electro-, electr-, electri-

A wattmeter which uses two matched electronic voltmeters to give a reading proportional to the product of two voltages, on a scale calibrated to read power values directly.

One voltage is that which appears across the load, and the other is obtained across a resistor in the series with the line.

An apparatus that uses electron devices to generate an electrical signal of a desired waveform.

1. The energy which is necessary to remove an electron with the Fermi energy in a solid to the energy level of an electron at rest in a vacuum outside the solid.
2. The energy required to raise an electron with the Fermi energy (average energy of electrons in a metal) in a solid to the energy level of an inactive electron in a vacuum outside the solid.

The term Fermi energy is named after Enrico Fermi (1901-1954), an Italian nuclear physicist and refers to the level in the distribution of electron energies in a solid at which a quantum state is equally likely to be occupied or empty.

The use of electronic circuits and electron tools to reproduce symbols; such as, an alphabet, in a specified order on an electronic display machine for the purpose of transferring information from a source to a viewer of the display instrument.

By electronic means or in an electronic manner; for example, stored in or controlled by a computer.

1. An airborne radar in which the beam from phased array antennae changes form and direction according to electronic velocities or speeds.
2. An airborne radar that uses a phased-array antenna which changes radar-beam forms and beam positions at electronic speeds.

When combined with digital processing of the radar returns, it can simultaneously provide such functions as beacon-locating, forward-looking mapping, navigation updating, terrain avoidance, and terrain-following in manned strategic bombers and other aircraft.

A field programmable logic device with transistor rather than fuse links for controlling the signal paths in its fixed array of logic blocks and connections.

An oscillator in which the operating frequency is modified by changing an electrode voltage or current.

To install electronic systems.

1. The study and application of the conduction of electric charges in various media, including vacuums, gaseous media, and semiconductors.
2. The science of all systems involving the use of electrical instruments used for communication information processing, and control.
3. That field of science and engineering which deals with electron systems, circuits, and devices that control the flow of electrons.
4.The name given to that branch of electrical engineering that deals with tools the operations of which depend on the movement of electrons in space as opposed to the movement of electrons in liquids or solid conductors; for example, radio tubes, photoelectric cells, etc.

An engineer whose training includes a degree in electronic engineering from an accredited college or university, a degree in electrical engineering with a major in electronics, or comparable knowledge and experience as required for working with electronic circuits and tools.

The industrial organizations engaged in the design, development, manufacture, and the substantial assembly of electronic equipment, systems, assemblies, and components.

A serviceman who is qualified to repair and to maintain electronic equipment.

A pulse generator used to apply voltages to the body for activating muscles, identifying nerves, and for other medical diagnoses for identifying or determining the natures and causes of diseases or injuries.

A technician with both theoretical and practical training in electronics technology who is qualified to work under the direction of an electronics engineer or independently in assembling, testing, and repairing electronic equipment, in factories, laboratories, and in private business.