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UMAR SIDIK

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(ST) Electrical and Electronic Engineering, Universitas Sumatera Utara, Indonesia

(MSc) Mechanical Engineering, National Defence University of Malaysia, Malaysia
Phone: +62214354614
Address: Jl.Swasembada Barat XII/14 Jakarta 14320

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Papers by UMAR SIDIK

Fluid Contaminant Control as an Essential Technique to Implement Proactive Maintenance for Bearing Elements

Maintenance brings a work to ensure bearing element runs as its function. A good maintenance mana... more Maintenance brings a work to ensure bearing element runs as its function. A good maintenance management system is able to prevent health and safety problems, result in low cost, and high quality of life. On the other hand, proactive maintenance is not like predictive/preventive maintenance due to proactive maintenance is aimed for failure root cause, not just symptoms. According to the bearing division of TRW that contamination is the number one cause of bearing damage that leads premature removal. Furthermore, the amount of damage caused by solid contaminant passing between the rolling and sliding surface of an anti-friction bearing is proportional to the size and concentration of contaminants. Therefore, this is important to do particle counting on lube oil samples. Fluid contaminant level must be frequently monitored to verify filter performance and to provide the essential "feedback" that gives integrity to a contamination control program.

Transistor Amplifier

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

The Unijunction Transistor

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

Pada prinsipnya sebuah penapis aktif (active filter) merupakan rangkaian penapis filter) yang dis... more Pada prinsipnya sebuah penapis aktif (active filter) merupakan rangkaian penapis filter) yang disusun dengan penguat-penguat operasional (op-amp) atau transistor. Pada penapis aktif (active filter) tersebut induktor tidak diikutsertakan dan hal ini merupakan suatu yang menguntungkan karena ukuran dan biaya induktor yang relatif besar. Keuntungan tanpa menggunakan induktor tersebut sangat terlihat pada penapis-penapis (filter) yang memiliki frekuensi putus (cut off) sebesar 100 Hz atau kurang. Pada umumnya penapis-penapis (filter) adalah rangkaian yang dapat melewatkan sinyal-sinyal dengan frekuensi tertentu dan menolak sinyal-sinyal dengan frekuensi lainnya. Karakteristik yang terdapat pada penapis-penapis (filter) tersebut dinyatakan dengan selectivity. Pada penapis-penapis aktif (active filter), transistor ataupun penguat operasional (op-amp) dikombinasikan dengan rangkaian RC , RL atau RLC . Penapis-penapis aktif (active filter) tersebut memberikan penguatan tegangan dan sementara itu rangkaian pasif akan memilih frekuensi. Berdasarkan karakteristik umumnya, penapis-penapis aktif (active filter) dapat digolongkan ke dalam 4 (empat) bagian, yaitu:

The Operational Amplifier

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

b) Gambar 4.1. (a) dan (b). Berbagai jenis induktor (inductor). Gambar 4.2. Sebuah trafo (transfo... more b) Gambar 4.1. (a) dan (b). Berbagai jenis induktor (inductor). Gambar 4.2. Sebuah trafo (transformator). Pada prinsipnya perpindahan elektron pada sebuah konduktor akan mengakibatkan terjadinya perubahan garis-garis fluks pada konduktor tersebut. Perubahan garis-garis fluks tersebut akan menginduksikan sebuah gaya elektromagnetik (e.m.f) ke dalam sebuah rangkaian. Gaya elektromagnetik (e.m.f) yang terdapat pada rangkaian disebut dengan induktansi dan rangkaian tersebut dinyatakan telah memiliki induktansi pada saat itu. Induktor seperti yang terlihat pada gambar 4.1 merupakan sebuah komponen elektronika yang dapat menginduksikan gaya elektromagnetik (e.mf) ke dalam sebuah rangkaian dengan memanfaatkan perubahan garisgaris fluks atau secara sederhana induktor adalah komponen elektronika yang dapat membangkitkan induktansi. Gaya elektromagnetik (e.m.f) yang terdapat pada konduktor atau yang selanjunya disebut sebagai induktansi dapat membentuk sebuah medan magnet. Medan magnet tersebut dapat mengimbaskan tegangan pada

Electronic Basic

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

The Emitter Follower

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

The Capacitor for Audio Purpose

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

The Capacitor Usage

Umar Sidik, CV. Electronusa Mechanical Engineering, 2012

The Designing and Implementation of Educational Software, Case Study: The socialiszation of Efficiently Electrical Power Utilization

