Encoding altimeter

The pressure of the atmosphere is sensed by a pressure transducer which causes a resistance to vary. The variance of this resistor is converted to a variable frequency. The number of cycles of this frequency in a set amount of time is counted by a counter and displayed by a digital display.

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Bibliographic Details
Main Authors WITRIOL; NORMAN M, FREDERICK; CARLTON L
Format Patent
LanguageEnglish
Published 06.09.1977
Subjects
GYROSCOPIC INSTRUMENTS
MEASURING
MEASURING DISTANCES, LEVELS OR BEARINGS
MEASURING ELECTRIC VARIABLES
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE
MEASURING MAGNETIC VARIABLES
NAVIGATION
PHOTOGRAMMETRY OR VIDEOGRAMMETRY
PHYSICS
SURVEYING
TESTING
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Summary:The pressure of the atmosphere is sensed by a pressure transducer which causes a resistance to vary. The variance of this resistor is converted to a variable frequency. The number of cycles of this frequency in a set amount of time is counted by a counter and displayed by a digital display.
Bibliography:Application Number: US19760664592