Linear Variable Differential Transformers (LVDTs)

What is Linear Displacement Measurement?

Linear displacement is movement in one direction along a single axis. A position or linear displacement sensor is a device whose output signal represents the distance an object has traveled from a reference point. A displacement measurement also indicates the direction of motion.  A linear displacement typically has units of millimeters (mm) or inches (in.) and a negative or positive direction associated with it.

New Trends in the Insulation Technology of Rotating High Voltage Machines

INTRODUCTION:
    The driving force of material and process development in the insulation technology of rotating high voltage machines has changed in the last five to ten years. Being mainly technology driven in the past, cost has become more and more the determining factor in the industry. Improvements in products or processing are only accepted if they reduce overall cost. On the other hand, high voltage motors and generators are long-life capital goods and a reduction in reliability cannot be tolerated. Any development of new insulating materials has to reflect these facts to be successful in the market.

THE WIRELESS TRANSMISSION OF ELECTRICAL ENERGY

Introduction:
    It is possible that Nikola Tesla is best known for his remarkable statements regarding the wireless transmission of electrical power. His first efforts towards this end started in 1891 and were intended to simply "disturb the electrical equilibrium in the nearby portions of the earth... to bring into operation in any way some instrument." In other words the object of his experiments was simply to produce effects locally and detect them at a distance. By 1899 the electrical potential of his transmitter had increased to the point that more room was needed for the sake of safety. This and other considerations led him to temporarily shift his wireless experiments to a location just outside of Colorado Springs.

Electrical Engineering- know it all

This is a complete reference of electrical engineering.
It includes basic electrical engineering, analogue & digital electronics, circuit simulations, microprocessors & microcontrollers, power electronics, signals & signal processing, filter design, control & instrumentation system, communication system, electromagnetic & field theory, electrical machines.

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ULTRACONDUCTOR

ULTRACONDUCTOR™ defination: An electrical conductor, similar to present-day superconductors, having zero measurable electrical resistance in one dimension. They consist of organic polymers that exhibit electrical resistance much lower than the best metallic conductors and are considered a novel state of matter.

Ultraconductors™ are patented materials being developed for commercial applications. They are made by the sequential processing of amorphous polar dielectric elastomers. They exhibit a set of anomalous magnetic and electric properties, including: very high electrical conductivity (> 1011 S/cm -1) and current densities (> 5 x 108 A/cm2) over a wide temperature range (1.8 to 700 K). Additional properties established by experimental measurements include: the absence of measurable heat generation under high current; thermal versus electrical conductivity orders of magnitude in violation of the Wiedemann-Franz law; a jump-like transition to a resistive state at a critical current; a nearly zero Seebek coefficient over the temperature range 87 - 233 K; no measurable resistance when Ultraconductor™ films are placed between superconducting tin electrodes at cryogenic temperatures.

    

Dictionary of electrical engineering

Here you can get The Dictionary of Electrical Engineering.
It is very useful for engineering students and professionals.
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