Umar Sidik, Universitas Sumatera Utara, 2011

For the moment the level of energy consumption in Indonesia have been exceeding of the energy sup... more For the moment the level of energy consumption in Indonesia have been exceeding of the energy supply. The level of energy consumption that exceed of the energy supply causing the crisis of energy in Indonesia. The comprehensively energy consumption consist of household 23%, industry 38% and transportation 39%. Although the energy consumption of household only 23% from all of energy consumption, but being our attention that the another energy consumption such that industry and transportation are excited by household energy consumption. So, the increasing of household energy consumption will increase the energy consumption of industry and transportation. Although the part of production will be exported but actually any part of them will give back to our country. In other way, this is a way to increase the energy consumption in this moment. We need to change our habit which usually using the energy in high awful with the energy saving life style. To do this action, we need a methode to transfer our knowledge to the peoples by using human computer interaction which need a software. The software which has to implemented in educational way and it can happen by using a language programming. Visual Basic 6.0 is one of object oriented programming which can help us to implement the action for educational software in energy saving.

The Utilization of Ultrasonic Wave Modulated by Gamma Ray (g) for Detecting Victims Through Carbon-14 (C− 14) from inside as Navigational Aids in Evacuation of …

In the principle that evacuation of inhabitant is an inhabitant transference from dangerous area ... more In the principle that evacuation of inhabitant is an inhabitant transference from dangerous area like tsunami disaster, flood, conflagration and landslide to safety zone of the disaster. The result of the evacuation of inhabitant will be optimal if be done by evacuation functionary that have good physical and mental along with modern equipments of evacuation. The evacuation functionary which have good physical and mental can be obtained from earthling, whereas the modern equipments of evacuation can be obtained from development of science and technology in science institution at Indonesia and other land. Research Center for Noise and Vibration Control or can also be called as N/VCRC has a topic of research that relate to equipments of evacuation, that is "The utilization of ultrasonic wave modulated by gamma ray ( ) γ for detecting victims through carbon-14 ( ) 14 − C from inside as navigational aids in evacuation of disaster victims". The ultilization of ultrasonic wave has restrictiveness to the material, that is ultrasonic wave will be rebound if hit material based on its specific acoustic impedance. The restrictiveness of ultrasonic wave can be optimal if the ultrasonic wave has an ability to penetrate the solid substance, so it can be used for closed like subterranean and fallen buildings. The ability of ultrasonic wave to penetrate the solid substance can be obtained by modulation of ultrasonic wave and gamma ray. The modulation and demodulation of ultrasonic and gamma ray will produce a wave which still have ultrasonic characteristic and eve have characteristic of gamma ray. The ultrasonic characteristic of modulated wave will interact with carbon-14 ( ) 14 − C contained inside of human.

Fluid Contaminant Control as an Essential Technique to Implement Proactive Maintenance for Bearing Elements

Maintenance brings a work to ensure bearing element runs as its function. A good maintenance mana... more Maintenance brings a work to ensure bearing element runs as its function. A good maintenance management system is able to prevent health and safety problems, result in low cost, and high quality of life. On the other hand, proactive maintenance is not like predictive/preventive maintenance due to proactive maintenance is aimed for failure root cause, not just symptoms. According to the bearing division of TRW that contamination is the number one cause of bearing damage that leads premature removal. Furthermore, the amount of damage caused by solid contaminant passing between the rolling and sliding surface of an anti-friction bearing is proportional to the size and concentration of contaminants. Therefore, this is important to do particle counting on lube oil samples. Fluid contaminant level must be frequently monitored to verify filter performance and to provide the essential "feedback" that gives integrity to a contamination control program.

Transistor Amplifier

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

The Unijunction Transistor

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

Pada prinsipnya sebuah penapis aktif (active filter) merupakan rangkaian penapis filter) yang dis... more Pada prinsipnya sebuah penapis aktif (active filter) merupakan rangkaian penapis filter) yang disusun dengan penguat-penguat operasional (op-amp) atau transistor. Pada penapis aktif (active filter) tersebut induktor tidak diikutsertakan dan hal ini merupakan suatu yang menguntungkan karena ukuran dan biaya induktor yang relatif besar. Keuntungan tanpa menggunakan induktor tersebut sangat terlihat pada penapis-penapis (filter) yang memiliki frekuensi putus (cut off) sebesar 100 Hz atau kurang. Pada umumnya penapis-penapis (filter) adalah rangkaian yang dapat melewatkan sinyal-sinyal dengan frekuensi tertentu dan menolak sinyal-sinyal dengan frekuensi lainnya. Karakteristik yang terdapat pada penapis-penapis (filter) tersebut dinyatakan dengan selectivity. Pada penapis-penapis aktif (active filter), transistor ataupun penguat operasional (op-amp) dikombinasikan dengan rangkaian RC , RL atau RLC . Penapis-penapis aktif (active filter) tersebut memberikan penguatan tegangan dan sementara itu rangkaian pasif akan memilih frekuensi. Berdasarkan karakteristik umumnya, penapis-penapis aktif (active filter) dapat digolongkan ke dalam 4 (empat) bagian, yaitu:

