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"Concerning with the local low capability in producing and manufacturing the Power sector components and equipment, in Contrast, in PJP-II (the second phase of national long term development) this mentioned infrastructure will be progressively developed. For this purpose a wide research program on power sector components and equipment should be carried out in the University of Indonesia for strengthening the engineering and manufacturing capability of the industries in the power sectors especially the medium and small scale Industries (SA/fl). The first phase of the study will focus on the prototype design, fabrication method and procedures and mechanical performance testing of 500 KV transmission line spacer damper. In this study, the mechanical testing on the prototype spacer damper will consist of structural static and fatigue test, Test on rubber part and damping study, In the next phase for complete prototyping, high voltage electrical testing (corona testing) will be also conducted."

"The advantages optical fiber in communication field are widely utilized in developing steps from electrical communication to optical communication. Optical fiber communication promise extremely high data rate over long distance transmission without needing to amplify and retransmit along the way. It is well understood that if frequency of the transmitted signals. is increased some problems such as electromagnetic interferences. crosstalk and signal distortions will appear. Those difficulties can. be solved or eliminated by using optical fiber cable. instead of copper cable.Optical fiber used to transmit and to receive information signal mutinously was usually separated in difference fibers for transmitting and receiving direction. I n this thesis a bi-directional transmission system through a single fiber with same wavelength by the use of rod lenses was constructed. A simple circuit design techniques have been used in order to make transmitter and receiver. To combine and to separate transmitter and receiver in each side to and from the fiber, two quarter-pitch GRIN rod lenses functioning as optical directional coupler was used.The result of the experiment as a model of bi-directional optical communication system shows a good performance with an appropriate reliability. The measurement results of power distribution loss. crosstalk and signal transmission quality that have been evaluated to conclude the entire result."

"ABSTRAKSistem bilateral teleoperation 4 kanal dengan beda referensi gerak antaramanipulator robot master dan manipulator robot slave membutuhkan sebuahmetode transformasi untuk mengubah masing-masing referensi gerak kedua robotagar sesuai dengan tipe pengendali yang digunakan pada kedua robot. Robotmaster mempunyai referensi gerak berupa posisi koordinat ruang kartesian dariujung lengan manipulatornya sedangkan robot slave mempunyai referensi gerakberupa kecepatan sudut untuk aktuator-aktuator pada manipulatornya. Pengendalipada robot master menggunakan task space control sedangkan pengendali padarobot slave menggunakan joint velocity space control. Untuk menciptakan sistembilateral teleoperation 4 kanal diperlukan sebuah metode untukmentransformasikan torsi dari masing – masing aktuator robot. Transformasi torsidiaplikasikan sebagai fungsi dari perpindahan ujung lengan manipulator untukrobot master dan sebagai fungsi dari perubahan sudut sendi pertama manipulatoruntuk robot slave. Pada skripsi ini metode transformasi referensi gerak yangdirancang menghasilkan perbedaan nilai terbesar antara referensi robot master danreferensi umpan balik robot slave sebesar 1,147 milimeter untuk gerak robot majudan 0,859 milimeter untuk gerak robot mundur.

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ABSTRACTA 4 channels bilateral teleoperation system with different inputreferences for both master motion and slave motion need a method fortransforming their input references. This transformation is needed in order tomake these references suitable with controllers that is used by both robots. Aposition in Cartesian space that represent a position of their end effectors is usedas a motion reference for master robot while angular velocity is used as motionreference for slave robot. These different input references will lead to thedifference of controller types that are used by both robots. Master robot uses taskspace control while slave robot uses joint velocity space control. To make a 4channels bilateral teleoperation system, a method for transforming torque fromrobot’s actuators is needed. Torque transformation is applied as a function of endeffector displacement for master manipulators and is applied as a function ofangular displacement of manipulator’s first link for slave manipulators. In thisundergraduate thesis, a transformation method that is designed could produce amaximum of difference value among peer manipulators of both robots at about1.147 millimeters for forward motion and about 0.859 millimeters for backwardmotion."

"Kereta listrik (tram) merupakan salah satu Mass Rapid Transportation (MRT) yang akan diaplikasikan di lingkungan kampus Universitas Indonesia. Tram menggunakan energi listrik sebagai sumber tenaga, hal itu menjadikan tram ramah terhadap lingkungan. Sumber tenaga listrik dapat dikombinasikan dengan peralatan kontrol elektronik, seperti electric drive serta Programmable Logic Controller (PLC). Berkaitan dengan hal tersebut, maka dalam penulisan tugas akhir ini akan dilakukan rancang bangun miniatur tram yang merupakan tahap awal untuk mendapatkan sistem transportasi menggunakan kereta listrik. Rancang bangun yang dilakukan adalah mendapatkan program ladder untuk mengendalikan panggilan dan pemberhentian tram pada stasiun dengan menggunakan PLC serta mengaplikasikannya kedalam miniatur tram. Miniatur terbagi atas tiga buah stasiun yang terdapat dalam sistem, dimana masing-masing stasiun terdiri dari beberapa sensor dan tombol tekan yang digunakan sebagai Input PLC. Pada tugas akhir ini telah berhasil dirancang dan dibangun serta dianalisis panggilan otomatis tram dari stasiun secara utuh, sehingga pada tahap selanjutnya dapat membantu kesempurnaan dalam pembuatan sistem transportasi menggunakan tram yang akan diaplikasikan di dalam kampus Universitas Indonesia.

