- Отрасли: Aviation
- Number of terms: 16387
- Number of blossaries: 0
- Company Profile:
Aviation Supplies & Academics, Inc. (ASA) develops and markets aviation supplies, software, and books for pilots, flight instructors, flight engineers, airline professionals, air traffic controllers, flight attendants, aviation technicians and enthusiasts. Established in 1947, ASA also provides ...
Electronics in which values change in a linear fashion.
Output values vary in direct relationship to changes of input values.
Industry:Aviation
Electrons that are not bound to any particular atom. They are free to move about from one atom to another in a material. A semiconductor material having a large number of free electrons is called an N-type material.
Industry:Aviation
Electrons that circle around the nucleus of an atom in rings, or shells.
Industry:Aviation
Electrons that spin around the nucleus of an atom in its outer shell. It is the number of valence electrons in an atom that determines its chemical and electrical characteristics, and it is these electrons that can be moved from one atom to another to produce electron, or current, flow.
All chemical elements have between one and eight valence electrons. Elements with between one and three valence electrons are good electrical conductors. Elements with five to eight valence electrons are electrical insulators, and elements with four valence electrons are called semiconductors.
Industry:Aviation
Electrostatic charges built up because of friction between different materials.
Industry:Aviation
Emission of electrons in an electron tube from an electrode other than the cathode. Secondary emission takes place when electrons traveling at a high velocity strike the anode (plate) and knock other electrons from it.
When secondary emission is a problem, a suppressor grid is installed near the anode. A negative voltage on the suppressor grid suppresses the secondary emission by forcing the electrons that have been knocked from the anode, back onto it.
Industry:Aviation
Energy brought to bear on an object that causes or tries to cause it to change its direction or speed of motion.
Industry:Aviation
Energy in an object caused by its motion. Kinetic energy is equal to one half the mass of the body times the square of its speed.
EK = (M · V2) / 2
Industry:Aviation
Energy loss caused by heat produced when current flows through the windings of an electric motor.
Industry:Aviation
Energy possessed by a material or device because of an unequal distribution of electrons. Chemical energy, mechanical energy, heat energy, and light energy can all be converted into electrical energy.
Industry:Aviation
