Free Essay

Wireless Electricity

In: Computers and Technology

Submitted By powerhouseco
Words 1074
Pages 5
Wireless Electricity
What is it?

The understanding that electricity could travel through the air has been around since Tesla. Frequencies have been used to transmit an electrical signal since the 1800’s and now the world is seeing the next level of the frequency evolution. The new standard in power is wireless and it has the ability to revolutionize nearly every industry that benefits from the use of power. Everything from a small toy to a large industrial air handler can be run without wires and instead be a standalone unit that never loses power.
The basis of wireless power transfer occurs between a handful of phenomena that have been discovered by scientists recently. Magnetism is something that we have been exposed to since early in our lives. Electromagnetism we have always known to be magnets coupled with electricity makes the magnet stronger. Magnetic induction has been around since 1831, it was theorized by Michael Faraday to be the medium to induce current in a nearby circuit (BBC). Energy and power coupling is a virtual handshake between the sending and receiving units. There does not have to physical contact to deliver the power and this is where the science gets even more interesting.
Resonance is a delivery method that isn’t new to us because we have been using it for centuries. It is a naturally occurring frequency that occurs when the system of kinetic energy interacts with potential energy (Witricity, NA). Resonant magnetic coupling can be considered the magic behind wireless electrical transfer. The transmitter – this is the component that sends a frequency which is tuned to its receiver on the device that needs power. The transmitter and the receiver will have oscillating magnetic fields that are tuned to the same frequency; it is here that the power transfer is accomplished.

* Wireless Electricity


While it may seem that wireless energy transfer is something out of a futuristic movie, in actuality it is something that we have been using for some time now. Some electrical toothbrushes have a charging base where there is no metal on metal contact. There are charging pads for mobile devices, eliminating the need for cords for each device. This however is still the infancy in the life of electrical power. We have a long way to go to see the impact that this technology can have on our lives, nation and world.
“The transmission of power without wires will very soon create an industrial revolution and such as the world has never seen before,” Nikola Tesla (IEEE, 2010) .Tesla wrote this to George Westinghouse in 1906. Over one hundred years later we are now seeing his vision come to fruition albeit at a snail’s pace. Tesla envisioned that a global undertaking of wireless electricity would impact every facet of our lives; everything from cars, airplanes, industrial complexes and residential homes could be powered wirelessly and safely (Vujovic, 1998).
The past century has seen some small hops to large leaps forward in the race to make wireless electricity a household name. In late 1800’s there were demonstrations of wireless power transfer as far as thirty miles. The early 1900’s saw a pause in the research of the technology and this may be due to the ignorance of the US government as to what the power could do. 1961 was the start of the new renaissance in wireless energy transfer and from then there have been numerous breakthroughs that have contributed greatly to the cause.


* BBC. (n.d.). Michael Faraday. Retrieved April 12, 2014, from BBC:
IEEE. (2010, April 30). A Critical Look at Wireless Power. Retrieved April 11, 2014, from Spectrum.IEEE.Org:
Vujovic, D. L. (1998, July 10). Tesla Biography. Retrieved April 8, 2014, from Tesla Society:
Witricity. (NA). Witricity Technology: The Basics. Retrieved April 12, 2014, from



1890 - 1900

1893 – Nicola Tesla demos wireless illumination of phosphorescent lamps in Chicago

1894 – Tesla wirelessly lights single-terminal incandescent lamps in NYC by ”electrodynamic induction”

1896 – Tesla transmits signals over 48 km/30 mi

1897 – Guglielmo Marconi uses an ultra-low frequency radio transmitter to send Morse code over 6 km/4 mi

1898 – Heinrich Rudolf Herz confirms the existence of electromagnetic radiation

1900 - 1968

1901 – Marconi transmits signals across the Atlantic Ocean using Tesla’s apparatus

1961 – William C. Brown publishes an article that explores the possibilities of microwave power transmission

1967 – Brown demonstrates on CBS News with Walter Cronkite a microwave-powered model helicopter that received all the power needed for flight from a microwave beam

