- 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 cumulonimbus cloud having protuberance-like pouches, or udders, hanging on their underside. Cumulonimbus mamma clouds normally indicate the presence of severe turbulence.
Industry:Aviation
A cupped, spring steel washer used to produce a large amount of compressive force, but with a limited amount of movement.
Industry:Aviation
A cup-type bearing in which a hardened steel pivot rides. Jewel bearings used in many types of indicating instruments are normally made of an extremely hard glass.
Industry:Aviation
A current-measuring analog electrical indicator whose needle deflection is not uniform over its entire scale. The amount of deflection for a given input is increased for certain ranges of indication. Expanded-scale meters are used when small changes in the upper limit of the value being measured are important.
Industry:Aviation
A curve formed by a flexible cable suspended between two points at the same level.
Industry:Aviation
A curve formed by points that are an equal distance from a straight line and from a fixed point.
Industry:Aviation
A curve formed in more than one plane. The surface of a sphere is a compound curve.
Industry:Aviation
A curve plotted to show the instrument errors at different points on the scale. The error at each point is plotted on a graph, and these points are joined by a smooth curve.
By using the calibration curve, it is possible to interpolate the error at points between those which have been plotted.
Industry:Aviation
A curve showing the relationship between the flux density (B) in a piece of magnetized material and the magnetizing force (H) needed to produce the flux density.
Each type of ferromagnetic material, material that contains iron and is magnetizable, has a different B-H curve.
Each B-H curve consists of the virgin magnetization curve, the curve of B and H, when the material is first magnetized, and the closed hysteresis loop that shows the effect of hysteresis, the magnetism that remains in the material.
Industry:Aviation
A curve showing the way flux density in a magnetic material varies with the magnetizing force applied to it. The shape of a hysteresis loop gives an indication of the magnetic characteristics of the material.
Industry:Aviation
