servoaltimeter

servoaltimeter

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A type of pneumatic altimeter in which an aneroid mechanism moves an electrical pickup, amplifying the signal to drive a servomotor. The servomotor, in turn, moves the drums and the pointers. This type of altimeter is more accurate than the sensitive altimeter and may be mounted remotely from the sensor.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved