DOCSLIB.ORG

Nikola Tesla: Genius, Visionary, and Eccentric

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

Nikola Tesla: Genius, Visionary, and Eccentric JEFF JOHNSON n the past decade or so, obtained a letter of intro- I Nikola Tesla (1856- duction to Edison and 1943) has become a immigrated to New name to conjure York. He worked for with—at least within Edison for about a year the subculture of before having some that American phe- kind of falling out. The nomenon: the Inven- standard story is that tor. Few people today Edison told Tesla it recognize his name, would be worth although in the his- $50,000 to him if he tory of electrical could improve Edi- technology it is as im- son's electric generators portant as Thomas significantly. Tesla did Edison's. Even Tesla's this and then asked Edison admirers don't seem to for his money. "Tesla," Edi- know exactly what to make of son replied, "you don't under- him. The old saw about there stand our American humor." being a thin line between genius and Tesla then caught the attention of madness is a false dilemma: for some George Westinghouse, inventor of the there is no line at all. Tesla was one air brake, who was looking to break such rugged individualist with a foot into electrical technology and thought in each camp. Tesla's ideas on electric power Tesla was born of Serbian parents distribution had merit. Electricity can in Croatia and was raised and educated be distributed in two general forms: there and in Austria and Hungary. direct current (DC) and alternating cur- From early childhood he displayed rent (AC). Edison used DC exclusively great precociousness in technological and had a near monopoly on impor- subjects: biographers credit him with tant electrical patents at the time. devising waterwheels at the age of Tesla advocated the use of AC, which five. As a university student he ex- could be transmitted much greater celled in electrical technology. About distances and, just incidentally, 1882 he conceived the ideas that offered a way to do an end-run around would form the foundation for his Edison's DC patents. only truly successful inventions: the In 1891 Tesla and Westinghouse in- induction motor and "polyphase" stalled an AC motor and generator in power transmission. the mining town of Telluride, Colo- In 1884, while working in Paris for rado, which got him, and the state, the Continental Edison Company, a credit for the world's first practical French affiliate of Thomas Edison, he commercial use of AC motors, genera- 368 SKEPTICAL INQUIRER, Vol. 18 tors, and transmission lines. The e q u i p m e n t was APPARATOS FOE T B 1 H S M I T T I H 0 ELECTRICAL ENERGY. used to power mining APPLICATION nun jii.u, 1101. IIIIVED HIT 4, IIM. machinery from a water 1,119,732. Patented Dec 1.1914. turbine four miles distant. This installation, the Ames Power Station, is still extant and bears a marker honoring Tesla. Westinghouse then won the contract to light the 1893 Columbian Exposition in Chicago using Tesla's "polyphase" AC system—essentially the same method of trans- mitting electricity we use today. This was the first world's fair at which elec- tricity was exhibited ex- tensively. In addition to providing all the power and light at the fair, Tesla gave lectures and demon- strated a number of his inventions, most notably a metal egg that he used to show that magnetic fields could be made to rotate. ~n+^ ATTORNEYS. The egg would stand up and spin like a top o n its One of Testa's patents for transmitting electrical power narrow end when placed through the air. within the rotating field. This toy illu- and Canadian cataracts.) It also repre- strated the principle of the induction sents the end of Tesla's truly produc- motor—one of the few of Tesla's tive period. He would continue to pro- inventions that are ubiquitous today. duce remarkable ideas for decades but About this time Tesla was also devel- would never again be able to finish oping the high-voltage generator later what he started. known as the "Tesla coil" and using Tesla was now obsessed with the it to give spectacular electrical shows idea of transmitting electric power that, to people in the 1890s, must have without wires. This is different from been overwhelming. radio, the purpose of which is to trans- In the n e x t few years Tesla would mit information—sounds, pictures, supervise the i n s t a l l a t i o n of his poly- etc.