Thursday, March 19, 2009

Letter I

IEEE
An organization open to individual membership that provides a
variety of services for its members, but also develops numerous
standards for technology and practices. The organization is
now officially known as IEEE (pronounced eye-triple-e) and no
longer refers to itself as the Institute of Electrical and Electronic
Engineers.

Impedance


The total opposition to alternating current. Impedance is
the vector sum of resistance and reactance. The symbol for
impedance is “Z.” The unit for impedance is the ohm.


Inductance


The property of an electrical circuit that opposes changes in
current. Inductance is designated by the symbol “L” and is
measured in henries.

Inductive Proximity Switch

A type of sensing switch that uses an electromagnetic coil
to detect the presence of a metal object without coming into
physical contact with it.

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