1968 – Peter Glaser proposes wirelessly transferring solar energy captured in space using
”power beaming” technology 1969 - 1995

1973 – Prof. Don Otto develops a small trolley powered by induction at the University of Auckland, New Zealand

1973 – The world’s first passive RFID system demonstrated at Los Alamos National Lab

1975 – Goldstone Deep Space Communications Complex performs experiments in the tends of kilowatts

1988 – Under Prof. John Boys the University of Auckland creates Auckland UniServices Company, and conclude that inductive power transmission should be achievable

1988 – Auckland UniServices develops a prototype for a contact- less power supply, and patents the technology

1996 - 2007

1996 – Auckland UniServices develops an electric bus power system using inductive power transfer (IPT) to charge 30-
60 kW. First commercial
IPT bus is commissioned.

1998 – Alticor first demonstrates wireless power technology to power the ultraviolet lamp in its eSpring water purification system

2001 – Splashpower forms in the UK and uses resonant coils in a flat pad to transfer tens of Watts

2002 – US Patent Office grants first wireless power patent to Alticor

2006 – Alticor establishes
Fulton Innovation LLC

2007 – Fulton launches eCoupled

2007 – Prof Marin Soljacic and team at MIT confirms Prof. Boys’ work by wirelessly powering a 60W light

2008 - 2010

2008 – Fulton Innovation acquires Splashpower

2008 – Intel reproduces Tesla’s 1894 implementation and Prof. Boys’ experiments by wirelessly powering a light

2008 – Formation of the Wireless Power Consortium (WPC)

2008 – Wildcharge introduces a charging pad

2008 – Palm introduces PalmPre with Touchstone wireless charging kit

2009 – Powermat launches wireless mat products

2009 – eCoupled integrated into Dell’s Latitude Z laptop

2010 – WPC approves world’s first wireless power standard (Qi) for low-powered devices

2011 – WPC reaches 100 company members…...

Similar Documents

Premium Essay


...Nowadays, the electricity exerts a significant influence on individual's life, not only because the high demand of production in each country, also the diversity of peoples' lives. Therefore, the raw materials, such as oil, coal and gas, are highly demanded in the world. Known to all, however, these materials which are mentioned above are non-renewable resources, and their reserves will certainly, continuously and greatly decrease, so, exactly it is vital to reverse the irrational use of non-renewable resources. In recent years, in virtue of the greatly decreasing of non-renewable resources, scientists and researchers are accelerating the development of the Green Energy, such as wind, wave and solar energy, strenuously making the new green energy more acceptable and popular among individuals, countries and the world. "For example, Renewable energy is seen by the UK government as one vital component of a climate change strategy, for which it has set a notional target of 10% of electricity production (Department of Trade and Industry, 1999)."( Citizen versus consumer: challenges in the UK green power market S.L. Batley, D. Colbourne, P.D. Fleming, P. Urwin). But, there are some critical problems which people cannot ignore, such as the green energies' exploration, technology, exploitation and prices. Consequently, how to explore and use the green energy, instead of the non-renewable energy, to the most degree and enable the green energy to be affordable to the public have become...

Words: 1230 - Pages: 5

Free Essay


...TERM PAPER Wireless LAN Security Enabling and Protecting the Enterprise INSIDE INSIDE ∆ Wireless LAN Technology ∆ ∆ ∆ Benefits of Wireless LANs Security Risks and Technical Challenges Recommendations WIRELESS LAN SECURITY Contents Executive Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Wireless LAN Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Benefits of Wireless LANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Simplified Implementation and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Extended Reach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Increased Worker Mobility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Reduced Total Cost of Ownership and Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Security Risks and Technical Challenges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 “Leaky” Buildings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Unapproved Deployments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Exposure of Wireless Devices . . . . . . . . . . . . . . . ....