—using very little energy. Tesla phase system at the new Adams wanted to pump so much raw elec- Power Station #1 at Niagara Falls. trical energy into the atmosphere (or This was the world's first true com- sometimes the earth, Tesla couldn't mercial electric power station. (Today make up his mind) that people all over there is a statue of Tesla on Goat the world would be able to run appli- Island, which divides the American ances without plugging them in, and Summer 1994 369 (No. Model.) 4 Sheets—Sheet S. N. TESLA. ELECTRO MAGNETIC MOTOR. No. 381,968. Patented May 1, 1888. fig. 15. M. i:~..~ £' V INVENTOR- lurcx~AisC.>l~~a!^- ' '^L... rj[i ,. x' fateo&t- Ojidb;. J-^Q.m^My. y^SZ^jP J^G^^&y U ATTORNEYS One of Testa's patents for the electromagnetic induction motor. 370 SKEPTICAL INQUIRER, Vol. 18 • I The Wardenclyffe Tower on Long Island, built 1901-1903. was intended for radio and wireless transmission of power across the Atlantic. ships at sea wouldn't need to carry thereafter. (Residents don't hold any fuel. He also talked of making the grudges and seem to regard the inven- upper atmosphere fluoresce—abolish- tor that knocked out their power sta- ing the dark of night forever. (One tion rather fondly. Today the city is of the most ironic aspects of current the home of the Nikola Tesla Museum Tesla-worship is that many admirers of Science and Technology.) view with alarm the low-level electro- His next big project, the Warden- magnetic fields produced by small clyffe Tower, on Long Island, in New appliances, while all maintain un- York, was the last great enterprise of bounded enthusiasm for his wireless- his life. Built in 1901-1903 it was 172 power ideas, which, if they were feet tall and was to have had a practicable, would produce fields hemispherical metal dome when com- millions of times stronger than any- pleted. It's usually described as looking thing in use today.) To this end he began build- ing larger and larger Tesla coils. In 1899-1900 he operated a laboratory in Colorado Springs that was essentially a house for a huge Tesla coil— 54 feet in diameter. During one experiment, the purpose of which is still not entirely clear, Tesla's demands on the local electric utility became so great that the town's main generator Nikola Tesla was set on fire, blacking out the Tesla was honored for his invention of the induction entire area. Tesla left shortly motor in this 1983 postage stamp. Summer 1994 371 Tesla's Inventions: A Critique esla fans credit him with a long never took his ideas beyond some T list of inventions and dis- very short-range demonstrations. coveries. These include radio, a This left the field to Guglielmo bladeless steam turbine, fluores- Marconi—whom Tesla despised— cent lighting, robotics, diathermy, who would prove the feasibility of the laser, vertical takeoff aircraft, long-range wireless communica- pulsars, and much more. Ironically, tion just a few years later. This these people seem least enthusiastic leads to a Tesla Paradox: Although toward the one area in which he anticipated Marconi and others historians of science and tech- in many ways, excellent histories nology give Tesla unqualified of early radio need make only inci- credit: AC power technology. He dental mention of Tesla. (Two is generally credited with two books that together make an excel- ubiquitous inventions: the induc- lent history of early radio tech- tion motor and "polyphase" power nology are Syntomy and Spark and transmission. All Tesla fans love his The Continuous Wave, both by Hugh induction motor, but many fear the G. J. Aitken.) This paradox recurs current that makes it go. Yet this throughout Tesla's life. is really the only area in which His bladeless turbine may have Tesla succeeded in developing a been conceptually sound, but dif- concept into a practical reality. (In ficult and expensive to manu- his honor, the scientific unit of facture, and it may have had tech- magnetic induction, or magnetic nical characteristics that limited its flux density, is named the "tesla.") appeal. Tesla fans are inclined to In other areas Tesla's achievements resent this. are not so impressive. Other claims are even more A good example is radio. In the dubious: Tesla fans broaden the mid-1890s Tesla developed all the definition of invention until it loses components needed to construct a all meaning. Tesla found that gas- practical radio system, but then filled glass tubes glowed in the seems to have lost interest—he presence of his high-voltage like a giant mushroom or salt shaker. is, however, immediately compre- Tesla obtained funds to build it by hensible as an enormous Tesla coil— signing control of his patents over to far larger than the monster at Colo- financier J. P. Morgan, apparently on rado Springs. It was never completed the understanding the tower would be and was pulled down in 1917.
Recommended publications
  • Nikola Tesla

