REDTACTON:: • Technology is making many things easier. • Nippon Telegraph and Telephone Corporation(NTT‚ headquartered in Chiyoda-ku‚ Tokyo. President and CEO‚ Norio Wada) is pursuing research and development of an innovative Human Area Networking technology called “RedTacton”. • REDTACTON safely turns the surface of the human body into a data transmission path at speeds up to 10 Mbps between any two points on the body. • REDTACTON uses the minute electric field emitted on the surface of
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Linear Variable Displacement Transducer (LVDT): A very basic transducer which is always useful in the field of instrumentation‚ I have studied about this in my college days. Now let me explain about the LVDT with its Principle of Operation and I will explain how it is constructed for its well known operation and you can understand the working of LVDT. Principle of LVDT: LVDT works under the principle of mutual induction‚ and the displacement which is a non-electrical energy is converted into an
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Since early 2003 the Electrical Inspectorate has been working to raise public awareness of Residual Current Devices (RCDs)‚ with the aim of eventually enforcing the use of these devices as recommended by the standard adopted by the St. Lucia Bureau of Standards for wiring of buildings SLNS/BS 7671: 2001- Requirements for Electrical Installations ¡V IEE Wiring Regulations ¡V Sixteenth Edition. These Regulations though only recently adopted by the Bureau of Standards is the Regulations referred to
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ABSTRACT All the user-friendly services require technologies that enable communication between people and objects in close proximity. As electronic devices become smaller‚ lower in power requirements‚ and less expensive‚ we have begun to adorn our bodies with personal information and communication appliances. Such devices include cellular phones‚ personal digital assistants (PDA’s)‚ pagers and many more. This report describes a human area networking technology that enables communication by
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decreases in order of about 0.5 Lambda. The input impedance of folded dipole increases in order of n^2 (impedance of dipole). Balanced feed is given to the antenna. If you use a co-axial then BALUN (balanced to unbalanced transformer is used . Application (a)TV reception in VHF Band (30-300 MHz). (b)It is also used in HF‚ VHF‚ UHF and Microwave Link.
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Eddy Current 1. The principles of eddy current testing depend on the process of electromagnetic induction. 2. This process includes a test coil through which vary or alternating current (AC) is passed. 3. A varying current flowing in a test coil produces a varying electromagnetic field around the coil‚ As shown in this diagram Amperage * # of coils= strength of magnetic field 4. The electromagnetic field produced around the coils is directly proportional
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.INTRODUCTION Magnetic levitation is the latest in transportation technology and has been the interest of many countries around the world. The idea has been around since 1904 when Robert Goddard‚ an American Rocket scientist‚ created a theory that trains could be lifted off the tracks by the use of electromagnetic rails. Many assumptions and ideas were brought about throughout the following years‚ but it was not until the 1970’s that Japan and Germany showed interest in
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Electricity Project Electricity is a form of energy involving the flow of electrons. Now-a-days electricity has become quite-common in the world. Everybody sees the wonderful work of electricity. The lights on the streets are lit by the electric current. Electric fans work in the court‚ high court and office-rooms. Trains and trams are run by the electric power. They even made cars that run off electricity. So‚ electricity is no longer a strange thing. Electricity is a basic
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Induction Current is produced in a conductor when it is moved through a magnetic field because the magnetic lines of force are applying a force on the free electrons in the conductor and causing them to move. This process of generating current in a conductor by placing the conductor in a changing magnetic field is called induction. This is called induction because there is no physical connection between the conductor and the magnet. The current is said to be induced in the conductor by the magnetic
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"Electrical Energy Consumption" Sustainability and electricity Where does electricity come from? Most people use electricity and see it as something that is infinite and probably don’t give a second thought about its source. This is quite understandable‚ considering electricity looks clean; it doesn’t cause any noise pollution or direct air pollution. The fact is that most electricity is produced by burning coal‚ and the use of nuclear power plants. Simply stated‚ the more electricity used‚
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