cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota adm. jakarta barat,
Dki jakarta
INDONESIA
Jurnal Teknik Elektro
Published by Universitas Trisakti
ISSN : -     EISSN : -     DOI : -
Core Subject : Engineering,
Electrical & Electronics Engineering
Arjuna Subject : -
Articles 81 Documents
 3   4   5   6   7 
HUBUNGAN INTENSITAS MEDAN DEKAT DENGAN DELTA PROFIL INDEKS BIAS ((X,Y)) PADA GRADE INDEKS FIBER OPTIK Meiliayana, Meiliayana
Jurnal Teknik Elektro Vol 1, No 2 (2002)
Publisher : Jurnal Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Fiber optic refractive index profile can be reconstructed from its mode field distribution. Toanalyzed this mode field image (digital image form), one formula, which derived from scalarwave equation, is needed to describe a relationship between the intensity and refractiveindex value as a radial function. This paper included numerical analysis to solve the secondorder differentiation and made the formula more suitable for computer process.Keywords: mode field distribution, scalar wave equation, refractive index, numericalanalysis
PERHITUNGAN PROFIL TEGANGAN PADA SISTEM DISTRIBUSI MENGGUNAKAN MATRIX ADMITANSI DAN MATRIX IMPEDANSI BUS Sukmawidjaja, Maula
Jurnal Teknik Elektro Vol 7, No 2 (2008)
Publisher : Jurnal Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

A very important problem in the design and operation of a distribution system is thecalculation of the voltage profile within specified limits at various points in the system. Inthis text we shall develop methods by which we can calculate the voltage, current, and powerat any point in a distribution line provided we know these values at one point, usually at oneend of the line. The continued development of large, high-speed digital computers havebrought about a change in the relative importance of various techniques in the solution oflarge distribution networks. One of particular importance is the introduction of busadmittance and bus impedance matrices method which will prove to be very useful in thecalculation of the voltage profile in the distribution networks.Keywords: voltage profile, bus admittance, bus impedance, matrices
Peranan Web Spider Dalam Internet Search Engine Faezal, Mochamad Fajar; Gozali, Ferrianto
Jurnal Teknik Elektro Vol 3, No 2 (2004)
Publisher : Jurnal Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Information is one of the basic necessities for human being. The complete andtimely information is needed in almost every modern human activities. With internet as aglobal computer network, we can easily retrieve and find a comprehensive information weneed from different places and experts from all over the world. With millions of web sitesalready on the Internet and thousands more being added daily, the chances of someonefinding information they need are very easy and the capabilities of search engines to helpusers in information retrieval are very important.Internet search engine is a software that responsible for spidering and indexingthe information in the Internet and maintaining a database of those information. When akeyword is entered into a search engine, it looks for that keyword in its database anddisplays any relevant records, so it is not really search the global network Internet. Thecapability of Internet Search Engine in information retrieval not only depend on the inputkeyword provided by user but also depend on the capability of the engine to build andmaintain the database due to a dynamic changes of information in the Internet.This paper provides a brief overview about techniques used by internet searchengine especially how it spidering the webs in the internet, indexing the information found inthe web pages and building the database of the information. A model of web spider isdeveloped and tested to show how web spider actually works and to investigate therelationship between the level of spidering with the capability of the search engine. Theperformance of the web spider is tested by spidering Trisakti University Web sitewww.trisakti.ac.id using various key words and level of pages.Keywords: Internet Search Engine, web spider, web site, index, database.
PENGATUR KETINGGIAN AIR OTOMATIS Prawiroredjo, Kiki; Susantio, Ignatius Melvin
Jurnal Teknik Elektro Vol 9, No 2 (2010)
Publisher : Jurnal Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The Automatic Water Level Control is a prototype circuit that controls the availability of water in a tank. The water tank has five water levels to control the pump work. The water level control system consists of two water containers, one for the water source container and the other for the water reservoir and two water pumps. The circuit consists of an infrared system, two relays to activate the water pumps and a 2x16 Liquid sensor to detect the water level, a microcontroller Atmega 8535(L) to control all the circuit Crystal Display (LCD) to display the water level in the tank reservoir and the pump condition. After the water level control circuit has been built and tested, it is known that at the minimum level position that is 30 cm between sensor and the float, the output voltage of the infrared sensor is 0,85 volt and the microcontroller will turn on both the water pumps. At the maximum level position that is 11.5 cm between sensor and the float, the output voltage of the infrared sensor is 2,17 volt and the microcontroller will turn off both of the water pumps. Keywords: Water level control, infrared sensor, Microcontroller, LCD
PENGOPTIMALAN THROUGHPUT dan KESAMARATAAN INDEKS FAIRNESS PADA JARINGAN NIRKABEL CODE DIVISION MULTIPLE ACCESS (CDMA) Ningsih, Yuli Kurnia; Wiryanto, Andy
Jurnal Teknik Elektro Vol 6, No 1 (2006)
Publisher : Jurnal Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Currently, Code Division Multiple Access (CDMA) technology was not only utilize for voicecommunication, but for data communication too. TCP throughput get important role in thiscase. Frequently, performance and unfairness index throughput which is accepted user area serious problem in the CDMA network. This paper describe about solution of unfairnessthroughput’s problem. From simulation results, index fairness every user approach one (1)with let more RTT connection so long and power control. That’s mean throughput every userhave been optimal.Keywords: throughput, TCP, Round Trip Times (RTT), Power control
ANALISIS NILAI RATA-RATA DARI SUATU MODEL JARINGAN ANTRIAN TERTUTUP Susilawati, Cecilia
Jurnal Teknik Elektro Vol 2, No 2 (2003)
Publisher : Jurnal Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