    Nikola Tesla

    Nikola Tesla Nikola Tesla Tesla c. 1896 10 July 1856 Born Smiljan, Austrian Empire (modern-day Croatia) 7 January 1943 (aged 86) Died New York City, United States Nikola Tesla Museum, Belgrade, Resting place Serbia Austrian (1856–1891) Citizenship American (1891–1943) Graz University of Technology Education (dropped out) ‹ The template below (Infobox engineering career) is being considered for merging. See templates for discussion to help reach a consensus. › Engineering career Electrical engineering, Discipline Mechanical engineering Alternating current Projects high-voltage, high-frequency power experiments [show] Significant design o [show] Awards o Signature Nikola Tesla (/ˈtɛslə/;[2] Serbo-Croatian: [nǐkola têsla]; Cyrillic: Никола Тесла;[a] 10 July 1856 – 7 January 1943) was a Serbian-American[4][5][6] inventor, electrical engineer, mechanical engineer, and futurist who is best known for his contributions to the design of the modern alternating current (AC) electricity supply system.[7] Born and raised in the Austrian Empire, Tesla studied engineering and physics in the 1870s without receiving a degree, and gained practical experience in the early 1880s working in telephony and at Continental Edison in the new electric power industry. He emigrated in 1884 to the United States, where he became a naturalized citizen. He worked for a short time at the Edison Machine Works in New York City before he struck out on his own. With the help of partners to finance and market his ideas, Tesla set up laboratories and companies in New York to develop a range of electrical and mechanical devices. His alternating current (AC) induction motor and related polyphase AC patents, licensed by Westinghouse Electric in 1888, earned him a considerable amount of money and became the cornerstone of the polyphase system which that company eventually marketed.
  • Crowdfunding Is Hot

    Crowdfunding Is Hot

    FEBRUARY 2017 Volume 33 Issue 02 DIGEST Mad Marketing Maven HOW MADMAN MUNTZ BUILT 3 EMPIRES Army Salutes Soldier’s Invention SAVING TIME AND MONEY Big Help for Tiny Babies BUSINESS MODEL: GIVING BACK IT DOESN’T TAKE AN EINSTEIN TO KNOW ... CROWDFUNDING IS HOT $5.95 FULTON, MO FULTON, PERMIT 38 PERMIT US POSTAGE PAID POSTAGE US PRSRT STANDARD PRSRT EDITOR’S NOTE Inventors DIGEST EDITOR-IN-CHIEF REID CREAGER ART DIRECTOR CARRIE BOYD New Website Adds CONTRIBUTORS STAFF SGT. ROBERT R. ADAMS To the Conversation STEVE BRACHMANN DON DEBELAK For many of us, there’s nothing like the traditional magazine experience—hold- JACK LANDER ing the original, glossy physical product in your hands; turning the paper pages; JEREMY LOSAW tearing out portions and/or pages to display or save; and having a flexible, por- GENE QUINN table keepsake that’s never susceptible to electronic or battery failure. JOHN G. RAU A publication that provides both this and a strong internet presence is the best EDIE TOLCHIN of both worlds. With that in mind, Inventors Digest recently updated its website GRAPHIC DESIGNER (inventorsdigest.com). We wanted to make our online content more attractive and JORGE ZEGARRA streamlined, with the goal of inviting even more readers. There’s also more content than ever before; we’re loading more current articles from each issue and going INVENTORS DIGEST LLC back through the archives to pull older ones. This is part of a larger mission: to make PUBLISHER the website a central hub for the Inventors LOUIS FOREMAN Digest community and encourage readers to become active participants in national VICE PRESIDENT, INTERACTIVE AND WEB conversations involving invented-related MATT SPANGARD subjects.
  • Tesla's Magnifying Transmitter Principles of Working