The Operational Amplifier

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

b) Gambar 4.1. (a) dan (b). Berbagai jenis induktor (inductor). Gambar 4.2. Sebuah trafo (transfo... more b) Gambar 4.1. (a) dan (b). Berbagai jenis induktor (inductor). Gambar 4.2. Sebuah trafo (transformator). Pada prinsipnya perpindahan elektron pada sebuah konduktor akan mengakibatkan terjadinya perubahan garis-garis fluks pada konduktor tersebut. Perubahan garis-garis fluks tersebut akan menginduksikan sebuah gaya elektromagnetik (e.m.f) ke dalam sebuah rangkaian. Gaya elektromagnetik (e.m.f) yang terdapat pada rangkaian disebut dengan induktansi dan rangkaian tersebut dinyatakan telah memiliki induktansi pada saat itu. Induktor seperti yang terlihat pada gambar 4.1 merupakan sebuah komponen elektronika yang dapat menginduksikan gaya elektromagnetik (e.mf) ke dalam sebuah rangkaian dengan memanfaatkan perubahan garisgaris fluks atau secara sederhana induktor adalah komponen elektronika yang dapat membangkitkan induktansi. Gaya elektromagnetik (e.m.f) yang terdapat pada konduktor atau yang selanjunya disebut sebagai induktansi dapat membentuk sebuah medan magnet. Medan magnet tersebut dapat mengimbaskan tegangan pada

Electronic Basic

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

The Emitter Follower

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

The Capacitor for Audio Purpose

Umar Sidik, CV. Electronusa Mechanical Engineering, 2013

The Capacitor Usage

Umar Sidik, CV. Electronusa Mechanical Engineering, 2012

The Designing and Implementation of Educational Software, Case Study: The socialiszation of Efficiently Electrical Power Utilization

Umar Sidik, Universitas Sumatera Utara, 2011

For the moment the level of energy consumption in Indonesia have been exceeding of the energy sup... more For the moment the level of energy consumption in Indonesia have been exceeding of the energy supply. The level of energy consumption that exceed of the energy supply causing the crisis of energy in Indonesia. The comprehensively energy consumption consist of household 23%, industry 38% and transportation 39%. Although the energy consumption of household only 23% from all of energy consumption, but being our attention that the another energy consumption such that industry and transportation are excited by household energy consumption. So, the increasing of household energy consumption will increase the energy consumption of industry and transportation. Although the part of production will be exported but actually any part of them will give back to our country. In other way, this is a way to increase the energy consumption in this moment. We need to change our habit which usually using the energy in high awful with the energy saving life style. To do this action, we need a methode to transfer our knowledge to the peoples by using human computer interaction which need a software. The software which has to implemented in educational way and it can happen by using a language programming. Visual Basic 6.0 is one of object oriented programming which can help us to implement the action for educational software in energy saving.

The Utilization of Ultrasonic Wave Modulated by Gamma Ray (g) for Detecting Victims Through Carbon-14 (C− 14) from inside as Navigational Aids in Evacuation of …

In the principle that evacuation of inhabitant is an inhabitant transference from dangerous area ... more In the principle that evacuation of inhabitant is an inhabitant transference from dangerous area like tsunami disaster, flood, conflagration and landslide to safety zone of the disaster. The result of the evacuation of inhabitant will be optimal if be done by evacuation functionary that have good physical and mental along with modern equipments of evacuation. The evacuation functionary which have good physical and mental can be obtained from earthling, whereas the modern equipments of evacuation can be obtained from development of science and technology in science institution at Indonesia and other land. Research Center for Noise and Vibration Control or can also be called as N/VCRC has a topic of research that relate to equipments of evacuation, that is "The utilization of ultrasonic wave modulated by gamma ray ( ) γ for detecting victims through carbon-14 ( ) 14 − C from inside as navigational aids in evacuation of disaster victims". The ultilization of ultrasonic wave has restrictiveness to the material, that is ultrasonic wave will be rebound if hit material based on its specific acoustic impedance. The restrictiveness of ultrasonic wave can be optimal if the ultrasonic wave has an ability to penetrate the solid substance, so it can be used for closed like subterranean and fallen buildings. The ability of ultrasonic wave to penetrate the solid substance can be obtained by modulation of ultrasonic wave and gamma ray. The modulation and demodulation of ultrasonic and gamma ray will produce a wave which still have ultrasonic characteristic and eve have characteristic of gamma ray. The ultrasonic characteristic of modulated wave will interact with carbon-14 ( ) 14 − C contained inside of human.