Penggunaan gelombang mikro untuk mendeteksi kualitas susu sapi UHT = Microwave for UHT cow milk quality detection

Suryawirawan, William (2016) Penggunaan gelombang mikro untuk mendeteksi kualitas susu sapi UHT = Microwave for UHT cow milk quality detection. Bachelor thesis, Universitas Pelita Harapan.

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Abstract

Gelombang mikro mengalami pelaifan apabila melewati suatu medium, yang dalam penelitian ini adalah susu sapi Ultra High Temperature (UHT). Susu memiliki kandungan air yang cukup banyak (87,25%). Apabila perubahan kualitas susu dapat mengubah kandungan air maka penelitian karakteristik pelaifan untuk menentukan kualitas susu dapat dilakukan. Penelitian ini menggunakan frekuensi pada rentang pita X (8 - 12 GHz) yang dibangkitkan oleh tuneable Gum oscillator. Gelombang mikro yang dibangkitkan tersebut ditembakkan ke susu, tegangannya dideteksi oleh detektor dan diamati sebagai fungsi waktu. Wadah yang digunakan dalam percobaan ini adalah wadah plastik. Penelitian ini menunjukkan karakteristik pelaifan gelombang mikro pada rentang pita X yang merambat untuk menguji kualitas susu. Hasilnya menunjukkan bahwa susu sapi UHT mengalami adanya perubahan pelaifan sekitar 2 dB pada saat pengukuran ekstrim. Penelitian ini juga mengembangkan sistem akuisisi data otomatis yang menggunakan mikrokontroler dengan voltage amplifier untuk melakukan pengukuran karakteristik pelaifan secara otomatis pada detektor, sehingga hasil pengukuran dapat ditampilkan pada layar LCD maupun disimpan dalam kartu SD. / Microwave is attenuated when passing through a medium, which in this experiment is ultra high temperature (UHT) cow milk. Milks contains 87,25% of water. If quality of the milk changes its contain of water, then experiment on absorbtion of microwave can be used. This experiment uses x-band frequencies (8 - 1 2 GHz) generated by tuneable Gunn oscillator. The generated microwave passing through the milk and its transmission is detected. The container used in this experiment is a plastic container. This study discusses the attenuation characteristics of microwave on x-band frequencies propagating through the milk based on a function of time. The results show that the UHT cow milk has around 2 dB differences on the extreme condition. This work also developed an automatic data acquisition system using microcontroller and voltage amplifier, the attenuation can be measured automatically, the result can be shown on LCD screen or saved in the SD card.

Item Type: Thesis (Bachelor)
Creators:
CreatorsNIMEmail
Suryawirawan, WilliamUNSPECIFIEDUNSPECIFIED
Contributors:
ContributionContributorsNIDN/NIDKEmail
Thesis advisorKanalebe, Herman YacobUNSPECIFIEDUNSPECIFIED
Uncontrolled Keywords: microwave ; attenuation ; absorbstion spectroscopy ; automation ; cow milk quality
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: University Subject > Current > Faculty/School - UPH Karawaci > Faculty of Science and Technology > Electrical Engineering
Current > Faculty/School - UPH Karawaci > Faculty of Science and Technology > Electrical Engineering
Depositing User: Ms Meliza Faomasi Laoli
Date Deposited: 16 Oct 2018 08:03
Last Modified: 27 Feb 2019 03:16
URI: http://repository.uph.edu/id/eprint/1825

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