    Tesla's Magnifying Transmitter Principles of Working

    School of Electrical Engineering University of Belgrade Tesla's magnifying transmitter principles of working Dr Jovan Cvetić, full prof. School of Electrical Engineering Belgrade, Serbia [email protected] School of Electrical Engineering University of Belgrade Contens The development of the HF, HV generators with oscilatory (LC) circuits: I - Tesla transformer (two weakly coupled LC circuits, the energy of a single charge in the primary capacitor transforms in the energy stored in the capacitance of the secondary, used by Tesla before 1891). It generates the damped oscillations. Since the coils are treated as the lumped elements the condition that the length of the wire of the secondary coil = quarter the wave length has a small impact on the magnitude of the induced voltage on the secondary. Using this method the maximum secondary voltage reaches about 10 MV with the frequency smaller than 50 kHz. II – The transformer with an extra coil (Magnifying transformer, Colorado Springs, 1899/1900). The extra coil is treated as a wave guide. Therefore the condition that the length of the wire of the secondary coil = quarter the wave length (or a little less) is necessary for the correct functioning of the coil. The purpose of using the extra coil is the generation of continuous harmonic oscillations of the great magnitude (theoretically infinite if there are no losses). The energy of many single charges in the primary capacitor are synchronously transferred to the extra coil enlarging the magnitude of the oscillations of the stationary wave in the coil. The maximum voltage is limited only by the breakdown voltage of the insulation on the top of the extra coil and by its dimensions.
  • Animation! [Page 8–9] 772535 293004 the TOWER 9> Playing in the Online Dark

    Animation! [Page 8–9] 772535 293004 the TOWER 9> Playing in the Online Dark

    9 euro | SPRING 2020 MODERN TIMES REVIEW THE EUROPEAN DOCUMENTARY MAGAZINE CPH:DOX THESSALONIKI DF ONE WORLD CINÉMA DU RÉEL Copenhagen, Denmark Thessaloniki, Greece Prague, Czech Paris, France Intellectually stimulating and emotionally engaging? [page 10–11] THE PAINTER AND THE THIEF THE PAINTER HUMAN IDFF MAJORDOCS BOOKS PHOTOGRAPHY Oslo, Norway Palma, Mallorca New Big Tech, New Left Cinema The Self Portrait; Dear Mr. Picasso Animation! [page 8–9] 772535 293004 THE TOWER 9> Playing in the online dark In its more halcyon early days, nature of these interactions. ABUSE: In a radical the internet was welcomed Still, the messages and shared psychosocial experiment, into households for its utopi- (albeit blurred for us) images an possibilities. A constantly are highly disturbing, the bra- the scope of online updating trove of searchable zenness and sheer volume of child abuse in the Czech information made bound en- the approaches enough to sha- Republic is uncovered. cyclopaedia sets all but obso- ke anyone’s trust in basic hu- lete; email and social media manity to the core («potential- BY CARMEN GRAY promised to connect citizens ly triggering» is a word applied of the world, no longer seg- to films liberally these days, Caught in the Net mented into tribes by physical but if any film warrants it, it is distance, in greater cultural un- surely this one). Director Vit Klusák, Barbora derstanding. The make-up artist recog- Chalupová In the rush of enthusiasm, nises one of the men and is Czech Republic, Slovakia the old truth was suspended, chilled to witness this behav- that tools are only as enlight- iour from someone she knows, ened as their users.
  • Wireless Power Transmission

    Wireless Power Transmission

    IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331, Volume 9, Issue 3 Ver. II (May – Jun. 2014), PP 01-05 www.iosrjournals.org Wireless Power Transmission 1Sudha Bhutada(Senior Lect.), 2Punit Maheshwari(R&D Eng.) 1EE Dept.SV Polytechnic College Bhopal, India 2VLSI Dept. Navigator Technologies Bhopal, India Abstract: The concept of wireless power transmission method is as old as we are using electricity. N. Tesla the father of wireless power transmission was the first to give an idea of wireless power transmission and he was keenly interested in lightning the world without using wires (WPT).Since then series of experiments were made to make feasible transmission of power where it is not possible and commercially viable by advances, inventions in electronic devices in this field. In this paper we present the concept of wireless power transmission from one place in turn to another. This concept is mainly used for reducing the transmission and distribution losses. This in turn reduces the cost of transmission and distribution and also the cost of electrical energy for the consumers. In this paper we discussed the methods, recent developments in WPT, its merits, demerits and applications. Keywords: Wireless Power Transmission WPT, Radio Frequency RF I. Introduction We know our present system of overhead transmission and distribution has biggest disadvantage is percentage of power loss is around 26 to 28 % during transmission and distribution which is because of resistance of wires of grid. WRI (World resources Institute) says that India's electricity grid has highest T&D losses in the world around 27%.
  • Download [1.94

