerja penukaran isyarat analog ke digital.
Beberapa eksperimen telah dijalankan bagi mengenal pasti prestasi sistem penderia tersebut.
Hukum Lambert–Beer menyatakan bahawa atenuasi dan penyerapan cahaya berlaku apabila cahaya melintasi bahan yang berlainan.
Beberapa eksperimen dijalankan bagi mengetahui sama ada sistem ini mampu mengesan buih dalam paip yang mengandungi air.
Data yang diperoleh akan dibandingkan dengan hipotesis yang dibuat mengenai atenuasi dan penyerapan cahaya.
Kata kunci: Tomografi optik; kadar halaju zarah; proses tomografi.
In this study, an optical process tomography with 2 orthogonal projections is being designed to be implemented at a vertical column modelled.
The tomography system will be designed from the development of transducer pairs to the data acquisition system implemented.
Infrared emitters are being considered as a light source due to the difference of its wavelength with the wavelength of visible light.
Photodiodes are being characterized and compared for maximizing its performance when integrated with the system.
Microcontrollers are functioned to perform analogue–to–digital conversion.
Experiments are being conducted to investigate whether the system is able to detect gas bubbles in the vertical column.
The results from the studies will be compared with theoretical hypotheses of light absorption and light attenuation.
Key words: Optical tomography; mass flow rate; process tomography.
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