density correction

density correction

[′den·səd·ē kə′rek·shən]

(aerospace engineering)

A correction made necessary because the airspeed indicator is calibrated only for standard air pressure; it is applied to equivalent airspeed to obtain true airspeed, or to calibrated airspeed to obtain density airspeed.

(engineering)

The part of the temperature correction of a mercury barometer which is necessitated by the variation of the density of mercury with temperature.

The correction, applied to the indications of a pressure-tube anemometer or pressure-plate anemometer, which is necessitated by the variation of air density with temperature.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.