electro-, electr-, electri-

(Greek > Latin: electric, electricity; from amber, resembling amber, generated from amber which when rubbed vigorously [as by friction], produced the effect of static electricity)

Electronics in our lives consists of numerous tools

Equipment which we use everyday relies on electronics to function including calculators, car controls, cameras, washing machines, medical scanners, mobile telephones, radar systems, computers; as well as many other applications or devices which are listed in this unit.

A record of the electrical activity of the spinal cord.
A tool for detecting and recording electric signals of the spinal cord.
The process of recording and analyzing the spontaneous electrical activity of the spinal cord.
1. Produced by or a reference to static electricity (electricity produced by friction).
2. Characterized by a stationary electric charge that builds up on an insulated object; such as, a capacitor or a thundercloud.
3. Referring to stationary electric charges, or produced or caused by static charges (electric charges at rest).
4. The effects produced by electrical charges or fields, alone, without interaction with magnetic influence.
electrostatic accelerator, electrostatic generator, static machine
1. An instrument which uses an electrostatic field in a vacuum to greatly increase the velocity of charged particles.
2. An electrical device that uses an electrostatic field to accelerate charged particles to high velocities in a vacuum.
3. Any machine that produces electric charges by friction or, more commonly, electrostatic induction.
4. A high-voltage generator in which electric charges are generated by friction or induction, then transferred mechanically to an insulated electrode to build up a voltage which may be as high as nine mega volts.
5. An apparatus for producing up to several million volts of electrostatic energy by successive accumulation of small static charges on an insulated high-voltage metal collector.
electrostatic actuator
1. An instrument consisting of an auxiliary external electrode that permits known electrostatic forces to be applied to the diaphragm of a microphone for the purpose of obtaining a primary calibration.
2. A mechanism that causes a tool to be turned on or off, or adjusted or moved.

The motor and the mechanism which moves the head assembly on a disk drive or an arm of a robot is called an actuator.

electrostatic air cleaner, electrostatic precipitator, precipitator
An apparatus that removes dust or other finely divided particles from a gas by charging the particles inductively with an electric field, then attracting them to highly charged collector plates.
electrostatic analyzer
1. An instrument used in ion optics which uses an electric field or permits the passage of ions or electrons of a certain energy while focusing them on to a smaller area.
2. A tool that filters an electron beam, permitting only electrons within an extremely narrow velocity range to pass through it.
electrostatic atomization
Atomization (producing fine particles) in which a liquid jet or film is exposed to an electric field and the forces leading to atomization come from either free charges on the surface or from liquid polarization.
electrostatic attraction, coulomb attraction
1. An electrostatic force of attraction applied by one charged particle to an oppositely charged particle.
2. The electrostatic force of attraction exerted by one charged particle onto another charged particle of the opposite sign.
3. The tendency of bodies to draw together when carrying opposite charges of electricity.
electrostatic bond, ionic bond
1. A bond between atoms or groups that carry opposite charges; or, in some cases, partial charges.
2. A chemical bond in which one atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ion,
3. A valence bond in which two atoms are kept together by electrostatic forces caused by transferring one or more electrons from one atom to another atom.

A valence is the combining power of atoms or groups measured by the number of electrons the atom or group will receive, give up, or share in forming a compound.

electrostatic capacitor
Two conducting electrodes separated by an insulating material; such as, air, ceramic, mica, gas, paper, plastic film, or glass all of which are generally high-impedance devices.
electrostatic cathode-ray tube, electrostatic cathode ray tube
A cathode-ray tube in which electrostatic deflection is used on the electron beam.

A cathode-ray tube is a vacuum tube in which a stream of electrons is accelerated and focused in a beam that produces traces of light on a screen at one end of the tube and which is used in television sets, computer monitors, and as an indicator in radar sets, etc.

electrostatic charge
1. An electric charge stored in a capacitor or on the surface of an insulated object.
2. The algebraic sum of all positive and negative electric charges present in a specific volume or surface element.
3. An electric charge which is in a state of equilibrium.
electrostatic charge mobility (s) (noun), electrostatic charge mobilities (pl)
The property of a barrier material that facilitates or impedes the movement of electrostatic charges internally or on the surface.

The references or sources of information for compiling the words and definitions in this unit are listed at this Electronic Bibliography page or specific sources are indicated when they are appropriate.

A cross reference of word units that are related, directly and/or indirectly, with "electricity": galvano-; hodo-; ion-; piezo-; -tron; volt; biomechatronics, info; mechatronics, info.