Words: 2559 - Pages: 11

Premium Essay


...hierarchical view of energy accounting, Network assets of power distribution utilities, intelligent analysis tools for plugging loop holes and identifying revenue leakage, adding into perform network planning and management activities, calculate / identify technical and commercial losses at any point in the network. GIS based customer indexing & Asset mapping Objective The GIS system to enable users to map the assets of the whole Discom with all the attributes with child parent relationship. It also provides various activities like access interactive maps, perform network analysis, various Electric Utility analysis etc. The aim of the system is to automate the existing processes of DISCOMs which will help in better management of the electricity distribution in their respective areas. The improvement in distribution system will further lead to customer satisfaction and financial benefits. Expected benefits - Online availability of whole network and assets (graphical view) of DISCOM - Unique no. Allocation to each asset - Various details of network and connected consumers can be accessed instantly - Help in identifying location of the consumer from unique pole id - Network Management - Online Creation of new network, opening of exiting network, Merging of two networks, delete network - Online tracking of different changes in network GIS implementation The various states of implementation of GIS A. Procurement of the images from ESRI B. Capturing the part of the......

Words: 4575 - Pages: 19

Premium Essay

Wireless Electricity

...Wireless Electricity Devry University Tech, Society, and Culture Professor February 24, 2013 Table of Contents I. Wireless Electricity: Explanation and History 3 II. Political and Legal Influences 10 III. Economic Questions and Considerations 16 IV. Wireless Technology with Today’s Culture 20 V. Ethical Implications of Wireless Power 26 VI. Environmental Impact 30 VII. Bibliography 33 ABSTRACT: Wireless electricity is not a new idea, but it has recently become revitalized. This paper looks at the different facets of this invigorated technology. First, it talks about what wireless electricity is and the different approaches of producing it. The paper also talks about the history of wireless electricity and what social factors have motivated it to become invigorated. Next, the government involvement and political issues are talked about. Wireless electricity will also affect the economy so its economic impact is also a topic that is discussed. The psychological and sociological effects of wireless electricity will also be well-thought-out in the next section. The cultural background of this technology is studied and highlighted in American culture. Every technology needs to be examined in detail for its effect on the environment and wireless electricity is no different. The last section of this paper talks about the moral and......

Words: 14468 - Pages: 58

Free Essay


...DANGERS OF ELECTRICITY DANGERS OF ELECTRICITY What are the dangers of electricity? According to: Acceleratedstudynotes. (2012, 03 10). Danger of electricity. Retrieved from Dangers of Electricity contain a range of risks, which are Electric Shock, Psychological Damage, Physical Burns, Neurological Damage and Ventricular fibrillation resulting in death. If not properly controlled or harnessed, can result in serious danger to those who use it. The risks with electric power can be divided into two categories: direct and indirect. The direct danger is the damage that the power itself can do to the human body, such as enabling someone to breathe or regular heartbeats, or burns. The indirect dangers of electricity include the damages that can result to the human body like something caused by electric shock, an explosion, or a fire. Electricity at any voltage can be dangerous and should always be handled with caution. An electric shock can occur upon contact of a human or animal body with any source of voltage high enough to cause enough current flow through the muscles or nerves. Dangers of an over heating cable: Sometimes another danger can begin if an extreme current flows in the wires. They will heat up and the insulation can melt which will cause it to produce poisonous fumes or even catch fire. Therefore it is advice to avoid using appliances that draw......

