78 Pages
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11,547 Words
Most industrial processes require rotation of the motors in forward and reverse directions for desired periods. One good example is the automated bottle filling plant. Here the bottles move on a conveyor belt. When the bottles come under the filler, the filler comes down (the motor attached with the mechanism rotates forward) and fills the bottle (the motor stops), then it goes up (the motor rotates in reverse direction) and stops unti […]
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 […]
35 Pages
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6,522 Words
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 to abundant sources […]
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 DC motors are widely used in industries because of its versatile characteristics and because of power electronics devices its controlling is becoming sophisticated and precise, but on the other hand because of the power electronics devices power factor and total harmonics distortion problem is becoming more prominent. In this paper DC motor controlled using ATmega8 (AT89C52) microcontroller which is the heart of the system. T […]
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 cThe chopper responds by providing variable voltage to the armature for receiving desired speed in accordance with the signal received from controller via firing circuit. There are two controlling loops one for controlling current and one for controlling speed. In this way modeling of separately excited DC motor is done. The model is simulated using matlab after obtaining the complete model of the system. Simulation is done f […]