All types of Motor & Generators - AC & DC‚ Starters:Induction Motor (3 Phase):The production of a rotating magnetic field (RMF) is essential for the operation of alternating current (a.c.) induction motors. The speed of rotation of an RMF is known as the synchronous speed and this will be governed by the value of the supply frequency and the number of poles wound within each phase winding. Each of the phase windings are 120 electrical degrees apart. Synchronous speed can be calculated using the following
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Table of Contents List of tables 3 List of Figures 4 1Introduction 5 2 Circuit diagram 6 3 Circuit components 7 3.1 LDR 7 3.2 Resistors 8 3.2.1 Color code 8 3.3 IR LED 9 3.4 LED 11 3.5 OP-AMP 12 3.5.1 OP AMP LM 324 13 3.6 Transistor 15 3.6.1 Transistor 2N2222 15 3.7 SCR 16 3.7.1 SCR C106MG 18 C106MG 19 3.8V Battery 19 3.9 Photo diode 20 Principle of operation 21 3.9.1 IR Photo diode 21 3.10 Switches 22 3.11 Buzzer 23 3.11.1Mechanical buzzer 24 3.11.2 Electromechanical buzzer 24 3.11.3 Piezo buzzer
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Name ______________________________ ECE 201 Final Exam August 4‚ 2010 By signing below‚ I certify that the work submitted on this examination is my own‚ and that I have adhered to fair standards of academic honesty. This exam is void unless signed. _________________________________ signature Instructions a) Write your name on the front page ONLY. b) Show all your work for the following problems so that partial credit can be assigned. Cross out clearly any work which is to be disregarded. Be certain
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meters. What are the strength and the direction of the electric field at (2.0 m‚ 2.2 m)? 5. A battery with an emf of 75 V is connected to the two capacitors shown in Figure. Afterward‚ the charge on capacitor 2 is 655 µC. What is the capacitance of capacitor 2? [pic] 6. Consider the circuit in Figure‚ in which R = 12 [pic].
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SIMULATION FOREGROUND READING Back Bay Battery‚ Inc. Overview The battery industry is enormous‚ with worldwide revenues of approximately $45 billion. It is highly fragmented with at least 20 major manufacturers in each technology segment. Because of the wide range of applications of batteries‚ companies have tended to specialize in a particular technology or market application. Disposable batteries‚ such as the widely available carbon-zinc and alkaline cells‚ are available in standard sizes
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sensor history Index 02 Introduction 03 The Fairchild Semiconductor Days 05 The National Semiconductor Days 08 The Sensym Days 12 Art Zias 14 Next Sensors 16 All Sensors 16 Hans Keller 17 Other Silicon Valley Sensor Companies 21 Other US Silicon MEMS Companies 27 Silicon Senors in Europe and the Rest of the World 30 Significant Applications 32 The Millionaires Club 33 Some People to Remember 34 Some Comments from Art Zias 36 The Author 01 all sensors Introduction There are certain stories
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with respect to the voltage traveling through the capacitor. Principles: One of the main principles of this experiment is defined by V = VB [1 – exp (-t/RC)] for a charging capacitor and furthermore‚ τ is defined by resistance multiplied by capacitance(R * C). Thus‚ it is important to understand that as the capacitor is charged‚ over time the voltage will increase rapidly and eventually level off. Also‚ the other principle of this experiment is defined by by V = VB [exp (-t/RC)] for when a capacitor
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A. VOLATILE MEMORY Volatile memory‚ also known as volatile storage‚ is computer memory that requires power to maintain the stored information‚ unlike non-volatile memory which does not require a maintained power supply. It has been less popularly known as term Dynamic random access memory (DRAM) is a type of random access memory that stores each bit of data in a separate capacitor within an integrated circuit. Since real capacitors leak charge‚ the information eventually fades unless the capacitor
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Volume 3‚ Issue 4‚ April 2013 ISSN: 2277 128X International Journal of Advanced Research in Computer Science and Software Engineering Research Paper Available online at: www.ijarcsse.com An Attendance Monitoring System Using Biometrics Authentication Seema Rao‚ Prof.K.J.Satoa CSE‚CSVTU Chhattisgarh‚ India Abstract- Biometric technology that involves the identification and verification of individuals by analyzing the human fingerprint characteristics has been widely used in various aspect
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DIFFERENTIAL EQUATIONS: A SIMPLIFIED APPROACH‚ 2nd Edition DIFFERENTIAL EQUATIONS PRIMER By: AUSTRIA‚ Gian Paulo A. ECE / 3‚ Mapúa Institute of Technology NOTE: THIS PRIMER IS SUBJECT TO COPYRIGHT. IT CANNOT BE REPRODUCED WITHOUT PRIOR PERMISSION FROM THE AUTHOR. DEFINITIONS / TERMINOLOGIES A differential equation is an equation which involves derivatives and is mathematical models which can be used to approximate real-world problems. It is a specialized area of differential calculus but it involves
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