Wireless power transfer (WPT), also known as WiTricity, allows transmission of energy without wires. There are two main types - near-field techniques which work over short distances using induction or resonance between coils, and far-field techniques using microwaves or lasers over longer distances. Near-field techniques include inductive coupling used in wireless charging pads and resonant inductive coupling which improves efficiency. Far-field techniques transmit power through the air as radio waves or lasers. While promising applications for electric vehicles or powering remote devices, WPT technologies still face challenges in cost, efficiency, and safety over long distances.
Wireless electricity or WiTricity is the transfer of electric energy or power over a distance without the use of wires. In order for the energy to be transferred safely coupled resonators are used. Coupled resonators are two objects of the same resonant frequency that exchange energy efficiently without much leakage. Minimizing energy leakage is very important because the goal is to have as much energy as possible be transferred from one object to another.
Wireless power transmission deepak kumawatdeepak kumawat
final year seminar report on wireless power transmission system. contents including history of wireless power transmission , vision of nicolas tesla , long range transmission , short range transmission , witricity , microwave power transmission, laser power transmission . consisting a new technology working on solar power transmission running process.
What is wireless power transmission(WPT)?
Why is WPT?
History of WPT
Types of WPT
Techniques to transfer energy wirelessly
Advantages and disadvantages
Applications
Conclusion
References
Long conductors of electricity forming part of an electric circuit and electrically connecting said ionized beam to an electric circuit These methods achieve longer ranges, often multiple kilometer ranges, where the distance is much greater than the diameter of the devices to overcome these drawbacks the technology that offers to free applications from power cords and wall warts will confer a definite salable edge on electronic devices. Applications that would benefit from wireless power range from portable consumer electronics, such as cell phones and MP3 players, which could jettison their wall warts and power adapters, to low-power wireless-sensor networks, which could be free of frequent battery replacement, to medical implants in patients who could avoid surgery to replace batteries
Wireless electricity or WiTricity is the transfer of electric energy or power over a distance without the use of wires. In order for the energy to be transferred safely coupled resonators are used. Coupled resonators are two objects of the same resonant frequency that exchange energy efficiently without much leakage. Minimizing energy leakage is very important because the goal is to have as much energy as possible be transferred from one object to another.
Wireless power transmission deepak kumawatdeepak kumawat
final year seminar report on wireless power transmission system. contents including history of wireless power transmission , vision of nicolas tesla , long range transmission , short range transmission , witricity , microwave power transmission, laser power transmission . consisting a new technology working on solar power transmission running process.
What is wireless power transmission(WPT)?
Why is WPT?
History of WPT
Types of WPT
Techniques to transfer energy wirelessly
Advantages and disadvantages
Applications
Conclusion
References
Long conductors of electricity forming part of an electric circuit and electrically connecting said ionized beam to an electric circuit These methods achieve longer ranges, often multiple kilometer ranges, where the distance is much greater than the diameter of the devices to overcome these drawbacks the technology that offers to free applications from power cords and wall warts will confer a definite salable edge on electronic devices. Applications that would benefit from wireless power range from portable consumer electronics, such as cell phones and MP3 players, which could jettison their wall warts and power adapters, to low-power wireless-sensor networks, which could be free of frequent battery replacement, to medical implants in patients who could avoid surgery to replace batteries
Presentation on wireless power transmission:a new science is borne(WPS)Pushpendra Kumar Sharma
This presentation has all necessary information about Wireless Power Transmission (WPS). I hope who ever see this they do not need to find information from other sources about Wireless Power Transmission. THANK YOU.......
The scope of transmission of energy is now possible, all it needs is implementation. There is a lot of power loss due to wired mechanism. This ppt describes many possible solutions.
A lot of power is wasted due to wired mechanism which could be solved by wireless energy transmission throughout the world.
The advantages and some disadvantages are mentioned in the presentation.
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
Contact with Dawood Bhai Just call on +92322-6382012 and we'll help you. We'll solve all your problems within 12 to 24 hours and with 101% guarantee and with astrology systematic. If you want to take any personal or professional advice then also you can call us on +92322-6382012 , ONLINE LOVE PROBLEM & Other all types of Daily Life Problem's.Then CALL or WHATSAPP us on +92322-6382012 and Get all these problems solutions here by Amil Baba DAWOOD BANGALI
#vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore#blackmagicformarriage #aamilbaba #kalajadu #kalailam #taweez #wazifaexpert #jadumantar #vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore #blackmagicforlove #blackmagicformarriage #aamilbaba #kalajadu #kalailam #taweez #wazifaexpert #jadumantar #vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore #Amilbabainuk #amilbabainspain #amilbabaindubai #Amilbabainnorway #amilbabainkrachi #amilbabainlahore #amilbabaingujranwalan #amilbabainislamabad
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
We have compiled the most important slides from each speaker's presentation. This year’s compilation, available for free, captures the key insights and contributions shared during the DfMAy 2024 conference.