Words: 612 - Pages: 3

Premium Essay


...PENYERAHAN DAN PENILAIAN TUGASAN ASSIGNMENT SUBMISSION AND ASSESSMENT KOD KURSUS /COURSE CODE : CBWT3103 TAJUK KURSUS /COURSE TITLE : INTRODUCTION TO WIRELESS TECHNOLOGY SEMESTER /SEMESTER : JANUARI/JANUARY 2011 _________________________________________________________________________ ARAHAN KEPADA PELAJAR / INSTRUCTIONS TO STUDENTS 1. Tugasan ini mengandungi SATU (1) soalan sahaja yang disediakan dalam bahasa modul bercetak kursus ini. / This assignment contains only ONE (1) question that is set in the language of the printed module for the course. 2. Jawab dalam Bahasa Melayu atau Bahasa Inggeris. / Answer in Malay or English. 3. Muatturunkan templet tugasan versi bahasa yang berkenaan daripada MyVLE untuk penyediaan dan penyerahan tugasan anda. / Download the language version of the assignment template concerned from the MyVLE for preparation and submission of your assignment. 4. (i) Bagi soalan Tugasan yang berasaskan esei / For essay based assignment: Tugasan anda hendaklah antara 2500 hingga 3000 patah perkataan tidak termasuk rujukan. Bilangan perkataan hendaklah ditunjukkan di hujung tugasan anda. Jumlah perkataan hendaklah ditunjukkan di penghujung Tugasan. Tugasan anda hendaklah ditaip dengan menggunakan saiz fon 12 Times New Roman dan langkau baris 1.5. Jangan menyalin soalan dan arahan tugasan dalam jawapan anda. / Your assignment should be between 2500 to 3000 words excluding references. The number of words should be shown at the end of your assignment. Your......

Words: 2663 - Pages: 11

Free Essay


...Electricity is important to life. A vast number of machines which are invented nowadays cannot be operated without it. As a matter of fact, electricity is used mostly in four main areas: industry, public health, media and transportation. First of all, electricity plays an integral part in industry. Thanks to the invention of electricity, a lot of equipment has been invented including computers, subways, bulbs,etc .... .Electricity is the crucial factor in operating most devices. As a matter of fact, we now lighten our lives with electricity, which is unexpensive and friendly-environment. Moreover, electricity has given birth to assembly line, which means everything is produced by machines precisely and constantly, saving us a great amount of time and money. Apparently, electricity is used by all walks of life everyday in all aspects. For example, in summer, air conditions are used to provide us with cool air and we turn on the heating system to keep the room warm in winter. In the second place, electricity is essential in daily transportation. Only with the advent of electricity can people create the traffic light. This is a great contribution to the safety of people on the street. Additionally, because steam engines are now replaced with electric engines, global warming and greenhouse effect are reduced considerably. Obviously, not only the speed is increased but the journey is smoke free, so less pollution are added into the atmostphere, helping to protect the......

Words: 551 - Pages: 3

Premium Essay

Types of Electricity

...people, etc., etc. Whenever there is a change in any of -the-variables stated above, it brings about a change in the quantity of the commodity purchased over a specified period of time. The elasticity of demand measures the responsiveness of quantity demanded to a change in any one of the above factors by keeping other factors constant. When the relative responsiveness or sensitiveness of the quantity demanded is measured to changes in its price, the elasticity is said be price elasticity of demand. When the change in demand is the result of the given change in income, it is named income elasticity of demand. Sometimes, a change in the price of one good causes a change in the demand for the other. The elasticity here is called cross electricity of demand. The three Main types of elasticity are now discussed in brief. (1) Price elasticity of demand The concept of price elasticity of demand is commonly used in economic literature. Price elasticity of demand is the degree of responsiveness of quantity demanded of a good to a change in its price. Precisely, it is defined as the ratio of proportionate change in the quantity demanded of a good caused by a given proportionate change in price. The formula for measuring price elasticity of demand is: Percentage change in quantity demand Price Elasticity - Percentage change in Price If can be described in symbolic terms. Aq x 100 q AP — - AP x 100 – q P E= x 12- (For......

Words: 1260 - Pages: 6

Premium Essay


...------------------------------------------------- Electricity Lightning is one of the most dramatic effects of electricity. Electricity is a general term encompassing a variety of phenomena resulting from the presence and flow of electric charge. These include many easily recognizable phenomena, such as lightning, static electricity, and the flow of electrical current in an electrical wire. In addition, electricity encompasses less familiar concepts such as the electromagnetic field and electromagnetic induction. The word is from the New Latin ēlectricus, "amber-like"coined in the year 1600 from the Greek ήλεκτρον (electron) meaning amber(hardened plant resin), because static electricity effects were produced classically by rubbing amber. Usage In general usage, the word "electricity" adequately refers to a number of physical effects. In scientific usage, however, the term is vague, and these related, but distinct, concepts are better identified by more precise terms: * Electric charge: a property of some subatomic particles, which determines their electromagnetic interactions. Electrically charged matter is influenced by, and produces, electromagnetic fields. * Electric current: a movement or flow of electrically charged particles, typically measured in amperes. * Electric field: an influence produced by an electric charge on other charges in its vicinity. * Electric potential: the capacity of an electric field to do work on an electric charge,......

