Hasil Pencarian  ::  Simpan CSV :: Kembali

Hasil Pencarian

Ditemukan 5 dokumen yang sesuai dengan query
cover
Hans Wibowo Putra
"Pengukuran arus dapat diartikan sebagai kegiatan mengukur arus yang mengalir melalui sebuah rangkaian tertutup. Hal ini dapat dilakukan dengan berbagai metode, sebagai contoh dengan menggunakan ampere-meter, trafo arus (trafo penurun tegangan), meter jepit. Metode yang paling umum diketahui adalah dengan menggunakan ampere-meter, dikarenakan oleh faktor teknik dan ekonomi. Namun, ada sebuah fenomena alam yang disebut Efek Hall yang dapat membawa pembaruan dalam mengukur arus. Efek Hall adalah perbedaan tegangan diantara konduktor elektrik, hasil dari perubahan arus listrik di konduktor dan medan magnet yang tegak lurus dengan arus. Kelebihan menggunakan metode ini dalam mengukur arus ialah tahan terhadap debu, kotoran, lumpur, dan air. Karakteristik ini yang membuat alat Efek Hall lebih baik dalam penginderaan optic dan elektromekanik. Efek ini diaplikasikan di dalam alat yang disebut transduser arus. Proyek ini bertujuan untuk melakukan eksperimen menggunakan transduser arus dan toroidal. Toroida dibuat dan diuji untuk memperagakan dan mensimulasikan keadaan di dalam transduser arus dengan menggunakan berbagai macam resistansi dan ukuran toroid, sehingga hasil dari kedua buah alat dapat dibandingkan. Hasil yang diinginkan dari proyek ini adalah pengertian mengenai cara kerja transduser arus dan toroidal termasuk efek memagnetisasi dan demagnetisasi, termasuk membandingkan hasil dari toroida dengan transduser arus. Software skema dan software untuk merancang PCB juga digunakan sebagai bagian dari proyek, bersamaan dengan eksperimen dan simulasi.
......Current measurement is defined as measure current that flows through a closed circuit. This measurement can be done in many ways, such as using an ammeter, current transformer (step down transformer), clamp meter, etc. The most commonly known techniques of measuring current are using an ammeter, because of technical and economic reasons. However, there is a natural phenomenon called Hall Effect that can lead a new way of measuring current. The Hall Effect is the production of a voltage difference across an electrical conductor, transverse to an electric current in the conductor and a magnetic field perpendicular to the current. The advantage of using this method to measure a current is immune to dust, dirt, mud, and water. These characteristics make Hall Effect devices better for optical and electromechanical sensing. This effect is applied in a device called current transducer. This project is aimed to conduct experiments using the current transducer and toroidals. The toroidals were used to replicate and simulate the inside of the current transducer in various resistance and diameter of toroid condition, so the results from both devices can be compared. The expected outcomes of this project are the understanding of the operation of current transducer and toroidals including the magnetized and demagnetized effect. Schematics software and PCB design software are performed as part of this project, along with experiments, calculation, and simulations."
Depok: Fakultas Teknik Universitas Indonesia, 2013
S44660
UI - Skripsi Membership  Universitas Indonesia Library
cover
Fahmi Umarella
"ABSTRAK
Boost converter adalah suatu rangkaian elektronika yang dapat
menaikkan nilai tegangan keluaran. Nilai tegangan output yang dihasilkan dapat diatur dengan merubah nilai duty cycle. Contoh penggunaan rangkaian ini adalah pada sistem solar cell. Karateristik intesitas matahari selalu berubah ubah terhadap waktu, cuaca dan iklim sehingga menjadikan sel surya tidak maksimal untuk digunakan jika ditempatkan secara pasif. Salah satu dampaknya adalah perubahan nilai tegangan yang tergantung pada intensitas cahaya yang
diterima oleh sel surya. Induktor memegang peran yang cukup penting pada boost converter. Fungsi induktor pada boost converter adalah untuk menyimpan energi listrik, energi ini nantinya akan disalurkan ke beban. Sehingga tegangan pada beban adalah hasil dari tegangan input ditambah dengan energi yang tersimpan pada induktor, sehingga tegangan output boost converter menjadi lebih besar dari pada tegangan input. Dalam penelitian ini akan dibahas mengenai perancangan induktor toroid binokuler. Induktor ini akan diujikan
pada boost converter yang bekerja pada mode kontinyu dengan frekuensi switching 10 KHz. Tegangan input dikontrol dengan variac dan dinaikkan secara bertahap sampai terjadi kenaikkan suhu induktor hingga 41 derajat celcius. Pengujian dilakukan untuk mengetahui efisiensi boost converter.