CW RADAR, FMCW RADAR, FMCW ALTIMETER, AND THEIR PARAMETERSveerababupersonal22
It consists of cw radar and fmcw radar ,range measurement,if amplifier and fmcw altimeterThe CW radar operates using continuous wave transmission, while the FMCW radar employs frequency-modulated continuous wave technology. Range measurement is a crucial aspect of radar systems, providing information about the distance to a target. The IF amplifier plays a key role in signal processing, amplifying intermediate frequency signals for further analysis. The FMCW altimeter utilizes frequency-modulated continuous wave technology to accurately measure altitude above a reference point.
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
6th International Conference on Machine Learning & Applications (CMLA 2024)ClaraZara1
6th International Conference on Machine Learning & Applications (CMLA 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of on Machine Learning & Applications.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Water billing management system project report.pdfKamal Acharya
Our project entitled “Water Billing Management System” aims is to generate Water bill with all the charges and penalty. Manual system that is employed is extremely laborious and quite inadequate. It only makes the process more difficult and hard.
The aim of our project is to develop a system that is meant to partially computerize the work performed in the Water Board like generating monthly Water bill, record of consuming unit of water, store record of the customer and previous unpaid record.
We used HTML/PHP as front end and MYSQL as back end for developing our project. HTML is primarily a visual design environment. We can create a android application by designing the form and that make up the user interface. Adding android application code to the form and the objects such as buttons and text boxes on them and adding any required support code in additional modular.
MySQL is free open source database that facilitates the effective management of the databases by connecting them to the software. It is a stable ,reliable and the powerful solution with the advanced features and advantages which are as follows: Data Security.MySQL is free open source database that facilitates the effective management of the databases by connecting them to the software.
2. WHAT IS WPT?
• Wireless energy transfer means transmission of energy
from one place to another without using wires
• Also known as “WiTricity”.
• Power source (transmitter) provides power to the devices
whereas capture device (receiver) captures it.
• Wireless transmission is useful in cases where
interconnecting wires are inconvenient, hazardous or
impossible.
3. WHY NOT WIRES ?
• The percentage of loss of power during transmission and
distribution is approximated as 26-40%. In India, it
exceeds 40%
• Eliminates the use of cables for transmission of power.
• More secure, no risk of getting shock.
• Need for battery is eliminated.
• E-waste is eliminated.
• The main reason for power loss during transmission and
distribution is the resistance of wires used in grid.
4. HISTORY
• 1899: Sir NICOLAI TESLA was the first one to propose
and research the idea of wireless transmission. He
managed to light 200 lamps from a distance of 40km.
• 1961: William C. Brown publishes an article exploring
possibilities of microwave power transmission
• 2009: Sony shows a wireless electrodynamics-
induction powered TV set, 60 W over 50 cm
4
5. HOW WIRELESS POWER WORKS
• Magnetic coil is housed in a box
and can be set in wall or ceiling.
• Antenna A is powered by mains
which resonates at a particular
frequency.
• Electromagnetic waves are
transmitted through the air
• Second magnetic coil, antenna B
fitted in laptop or TV resonates
with the same frequency as first
coil and absorbs energy.
• Energy charges the device.
6. TYPES AND TECHNOLOGIES OF WPT
• Near-field techniques
1. Inductive Coupling
2. Resonant Inductive Coupling
3. Air Ionization
• Far-field techniques
4. Microwave Power Transmission (MPT)
5. LASER power transmission
7. 1. INDUCTIVE COUPLING
• Primary and secondary coils are not connected with
wires. Energy transfer is due to Mutual Induction.
8. some examples:
• electric brushes.
• Wireless Charging Pad(WCP).The devices are to be
kept on a WCP or very near to each other and the
battery will be automatically charged. It is preferred
because it is comfortable, uses less wires and is shock
proof.
9. 2. RESONANCE INDUCTIVE
COUPLING(RIC)
• Combination of inductive coupling and resonance.
Resonance makes two objects interact very strongly
and inductance induces current.