Words: 6146 - Pages: 25

Free Essay


...Electric products and services which satisfy LEED requirements Agenda • Introduction • Impacts of US Buildings on the Environment • Advantages of building green • Review the Mission of the US Green Building Council • Discuss the LEED rating system • Discuss Schneider Electric products and services that satisfy LEED requirements • Introduce Case Studies • Summary Course Content or Material 1) Introduction a) Green Building b) Design of Leadership in Energy and Environmental Design (LEED) c) Who makes up the LEED team d) LEED reach e) Point of the LEED point based system f) Why is there a demand 2) Impacts of US Buildings on the Environment a) Impacts of US buildings on resources b) US Energy Consumption c) US Electricity Consumption 3) Advantages of Building Green a) Demand for Green Building b) Perceived Business Benefits c) Predictions in growth of Green d) Next Generations impact of perceptions of green build 4) Mission of USGBC a) Mission statement for USGBC b) What the USGBC does c) Membership 5) LEED Rating System a) LEED addresses complete lifecycle of buildings b) 4 Levels of LEED c) 6 Credit Categories d) Steps to LEED Certification e) A sample checklist f) Available resources on line 6) Schneider Electric products and services that satisfy LEED requirements a) Maximizing LEED points b) Building Automation and Control c) Critical Power and Cooling d) Engineering Services e) Field Services f) Lighting......

Words: 361 - Pages: 2

Free Essay

Wireless Electricity

...Week 2: Resource Review (90 possible points, individual grade)  Each member of the team will assemble at least 5 scholarly, academic references that will be used to write the paper (refer to Week 1’s tutorial on Scholarly References). Each student will list his/her references using APA format, and provide a brief explanation of each resource indicating how that resource will be used. The focus should be upon the student’s specific research assignment.   An approximate length of this bibliography is between 2 - 3 pages.  An example reference: Brenner, Joel (2011). America the Vulnerable: Inside the New Threat Matrix of Digital Espionage, Crime, and Warfare. New York: The Penguin Press In my section of the report, I will be researching security issues associated with collaborative online tools. Brenner’s book explores the events surrounding the WikiLeaks scandal and the issues associated with security. He also examines the legal challenges that the incident presented. This material could be used by my team in another section of the report. He makes some recommendations that we will consider for our conclusion. General reference works such as encyclopedias, dictionaries, wikipedia, will not be considered as sources meeting this requirement. The list could include books, journal articles, industry reports, authoritative web sites, manufacturers’ sites or sites from research groups. Remember, all quotations, paraphrased material, images, graphics and...

Words: 315 - Pages: 2

Free Essay

Wireless Electricity

...Wireless transmission is ideal in cases where instantaneous or continuous energy transfer is needed, but interconnecting wires are inconvenient, hazardous, or impossible. The tangle of cables and plugs needed to recharge today's electronic gadgets could soon be a thing of the past. The concept exploits century-old physics and could work over distances of many metres. Consumers desire a simple universal solution that frees them from the hassles of plug-in chargers and adaptors."Wireless power technology has the potential to deliver on all of these needs."However, transferring the power is the important part of the solution. With wireless energy transfer, the efficiency is a more critical parameter and this creates important differences from the wireless data transmission technologies. To avoid the conflicts like recharging and carrying its appliances of electrical and electronic devices, wireless power transmission is desirable. Wireless power transmission was originally proposed to avoid long distance electrical distribution based mainly on copper cables. This can be achieved by using microwave beams and the rectifying antenna, which can receive electromagnetic radiation and convert it efficiently to DC electricity. Researchers have developed several techniques for moving electricity over long distances without wires. Some exist only as theories or prototypes, but others are already in use. Magnetic resonance was found a promising means of electricity transfer because......

