- 行业: 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 ...
A piece of soft iron placed across the air gap in a magnet used in an electrical measuring instrument to vary the amount of magnetic flux across the gap. The permeability of soft iron is much higher than that of air (flux can pass through iron much easier than it can pass through air), and the flux passes through the iron, rather than crossing the air gap. The position of the magnetic shunt is changed to calibrate the instrument.
Industry:Aviation
A piece of soft iron placed across the poles of a horseshoe permanent magnet when the magnet is not in use. The permeability of the soft iron is much greater than that of the air between the poles, and by keeping the flux concentrated, the flux loss is minimized and the magnet is prevented from becoming demagnetized.
Industry:Aviation
A piece of soft iron placed across the poles of a magnet when the magnet is not being used. Magnetic energy is used to force lines of flux through the air between the poles, and the loss of this energy partially demagnetizes the magnet.
The amount of energy used is determined by the reluctance (the opposition to the passage of the lines of flux) of the material between the poles. The soft iron keeper has a very low reluctance compared with air, and when the lines of flux travel through the keeper rather than through the air, less energy is used, and the magnet self-demagnetizes less.
Industry:Aviation
A piece of soft, pliable leather, from the skin of a chamois, a goat-like antelope. Chamois skin is used to filter gasoline. Gasoline will pass through a chamois skin, but water will not. Gasoline that has been filtered through a chamois skin can be considered to be free from water.
Industry:Aviation
A piece of stranded wire or a number of individually insulated wires enclosed in single bundle or group.
Industry:Aviation
A piece of structural material having a cross-sectional shape that resembles the letter “I.” I-beams used in aircraft structure may be extruded or built up from aluminum alloys, or they may be made of wood. Wooden I-beams may be either built up of several pieces of wood or shaped by removing some of the wood from the sides of the beam with a router.
Industry:Aviation
A piece of wire protruding from a component, such as a resistor or a capacitor, that allows the component to be installed in an electrical circuit.
Industry:Aviation
A piezoelectric crystal that converts input energy of one form, such as pressure, into output energy of another, such as an electrical signal.
Industry:Aviation
A pilotless airplane used for target practice or for research in conditions that would be dangerous for a manned aircraft. Drones are remotely controlled by radio from a mother aircraft or from a ground station.
Industry:Aviation
A pin in a control-cable pulley bracket that prevents the cable moving out of the pulley groove when cable tension is loosened.
Industry:Aviation