In a closed queueing network model it will use mean value analysis to determine the networkthroughput for different value of p, to find the value of p that gives maximum networkthroughput and to indicate the network bottleneck. For certain chosen values of parametersinvolved in this model, it found that the maximum network throughput is 288.1 for p=0.67.The network bottleneck is the fast server. For p>0.67 the fast server is also the networkbottleneck, but when p<0.67, the network bottleneck is the slow server.Keywords: throughput, server, job
ANALISIS SAMBARAN PETIR PADA TIANG TRANSMISI DENGAN MENGGUNAKAN METODE LATTICE Abduh, Syamsir
Jurnal Teknik Elektro Vol 1, No 2 (2002)
Publisher : Jurnal Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Power systems are often subjected to overvoltages that have their origin in atmosphericdischarges in which case they are called external or lightning overvoltages. Ligthningovervoltages remain essentially independent of the system’s design such as transmissionstower. Owing to the complexity of a the lightning phenomenon, simulation experiment hasbeen an important method to resolve such phenomenon. However, it is difficult to simulatethe distribution of lightning striking points. Previous lightning simulation expriment can’twell reflect the influence of lighning strength and direction on striking. The paper presentsthe Lattice Method to analyze lightning phenomenon strength especially for the transmissiontowerKeyword: lightning phenomenon, lattice method, transmission tower.
PERBANDINGAN MATCHING IMPEDANSI ANTENA DIPOLE SEDERHANA 152 MHz DENGAN ANTENA DIPOLE GAMMA MATCH 152 MHz Candra, Henry; Ferdinansyah, Ferdinansyah
Jurnal Teknik Elektro Vol 9, No 1 (2009)
Publisher : Jurnal Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Simple dipole antenna is an antenna which made from copper and precision size to be resonated in adjustable frequency. While gamma match dipole antenna is an antenna made with gamma match system which with adding capacitor in feed point .The design and realization of the two antennas above are compared to analyze the characteristics of both antennas to find out which has better radiation pattern, free space loss and gain antenna so it could be determined which antenna is suitable to use. The results show that both antennas have omnidirectional radiation pattern. The value of free space loss simple dipole antenna and gamma match dipole antenna is the same about 14.86 dB. The gain of simple dipole antenna is about 39.95 dB and the gain of gamma match antenna is 42.9 dB. Keywords: Antenna, Dipole, Matching Impedance, Gamma Match
ANALISIS DISPERSION POWER PENALTY PADA AREA RING-1 JARINGAN LOKAL AKSES FIBER STO GATOT SUBROTO Ningsih, Yuli Kurnia; Surjati, Indra; Sunarto, Sunarto; Hardianto, Herbowo
Jurnal Teknik Elektro Vol 5, No 1 (2005)
