- 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 ...
An electron tube used as an oscillator or amplifier of micro-wave energy.
Industry:Aviation
An electron tube whose envelope is filled with an inert gas, such as argon. The inert gas prevents the heated elements from oxidizing.
Industry:Aviation
An electron tube with four active electrodes. A tetrode has a cathode, a control grid, a screen grid, and an anode, or plate.
Industry:Aviation
An electron tube with three active electrodes: the cathode, the control grid, and the anode, or plate. Triode electron tubes are used as amplifiers. A small change in voltage between the cathode and the control grid controls a large flow of electrons between the cathode and the anode. Triode electron tubes have, to a large extent, been replaced by the much smaller and more efficient bipolar transistors.
Industry:Aviation
An electron tube, or vacuum tube, that has seven active electrodes. The electrodes in a heptode are the anode, the cathode, the control grid, and four special purpose grids, such as a screen grid, suppressor grid, and beam-forming grids.
Industry:Aviation
An electronic altimeter used to indicate the exact height of an aircraft above the terrain.
Industry:Aviation
An electronic amplifier capable of amplifying alternating current over a wide band of frequencies. Video amplifiers normally amplify AC over a frequency band of from about 15 hertz to five megahertz (5,000,000 hertz).
Industry:Aviation
An electronic amplifier capable of amplifying alternating current whose frequency is in the range that can be heard by the human ear.
Industry:Aviation
An electronic amplifier designed to produce a gain in power (the product of current and voltage), rather than just voltage.
Industry:Aviation
An electronic amplifier in an autopilot system that increases the signal from the autopilot enough that it can operate the servos that move the control surfaces.
Industry:Aviation
