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accelerometer
Definição1
An instrument for measuring acceleration along the normal (vertical), longitudinal, or lateral axis of an aircraft or missile.
Fonte1
KUMAR, Bharat (ed.). An illustrated dictionary of aviation. New York: McGraw-Hill, c2005. 752 p.
Definição2
A part of an inertial navigation system (INS) that accurately measures the force of acceleration in one direction.
Fonte2
FEDERAL AVIATION ADMINISTRATION. Pilot's handbook of aeronautical knowledge. [s.l.], 2008. Disponível em: http://www.faa.gov/regulations_policies/handbooks_manuals/aviation/pilot_handbook/media/PHAK%20-%20Cover-Preface.pdf. Acesso em: 26 jun. 2014.
Fonte3
INTERNATIONAL CIVIL AVIATION ORGANIZATION. Wind shear. Montreal, 1987. (Cir. 186 AN/122).
Nota Adicional1
Accelerometers, which are fitted in aircraft cockpits, are called g meters. Most aircraft accelerometers indicate instantaneous acceleration, as well as the maximum positive and negative g applied since the instrument was last set.
Contexto
One major inertial navigation system manufacturer has developed a modification to the conventional INS which displays wind components throughout the approach and landing phase. The modified system calculates the wind component and, using an accelerometer, also computes vertical sink rate.
Français
accéléromètre
Imagem

 A depiction of an accelerometer designed at Sandia National Laboratories.

A depiction of an accelerometer designed at Sandia National Laboratories.

Fonte: http://en.wikipedia.org/wiki/File:Accelerometer.png