Words: 735 - Pages: 3

Premium Essay

Electricity in Bangladesh

...Electricity is really just organized lightning but it is most powerful indicator of any country’s economy. The infrastructure for energy in Bangladesh is quite small though it has large natural gas resources and only 62% of the total population has access to the electricity. Summit Power is one of market leader along with Summit Power Ltd, BPL, BANGLA CAT, HOSAF Group. Private companies have limited capital also gas the companies have to import oil and coal from foreign country. Shortage of the raw material is not only threat of this industry, many company use second hand machines for production due to this action OTOBI had to pay the penalty of 84 cores Taka recently. This limited amount gas will run out eventually it is used as fuel for electricity generation and commercial energy of the country. The Government of Bangladesh (GOB) has taken initiative to set up power plants so that the country has sufficient electricity within 2016. A number of fiscal incentives are provided to the private power companies. * release to pay tax for upcoming 15 years * are allowed to import plant and equipment and spare parts up to a maximum of ten percent (10%) of the original value of total plant and equipment within a period of twelve (12) years of commercial operation without payment of customs duties, VAT and any other surcharges * allowed to joint ventures with foreign investors * sector’s equity is repatriate along with the profits are divided as owners will ......

Words: 704 - Pages: 3

Premium Essay


...Wireless Security Technical Point-of-View Wireless Security Technical Point-of-View W ireless network (Wi-Fi) is now widely established and utilized at home, offices and everywhere in public areas such as rail stations, streets, and etc. This newsletter provides the technical knowledge of Wi-Fi technologies, relevant threats and countermeasures for building a secure internal Wi-Fi network. For the end user best practices of using Wi-Fi, please refer to another newsletter entitled “Wireless Network, Best Practices for General User”. Wireless Technologies | Classification of Networks Technological advancement in wireless communications has led to the worldwide proliferation of networks. The various kinds of network technologies developed can be classified into the following categories according to their range of coverage: Wireless Wide Area Network (WWAN) WWAN offers the largest coverage. Voice and data can be transferred between mobile phones via messaging apps, web pages and video conferencing. In order to secure the transfer, encryption and authentication methods are adopted. Examples of WWAN are 4G, 3G and 2G networks. Wireless Metropolitan Area Network (WMAN) MAN (Metropolitan Area Network) covers across the entire city and WMAN provides the Wi-Fi network similar to MAN. WiMAX and Wireless MAN are both examples of this kind. Wireless Local Area Network (WLAN) WLAN is an 802.11i wireless network that facilitates the access of corporate......

Words: 4503 - Pages: 19

Free Essay

Wireless Power

...Over the next decade, the most vibrant Wireless Power Transmission (WPT) markets will involve the contactless charging of portable and mobile equipment, in particular consumer electronics and electric vehicles. Today, development teams worldwide are stretching the boundaries of physics using available components to create systems that are able to compete with the efficiencies of wired solutions while offering the conveniences of wire free connections. In the 1890's famous scientist and engineer Nikola Tesla dreamt of wireless transfer of power. He envisioned a world, in which all electricity is transferred wirelessly, but the idea was more or less abandoned and highly efficient copper cables became the basis for modern electricity infrastructure. Then, a few years ago, Marin Soljačić, an assistant professor of physics at MIT, was dragged out of bed by the insistent beeping of a cell phone. In his exhausted state, he wished the phone would just begin charging itself as soon as it was brought into the house. So, Soljačić started searching for ways to transmit power wirelessly. Soljačić found magnetic resonance a promising means of electricity transfer because magnetic fields travel freely through air yet have little effect on the environment or, at the appropriate frequencies, on living beings. Working with MIT physics professors John Joannopoulos and Peter Fisher and three students, he devised a simple setup that wirelessly powered a 60-watt light bulb. The MIT work has......

Words: 1116 - Pages: 5