Publisher : Jurnal Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Fiber attenuation caused by chromatic dispersion and modal dispersion is commonlyreferred to as a dispersion power penalty. In the wave transmitted by transmitter, dispersionoccurred, caused degradation of signal quality, so that the signal receiver is not as good aswhich is being transmitted. In this paper will be discussed about the impact of dispersionpower penalty in ring-1 STO Gatot Subroto area. Analysis was done to several factors thatcan cause dispersion power penalty, which are distance, wavelength, and data rate beingused. The calculation with available data and specification has been done, so that the routeswith the biggest and the smallest dispersion power penalty can be detected. The biggestdispersion power penalty happened in Palma Citra – Umawar route at distance of 9.387 kmwith  =1550 nm and data rate 622.08 Mbps. While the smallest was 1.221 7 10  dB,happened in Tifa – STO Gatot Subroto route at distance of 1.626 km with =1310 nm anddata rate 155.52 Mbps. All those calculations were still in permissible limit, not more than 2dB. Furthermore from some routes were obtained very small dispersion power penalty. Thebigger the fiber length and data rate, the bigger the dispersion power penalty is. Finally itcan be concluded that fiber length, wavelength, and data rate are equivalent to thedispersion power penalty.Keyword: fiber optic, dispersion, Synchronous Digital Hierarchy
ROBOT PENGANTAR BARANG OTOMATIS BERBASIS MIKROKONTROLER AVR ATMEGA16 Prawiroredjo, Kiki; Iriyanto, Iriyanto
Jurnal Teknik Elektro Vol 8, No 1 (2008)
Publisher : Jurnal Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Automatic Object Delivery Robot Based on AVR ATMega16 Microcontroller is a robot thatdelivers goods to a certain location and move back to its initial position automatically, andavoids obstacles to reach any location. This Robot is built by using two stepper motors formoving forward and backward, and SHARP GP2D12 infra red sensor connectedmechanically to the servo motor in order to turn the sensor around 45 degrees to detect theexistence of any obstacle at a certain distance around the robot. Transmitter in the sensorwill transmit infra red light and if there are obstacles at a distance of 10 to 36.7 cm, the infrared light will be reflected to the sensor. AVR ATMega16 Microcontroller as the processorwill analyze the area of the obstacles at certain distance and move the robot to the areawhere there is no obstacle. After being assembled and tested, this robot can go to itsdestination and back to its initial position as programmed. There are errors as the robotreaches its destination. For example, the destination coordinate is x=2 and y=6 becomesx=1,95 and y=6, and the initial position coordinate is x=2 and y=0 becomes x=1,7 andy=0 when tested without obstacles, and the coordinate becomes x=1,4 and y=0 when testedwith obstacles. These errors occur due to inaccuracy of stepper motor rotation.Keywords: Robot, Microcontroller, stepper motor, servo motor, infrared sensor.

Page 5 of 9 | Total Record : 81

 3   4   5   6   7 

Filter by Year

2001 2010


Reset
Filter By Issues
All Issue Vol 9, No 2 (2010) Vol 9, No 1 (2009) Vol 8, No 2 (2009) Vol 8, No 1 (2008) Vol 7, No 2 (2008) Vol 7, No 1 (2007) Vol 6, No 2 (2007) Vol 6, No 1 (2006) Vol 5, No 2 (2006) Vol 5, No 1 (2005) Vol 4, No 2 (2005) Vol 4, No 1 (2004) Vol 3, No 2 (2004) Vol 3, No 1 (2003) Vol 2, No 2 (2003) Vol 2, No 1 (2002) Vol 1, No 2 (2002) Vol 1, No 1 (2001) More Issue