    Download [1.94

    The essential Nikola Tesla: peacebuilding endeavor © 2015 Tesla Memory Project, UNESCO Center for Peace. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, without the prior permission of the publisher Published by Tesla Memory Project UNESCO Center for Peace TESLIANUM Energy Innovation Center Editorial board Dragoljub Martinović Mirjana Prljević Srdjan Pavlović Guy Djoken Editor in chief Aleksandar Protić We appreciate the help of Peace and Crisis Management Foundation for their precious help in publishing The essential Nikola Tesla : peacebuilding endeavor CONTENTS INTRODUCTION 17 Robert Curl: Tesla’s unique place in the history of invention 21 Gordana Vunjak- Novaković: Nikola Tesla - a pure genius and ultimate humanitarian 25 Guy Djoken: Nikola Tesla, Advocate for the Human Condition and Martyr for a greedless society 30 Mirjana Prljević: Tesla, the world strategist 34 Dragoljub Martinović: Wonderful Tesla – inspiration and guidepost 38 Jean Echenoz: Character of an erudite 42 Zorica Civrić: Tesla and Shakespeare: Similarities of genius and heroic drama 44 Ranko Rajović, Uroš Petrović: Nikola Tesla as the inspiration to establish a program for development of children’s integral potentials 49 Yves Lopez: Nikola Tesla inspiring UNESCO 55 Natasha Cica: THINKtent Tesla 59 Romilo Knežević: Tesla - Scientist, “Homo Theurgos” and Saint 63 Aleksandra Ninković-Tašić: Michael Pupin and Nikola Tesla: new perspective on the history of science 67 Rave Mehta:
  • Extracting Microrna-Gene Relations from Biomedical Literature Using Distant Supervision

    Extracting Microrna-Gene Relations from Biomedical Literature Using Distant Supervision

    RESEARCH ARTICLE Extracting microRNA-gene relations from biomedical literature using distant supervision Andre Lamurias1*, Luka A. Clarke2, Francisco M. Couto1 1 LaSIGE, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal, 2 BioISI: Biosystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal * [email protected] a1111111111 a1111111111 a1111111111 Abstract a1111111111 a1111111111 Many biomedical relation extraction approaches are based on supervised machine learning, requiring an annotated corpus. Distant supervision aims at training a classifier by combining a knowledge base with a corpus, reducing the amount of manual effort necessary. This is particularly useful for biomedicine because many databases and ontologies have been made available for many biological processes, while the availability of annotated corpora is OPEN ACCESS still limited. We studied the extraction of microRNA-gene relations from text. MicroRNA reg- Citation: Lamurias A, Clarke LA, Couto FM (2017) Extracting microRNA-gene relations from ulation is an important biological process due to its close association with human diseases. biomedical literature using distant supervision. The proposed method, IBRel, is based on distantly supervised multi-instance learning. We PLoS ONE 12(3): e0171929. doi:10.1371/journal. evaluated IBRel on three datasets, and the results were compared with a co-occurrence pone.0171929 approach as well as a supervised machine learning algorithm. While supervised learning Editor: Quan Zou, Tianjin University, CHINA outperformed on two of those datasets, IBRel obtained an F-score 28.3 percentage points Received: September 22, 2016 higher on the dataset for which there was no training set developed specifically. To demon- Accepted: January 29, 2017 strate the applicability of IBRel, we used it to extract 27 miRNA-gene relations from recently published papers about cystic fibrosis.
  • Tesla's Connection to Columbia University by Dr. Kenneth L. Corum