10. HOW RESONANCE IN RIC?
• Coil provides the inductance
• Capacitor is connected parallel to the coil
• Energy will be shifting back and forth between
magnetic field surrounding the coil and electric field
around the capacitor
• Radiation loss will be negligible
11. WITRICITY (A GLIMPSE)
At source:
Electricity =>
Magnetic waves
At device:
Magnetic waves =>
Electricity
12. WITRICITY… SOME STATISTICS
• Used frequencies are 1MHz and
10MHz
• At 1Mhz, field strengths were safe
for human
• At 10MHz, Field strengths were
more than ICNIRP standards
12
13. RIC VS. INDUCTIVE COUPLING
• RIC is highly efficient
• RIC has much greater range than inductive coupling
• RIC is directional when compared to inductive
coupling
• RIC can be one-to-many. But usually inductive
coupling is one-to-one
• Devices using RIC technique are highly portable
14. 3. Atmospheric conduction method
In this method a closed circuit is made using transmitter,
ionized path between upper atmosphere and transmitter,
second ionized path connecting receiver. The circuit back to
the transmitter is completed through the earth.
High potential is maintained at transmitter and receiver end.
A high potential transmitter transmits an “electromotive
impulse” through the ionized path to the upper atmosphere
where it ionizes the air, and this air between the transmitter
and receiver would conduct like a neon tube .
15. ADVANTAGES OF NEAR-FIELD
TECHNIQUES
• No wires
• No e-waste
• Need for battery is
eliminated
• Efficient energy transfer
using RIC
• Harmless, if field strengths
under safety levels
• Maintenance cost is less
16. DISADVANTAGES OF NEAR-FIELD
TECHNIQUES
• Distance constraint
• Field strengths have to be under safety levels
• Initial cost is high
• In RIC, tuning is difficult
• High frequency signals must be the supply
• Air ionization technique is not feasible
17. 4. MICROWAVE POWER TRANSFER
(MPT)
Power transmission via radio waves can be made more
directional, allowing longer distance power beaming, with
shorter wavelengths of electromagnetic radiation, typically in
the microwave range.
A rectenna may be used to convert the microwave energy
back into electricity which has an efficiency of 95%.
Transmitted waves are received at rectenna which
rectifies, gives DC as the output. Power beaming using
microwaves has been proposed for the transmission of
energy from orbiting solar power satellites to Earth.
18. 5. LASER TRANSMISSION
• LASER is highly directional, coherent
• Not dispersed for very long but gets attenuated when
it propagates through atmosphere
• Simple receiver
• Photovoltaic cell
• Cost-efficient
19. ADVANTAGES OF FAR-FIELD ENERGY
TRANSFER
• Efficient
• Easy
• Need for grids, substations etc are eliminated
• Low maintenance cost
• More effective when the transmitting and receiving points
are along a line-of-sight
• Can reach the places which are remote
20. DISADVANTAGES OF FAR-FIELD ENERGY
TRANSFER
• Radiative
• Needs line-of-sight
• Initial cost is high
• When LASERs are used,
• conversion is inefficient
• Absorption loss is high
• When microwaves are used,
• interference may arise
21. APPLICATIONS
• Near-field energy transfer
• Electric automobile charging
• Static and moving
• Consumer electronics
• Industrial purposes
• Harsh environment
• Far-field energy transfer
• Solar Power Satellites
• Energy to remote areas
• Can broadcast energy globally (in future)
22. CONCLUSION
• Transmission without wires- a reality
• Efficient
• Low maintenance cost. But, high initial cost
• Better than conventional wired transfer
• Energy crisis can be decreased
• Low loss
• In near future, world will be completely wireless
23. REFERENCES
• André Kurs, Aristeidis Karalis, Robert Moffatt, J. D. Joannopoulos, Peter
Fisher and Marin Soljačić, “Wireless Power Transfer via Strongly Coupled
Magnetic Resonances”, Science, June 2007
• Peter Vaessen,” Wireless Power Transmission”, Leonardo Energy,
September 2009
• C.C. Leung, T.P. Chan, K.C. Lit, K.W. Tam and Lee Yi Chow, “Wireless Power
Transmission and Charging Pad”
• David Schneider, “Electrons unplugged”, IEEE Spectrum, May 2010
• White Paper on Solar Power Satellite (SPS) Systems, URSI, September
2006
• Richard M. Dickinson, and Jerry Grey, “Lasers for Wireless Power
Transmission”