- 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 ...
The conversion of alternating current into direct current by means of a rectifier.
Industry:Aviation
The conversion that changes analog information into a digital form. Analog-to-digital conversion is done with an analog-to-digital (A-to-D) converter, which changes the varying values of an analog signal into combinations of conditions that are either on or off. The digital values can be processed in a digital computer.
Industry:Aviation
The core (center portion) of an atom. The nucleus contains one or more protons (positive charges), and all nuclei except that of hydrogen contain one or more neutrons. Neutrons have mass but no electrical charge.
Industry:Aviation
The core of a transformer on which the windings, or coils, are mounted. The core is made of thin sheets (laminations) of soft iron or silicon steel cut in the shape of the letter E. The coils are placed over the legs of the core, and the opening is closed with strips of the same material cut in the shape of the letter I.
Industry:Aviation
The core of an electrical transformer made up of a stack of thin sheets, or laminations, of soft iron or a special highly permeable steel, insulated from each other by an oxide or varnish coating.
Eddy currents are induced into the cores of transformers by alternating current flowing in the windings surrounding them, and these eddy currents produce heat and cause electrical losses. The high resistance of the laminated core opposes the flow of eddy current and minimizes the losses.
Industry:Aviation
The correct term for an electronic component which normally goes by the name of vacuum tube or valve. An electron tube is a form of electron control valve. Electron tubes have a heated cathode that emits electrons and an anode, or plate, connected to a high positive voltage that attracts the electrons.
The flow of electrons between the cathode and the anode is controlled by the voltage on one or one more grids placed between the cathode and anode. The cathode and its heater, the grids, and the anode, are all housed inside a glass or metal envelope from which all the oxygen has been removed. The envelope may be left with a vacuum, or it may be filled with an inert gas.
Industry:Aviation
The coupling between the windings of a transformer that transfers the maximum amount of energy. Critical coupling is also known as optimum coupling.
Industry:Aviation
The course-deviation indicator used with a VOR navigation system.
Industry:Aviation
The cross-sectional shape of an airfoil, viewed as if it were cut through in a fore-and-aft plane.
Industry:Aviation
The cumulative effect that occurs when the output of one series of components serves as the input to the next series.
Industry:Aviation