    Tesla's Connection to Columbia University by Dr. Kenneth L. Corum

    * Tesla’s Connection to Columbia University by Kenneth L. Corum and James F. Corum, Ph.D. “The invention of the wheel was perhaps rather obvious; but the invention of an invisible wheel, made of nothing but a magnetic field, was far from obvious, and that is what we owe to Nikola Tesla.” Professor Reginald Kapp, 1956 INTRODUCTION The Electrical Engineering curriculum at Columbia University, though not the first in the US, is one of the oldest and most respected EE programs in the world. From the beginning, a conscientious effort was made to base it on a foundation of science. It has been guided by the specific philosophy stated by Professor Michael Pupin: “Professor Crocker and I maintained that there is an ‘electrical science’ which is the real soul of electrical engineering.” Arguably the most stunning and significant lecture in modern history was presented one spring evening, more than a century ago, at Columbia University. The wealth of nations turned on its merits. Weighing on the balances would be our vast cities, civilization, and quality of life. But, what was it? . .Whatever it was, its impact has been as momentous for the progress and prosperity of civilization as the invention of the wheel! . It was Tesla’s great discovery and analysis of the rotating magnetic field, and a means for the electrical distribution of energy.1 As a result of the analysis presented in this lecture, the great Falls of Niagara would soon be harnessed for the benefit of mankind and launch civilization into the “Electromagnetic Century”. The Engineering Council for Professional Development (now called ABET) has defined “Engineering” as “that profession which utilizes the resources of the planet for the benefit of mankind”.
  • Prodigal Genius BIOGRAPHY of NIKOLA TESLA 1994 Brotherhood of Life, Inc., 110 Dartmouth, SE, Albuquerque, New Mexico 87106 USA

    Prodigal Genius BIOGRAPHY of NIKOLA TESLA 1994 Brotherhood of Life, Inc., 110 Dartmouth, SE, Albuquerque, New Mexico 87106 USA

    Prodigal Genius BIOGRAPHY OF NIKOLA TESLA 1994 Brotherhood of Life, Inc., 110 Dartmouth, SE, Albuquerque, New Mexico 87106 USA "SPECTACULAR" is a mild word for describing the strange experiment with life that comprises the story of Nikola Tesla, and "amazing" fails to do adequate justice to the results that burst from his experiences like an exploding rocket. It is the story of the dazzling scintillations of a superman who created a new world; it is a story that condemns woman as an anchor of the flesh which retards the development of man and limits his accomplishment--and, paradoxically, proves that even the most successful life, if it does not include a woman, is a dismal failure. Even the gods of old, in the wildest imaginings of their worshipers, never undertook such gigantic tasks of world- wide dimension as those which Tesla attempted and accomplished. On the basis of his hopes, his dreams, and his achievements he rated the status of the Olympian gods, and the Greeks would have so enshrined him. Little is the wonder that so-called practical men, with their noses stuck in profit-and-loss statements, did not understand him and thought him strange. The light of human progress is not a dim glow that gradually becomes more luminous with time. The panorama of human evolution is illumined by sudden bursts of dazzling brilliance in intellectual accomplishments that throw their beams far ahead to give us a glimpse of the distant future, that we may more correctly guide our wavering steps today. Tesla, by virtue of the amazing discoveries and inventions which he showered on the world, becomes one of the most resplendent flashes that has ever brightened the scroll of human advancement.
  • The Fight to Preserve Tesla's Wardenclyffe Laboratory