ABSTRACT
Boost converter is an electronic circuit that can increase the value of the output voltage. The resulting output voltage value can be adjusted by changing the duty cycle value. The example of its application is on solar cell system. The characteristic intensity of the sun is always changing with time, weather and climate. It makes solar cell was not optimal for use if placed passively. The consequence is the voltage value changes depending on the intensity of light received by the solar cells. The inductor function in boost converter is used to store electric energy, then electric energy will be transmitted to the load. So that
the voltage at the load is the result of the input voltage plus the energy stored in the inductor, so the boost converter output voltage becomes greater than the input voltage. In this research, we will design an binoculars toroid inductor. This inductor will be tested to boost converter that works in continuous mode with 10 KHz frequency switching. The input voltage is controlled by using variac. We increase that voltage step by step until the inductor temperature showed at 41 degree celcius. The testing is to know the efficiency of boost converter toward number of inductor winding, input voltage variations and load variations.
terhadap variasi jumlah lilitan induktor, variasi tegangan input dan beban.
"
Depok: Fakultas Teknik Universitas Indonesia, 2012
S1773
UI - Skripsi Open  Universitas Indonesia Library
cover
Whitfield, John
"This is the first of a two-volume work covering the electrical principles syllabuses of all the major examining bodies including City & Guilds of London Institute's electrical craft courses. It is also suitable for a wide range of other courses, including the first three years of the BTEC electrical series.
Great care has been taken to ensure that the text fully covers the content of the syllabuses concerned, both as published and as interpreted by the examiners in the past. The book is well illustrated with almost 200 line diagrams and photographs. Theories are explained with the help of almost 100 worked examples, an important aid to understanding the practical applications, and there are more than 300 graded exercises for which numerical answers are provided as well as nearly 250 multiple choice questions with solutions.
These features make the book ideal as a class text as well as being particularly suitable for private study. A complete list of symbols, abbreviations and units is included, along with eight tables of relevant data and introduction to SI units, this system being used throughout. Each chapter concludes with a summary of the formulas introduced in it. This book will also be useful to practicing technicians wishing to extend their grasp of electrical principles to meet the rapidly expanding requirements of the industry.
"
London: Institution of Engineering and Technology, 2008
e20452660
eBooks  Universitas Indonesia Library
cover
Whitfield, John
"This is the second of a two-volume work covering the electrical principles syllabuses of all the major examining bodies including City & Guilds of London Institute's electrical craft courses. It is also suitable for a wide range of other courses, including the first three years of the BTEC electrical series.
Great care has been taken to ensure that the text fully covers the content of the syllabuses concerned, both as published and as interpreted by the examiners in the past. The book is well illustrated with almost 200 line diagrams and photographs. Theories are explained with the help of almost 100 worked examples, an important aid to understanding the practical applications, and there are more than 300 graded exercises for which numerical answers are provided as well as nearly 250 multiple choice questions with solutions.
These features make the book ideal as a class text as well as being particularly suitable for private study. A complete list of symbols, abbreviations and units is included, along with eight tables of relevant data and introduction to SI units, this system being used throughout. Each chapter concludes with a summary of the formulas introduced in it. This book will also be useful to practicing technicians wishing to extend their grasp of electrical principles to meet the rapidly expanding requirements of the industry."
London: Institution of Engineering and Technology, 2009
e20452662
eBooks  Universitas Indonesia Library
cover
Thomas, Harry E.
"Buku yang berjudul "Handbook for electronic engineers and technicians" ini ditulis oleh Harry E. Thomas. Buku ini merupakan sebuah buku panduan mengenai elektronik, diperuntukkan bagi para teknisi."
New Jersey: Prentice-Hall, 1965
R 621.38102 THO h
Buku Referensi  Universitas Indonesia Library