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A Light Rail Train (tram) is a type of Mass Rapid Transportation (MRT) which to be applied in University of Indonesia. Tram has used electric energy as power source and it will become friendly for environment. An electric power source can combine with Programmable Logic Controller (PLC) and electric drive. This final project will be done by design and build a miniature of tram. It is an early stage to get a system of transportation using a tram.

Main purpose the project is to get a ladder program for controlling call and stop tram at station with PLC and also applicated into miniature of tram. A tram miniature consists of three station in the system, where each station have a number of push-button and censor (input in PLC). This final project have success to analyze, build and design an automatic call for tram. For the next stage, the project can help engineer making a full-system of electric train (tram) which latter will be applied in University of Indonesia."

"Penelitian ini bertujuan untuk merancang dan membuat sistem rotasi Faraday sebagai alat karakterisasi sifat Magneto-Optik minyak nabati. Besaran yang diukur adalah intensitas cahaya, besar medan magnet, dan perubahan sudut bidang getar polarisasi. Pengukuran intensitas cahaya dilakukan menggunakan BH1750, pengukuran medan magnet dilakukan menggunakan Gaussmeter. Perubahan sudut bidang getar polarisasi dilakukan oleh stepper motor yang menggerakkan lensa analisator yang sudah dipasang gear. Sumber cahaya yang digunakan adalah laser RGB dengan daya 300 mW. Pengambilan data dilakukan dengan kondisi awal sudut antara lensa Polarisator dan lensa Analisator sebesar 45º. Konstanta Verdet untuk minyak jagung dengan sumber cahaya merah adalah 0,37 mT/m. Konstanta Verdet untuk minyak jagung dengan sumber cahaya hijau adalah 0,55 mT/m. Untuk sumber cahaya biru, nilai konstanta Verdet yang didapatkan adalah 0,73 mT/m.

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This research aims to design and create Faraday’s rotation system as a tool to characterize the Magneto-Optic properties of vegetable oils. The measured magnitude is the intensity of light, the magnitude of the magnetic field, and the change in the rotation angle of polarization. Measurement of light intensity was carried out using BH1750, magnetic field measurement was carried out using Gaussmeter. Changes in the rotation angle of polarization are made by the stepper motor which drives the lens of the analyzer which has been geared. The light source used is an RGB laser with a power of 300 mW. Data is collected by the initial condition of the angle between polarizer lens and analyzer lens at 45º. The Verdet constant for corn oil with a red light source is 0.37 mT/m. The Verdet constant for corn oil with green light source is 0.55 mT/m. For blue light source, the Verdet constant value that obtained is 0.73 mT/m

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"Kereta listrik umumnya membutuhkan masinis dalam menjalankan kereta dan membuka pintu kereta. Pada skripsi ini direalisasikan miniatur kereta listrik dapat berjalan secara otomatis serta buka-tutup pintu kereta dan stasiun secara otomatis menggunakan Programmable Logic Control (PLC) dan Basic Stamp. Dalam merealisasikan miniatur kereta listrik ini, terdapat 8 sub sistem yaitu Sensor dan Rangkaian Komparator, Programmable Logic Control (PLC), Rangkaian Kontrol dan Driver PWM, Basic Stamp, Driver Motor Stepper, Driver Limit Switch , LCD, dan Power Supply. Hasil yang dicapai dalam merealisasikan miniatur kereta listrik adalah mendapatkan suatu pemrograman ladder pada PLC yang dapat berinteraksi dengan Pbasic pada mikrokontroler Basic Stamp serta mendapatkan hasil pengukuran ? pengukuran pada sub-sub sistem yang direalisasikan sehingga pada tahap selanjutnya dapat membantu kesempurnaan dalam pembuatan sistem transportasi menggunakan kereta listrik yang akan diaplikasikan di dalam kampus Universitas Indonesia. Diharapkan dengan adanya skripsi ini dapat memudahkan dalam merealisasikan ke kondisi nyata yang akan diperlihatkan dalam realita kehidupan masyarakat kampus Universitas Indonesia.

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Tramcar in general requires engine-driver in implementing tramcar and opens door of tramcar. At this final task realized tramcar miniature which can run automatically and open - close door of car and halting point automatically applies Programmable Logic Control (PLC) and Basic Stamp. In realizing this tramcar miniature, there is 8 system sub that is Sensor and Comparator circuit, Programmable Logic Control (PLC), Control Circuit and Driver PWM, Basic Stamp, Driver Motor Stepper, Driver Limit Switch, LCD, and Power Supply.

Result reached in realizing tramcar miniature is get a programming of ladder at PLC which interaction can with Pbasic at microcontroller Basic Stamp and gets result of gauging at system subs realized so that at phase hereinafter can assist perfection in making of transportation system applies tramcar which will be application in campus University of Indonesia. Expected with existence of this final project can facilitate in realizing to condition of reality which will be showed in reality life of campus public University of Indonesia."