    The Fight to Preserve Tesla's Wardenclyffe Laboratory

    The Fight to Preserve Tesla’s Wardenclyffe Laboratory Marianne Macy Excerpt from Margaret Cheney’s Tesla: Man Out of Time (Barnes and Noble Books, 1981, pp. 173-175) The world system for broadcasting—a concept designed to incorporate almost every aspect of modern communications—was all over but the mourning. Yet as long as the tower stood, Tesla continued his efforts to complete it. Exactly when all the workers left, no one could say. Thomas R. Bayles, the general passenger agent of the railroad station just across the road from the abandoned plant, only noticed that passengers had stopped getting off there. A caretaker remained on duty for a time. When curi- ous journalists or research engineers showed up they were allowed to climb to the tower top with the sweeping view of Long Island Sound. For all that the tower looked so light, it was built entirely without metal, even down to the wooden pegs holding together the wooden uprights and cross members. After abandoning the plan for covering the dome with a copper sheathing, Tesla had installed a removable disk through which a beam of radiation could be projected to the zenith. The visitors found the laboratory filled with curiously complex apparatus. In addition to much glass-blowing equipment there were a com- plex machine shop with eight lathes, X-ray devices, a great variety of high-frequency Tesla coils, one of his original radio-controlled robot boats and exhibit cases filled with thousands of bulbs and tubes. There were an office, library, instrument room, electrical generators and transform- ers, and great stocks of wire and cable.
  • Wireless Transmission of Electrical Power Overview of Recent Research & Development

    Wireless Transmission of Electrical Power Overview of Recent Research & Development

    International Journal of Computer and Electrical Engineering, Vol.4, No.2, April 2012 Wireless Transmission of Electrical Power Overview of Recent Research & Development Sagolsem Kripachariya Singh, T. S. Hasarmani, and R. M. Holmukhe wireless transmission at 1891 in his “experimental Abstract— The aim of this research work is to give a overview station” at Colorado. Nikola Tesla successfully lighted a of recent researches and development in the field of wireless small incandescent lamp by means of a resonant circuit power transmission. The methods applied for wireless power grounded on one end. A coil outside laboratory with the transmission like Induction, Electromagnetic transmission, Evanescent wave coupling, Electrodynamic induction, Radio lower end connected to the ground and the upper end free. and microwave and Electrostatic Induction ,are discussed.This The lamp is lighted by the current induced in the three study also focuses on the latest technologies, merits and demerits turns of wire wound around the lower end of the coil. in this field. The economic aspects are briefly discussed. Index Terms—wireless transmission, witricity, power, solarpower I. INTRODUCTION In the past, product designers and engineers have faced challenges involving power: the continuity of supplied power, recharging batteries, optimizing the location of sensors, and dealing with rotating or moving joints. Although those Fig. 1. Tesla’s experimental lamp. challenges remain, new demands that arise from increased use of mobile devices and operation in dirty or wet environments mean that designers require new approaches to supplying power to equipment.Wireless Power Transmission from the time of Tesla has been an underdeveloped technology. Tesla had always tried to introduce worldwide wireless power distribution system.
  • UCLA Electronic Theses and Dissertations

    UCLA Electronic Theses and Dissertations

    UCLA UCLA Electronic Theses and Dissertations Title Near-Field Based Communication and Electrical Systems Permalink https://escholarship.org/uc/item/6fp808gn Author Azad, Umar Publication Date 2013 Peer reviewed|Thesis/dissertation eScholarship.org Powered by the California Digital Library University of California UNIVERSITY OF CALIFORNIA Los Angeles Near-Field Based Communication and Electrical Systems A dissertation submitted in partial satisfaction of the requirements for the degree Doctor of Philosophy in Electrical Engineering by Umar Azad 2013 ABSTRACT OF THE DISSERTATION Near-Field Based Communication and Electrical Systems by Umar Azad Doctor of Philosophy in Electrical Engineering University of California, Los Angeles, 2013 Professor Yuanxun Wang, Chair A near-field power transfer equation for an inductively coupled near-field system is derived based on the equivalent circuit model of the coupled resonant loops. Experimental results show that the proposed near-field coupling equation is trustworthy as it correctly predicts the transferred power versus distance relationship for different values of loaded quality factors at the transmitter and the receiver. Capacity performance of near-field communication (NFC) links is analyzed for noise limited and interference limited scenarios based on information theory. The analytical results provide guidelines for design of inductively coupled antenna systems as the power and capacity budget of the link is carried out. Examples of inductively coupled VLF NFC links are evaluated for different operating scenarios, demonstrating the efficacy and importance of the proposed near-field link budget. ii However, in a conventional setup of inductively coupled NFC link, the power coupled through and the bandwidth must be traded off. Direct Antenna Modulation (DAM) is a feasible scheme to break this dilemma.