The technology associated with those components, devices and systems which are designed to interact between the electromagnetic (optical) and the electric (electronic) state. [JP1]
Note 1: The operation of electro-optic devices depends on modification of the refractive index of a material by electric fields.
Note 2: In a Kerr cell, the refractive index change is proportional to the square of… (Read More →)

Acronym for electro-optical intelligence.

Facsimile recording by means of a chemical reaction brought about by the passage of a signal-controlled current through the sensitized portion of the record sheet.

See electrostatic recording.

Nonthermal conversion of electrical energy into light.
Note 1: Electroluminescence is distinguished from incandescence, which is a thermal process.
Note 2: One example of electroluminescence is the photon emission resulting from electron-hole recombination in a pn junction, as in a light-emitting diode (LED).

Electrochemical facsimile recording in which the recorded copy is made by the passage of a signal-controlled current through an electrolyte which causes metallic ions to be deposited, thus forming an image of the object.

1. Electromagnetic compatibility is the condition which prevails when telecommunications equipment is performing its individually designed function in a common electromagnetic environment without causing or suffering unacceptable degradation due to unintentional electromagnetic interference to or from other equipment in the same environment. [NTIA]
2. The ability of systems, equipment, and devices that utilize the electromagnetic spectrum to operate in their… (Read More →)

The control of friendly electromagnetic emissions, such as radio and radar transmissions, for the purpose of preventing or minimizing their use by unintended recipients.

1. For a telecommunications system, the spatial distribution of electromagnetic fields surrounding a given site.
Note: The electromagnetic environment may be expressed in terms of the spatial and temporal distribution of electric field strength (volts/meter), irradiance (watts/meter2), or energy density (joules/meter3).
2. The resulting product of the power and time distribution, in various frequency ranges, of the radiated or conducted… (Read More →)

1. Any electromagnetic disturbance that interrupts, obstructs, or otherwise degrades or limits the effective performance of electronics/electrical equipment. It can be induced intentionally, as in some forms of electronic warfare, or unintentionally, as a result of spurious emissions and responses, intermodulation products, and the like. [JP 1-02]
2. An engineering term used to designate interference in a piece of electronic… (Read More →)