Download Tag: THE DESIGN AND CONSTRUCTION

ABSTRACT This uninterruptible power supplies device has the capability of converting from 12volts D.C to 220volts alternating current at the frequency of 50Hz with the help of a step-up transformer. The main importance of this device is its ability to ensure absolute continuity of power to the computerized control system thereby protecting a critical equipment from electrical supply failure. Ups system achieve this by rectifying the mains supply, using the ...

CHAPTER ONE INTRODUCTION 1.1     BACKGROUND OF THE STUDY This project gives the insight on the design and construction of a transmission power line vandalism detector system. Vandalism means destructive action. It is a hateful and deliberate defacement/destruction of somebody else’s property or national assets like the high-voltage transmission power lines, transmission towers and distribution transformers, etc. The high-voltage transmission power lines strung from support towers form the backbone of the ...

ABSTRACT Hearing aid device is a small electronic gadget that is fit in or behind the ear to improve one’s hearing and consequently communication ability.This research work involves the design and development of a hearing aid device withpre-amplifier; an acoustic signal picked-up using a condenser microphone. TDA 2822M IC is configured to produce an audio amplification which is converted to audio signal through a headphone. Designed equations were employed to ...

CHAPTER ONE INTRODUCTION The purpose of this project is to produce a narrative description of the design and construction of a microcontroller based dot matrix advert display. Firstly computer aided design is the modeling of physical system on Computers allowing both interactive and automatic analysis of design variant and the expression of design in a form suitable for manufacturing. This follows by explaining the microcontroller based dot matrix advert display ...

ABSTRACT This project carried out is the construction of 2KVA inverter. It is an Electrical /Electronic device that is used to convert direct current (DC) to alternating current AC, which possible lead to power supply enhancement to the society. This project was constructed to over come the failure of electricity in the society and also help in protecting electrical and electronic equipment that is used in the home or company. ...

ABSTRACT The early transmitter for radio broadcasting is so big and bulky that they do occupy numerous spaces. The circuitries are mainly designed with valves, which are big in sizes. With the advent of semiconductor materials such as transistors electronic equipment are now becoming miniaturized such that small transmitters are now becoming handy and compact. In line with this we choose to design a complete radio broadcasting equipment tat is ...

  CHAPTER ONE INTRODUCTION BACKGROUND OF THE STUDY All modern engineering system include certain aspects of control systems at some point in their broadcast sense, control engineering and  the associated theory are concerned with the means by which systems may be made to behave an a desired way. The system on this thesis is a DC – AC converter, which is an apparatus which is used for conversion of Direct Current ...

CHAPTER ONE INTRODUCTION BACKGROUND OF THE STUDY The vehicle system control using telemetry application is all about using a radio wave to control and activate certain events such as the car horn, car head light, car ignition (starter) and car air conditioner etc. This is achieved by using various tone frequencies by using an encoder via a radio frequency transmitter (low power) that provides the carrier frequency for these tones. ...

CHAPTER ONE INTRODUCTION BACKGROUND OF THE STUDY The machine is specially designed for industrial and agricultural welding. It is only powered from A.C power source for all welding. The unit is designed to operate on single phase 240v A.C. supply and it is mainly a transformer unit. It is capable of operating from 25 Amps socket for most of its output range. The current drawn form the mains supply may ...

ABSTRACT This project which comprise of many chapters that deals extensively with designs and construction of battery charger with auto-cut off which is capable of charging a 12 volts battery. In this construction research, designs was carried out which historic research was used to break down and evaluate to a low level understating of what an auto-cut of charger system is all and how it can be constructed and the ...

ABSTRACT This is a technical project write-up design and construction were carried out by me with deep intensive and extensive research work under the strict supervisor of Engr K.C Ugwu. I all give credit to the authors of the textbooks whose I referred to in the cause of writing this project and its subsequent design and construction. In this project, I shed light on the basic principle of operation, the ...