28 Pages
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3,745 Words
The project work on construction of loud speaker involves some critical research and study concerned electromagnetic induction effect in transducers like loud speaker and its associated parameter required to chose a very good one this parameters are the power rating of loud speaker and the coil. The sizes were also put into consideration. During the packaging of the loud speaker box a signal conditioning R.C network was build and coupl […]
59 Pages
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11,212 Words
The various equipment generating electromagnetic radiations such as wireless phones, various electrical equipment etc. have now become a very important part of life. Life cannot be imagined without these equipment. These electromagnetic devices have various uses in domestic, industries and medicine. Induction heating is used in industries, MRI and SCAN are used to find out the abnormal conditions in human body and hyperthermia techniqu […]
ABSTRACT This work is on implementing the field strength meter. This device is a detecting circuit, the detecting unit consists of an antenna and a tune circuit which also comprises of a coil and a capacitor. The circuit picks up RF energy on its antenna and passes it to the tune circuit where all the frequencies, except one are lost in the coil. The only frequency to appear at the output of the tune circuit is the one that is equal […]
ABSTRACT This project work is on analysis of Electromagnetic Field Strength of NTA Port Harcourt, which operate at a frequency of: 210.25 MHz-Vision, 215.75MHz-Audio Channel: 10VHF, in Port Harcourt and its environs with the aid of an automated Band scanner GPS system. The measurements were carried out by taking the television station’s transmitter as a reference point at the center and selecting 24 measuring point around the transmi […]
ABSTRACT The study for the search of renewable sources of energy is now a major concern worldwide as replacement to the high demand of fossil fuels. Majority of the electricity that is generated uses the Faraday's law, the electromagnetic induction. This law led to new technologies that even brought up the misconception of free energy. Energy only becomes free if we don't have to pay for the generation of it; hence we resort t […]
ABSTRACT A white cane is used by the blind or the visually-impaired to scan the surroundings for obstacles and orientation marks, and find the correct path. The visually-impaired using a white cane still need a sighted guide when they need to walk down the street or use the stairs. This proposed project will help them reach their destination without much dependency on a sighted guide. It uses magnetic reed switches mounted on a specia […]
ABSTRACT Electricity is carried by current, or the flow of electrons. One useful characteristic of current is that it creates its own magnetic field. This is useful in many types of motors and appliances. This experiment was Conducted to show how electricity was produces using magnet. In this work, we are going to use the principle of electromagnetic induction to generate electricity. We'll be studying how the number of coils of wire […]