Electronic altimeter

Details Electronic altimeter Electronic altimeter

1990-05-21

1991-03-26

Woodiel, Donald O.

Measuring and testing

Barometer

340977, G01C 2100, G01L 900

Patent

active

050019295

ABSTRACT:
An altimeter instrument is provided with display means which is locked or unlocked as a function of the output of a sensor which indicates whether the instrument or the apparatus whose altitude the instrument is sensing is in motion or about to be placed in motion or is stationary for a more than a predetermined period of time.

REFERENCES:
patent: 3180152 (1965-04-01), Metzger et al.
patent: 3726138 (1973-04-01), Kosakowski et al.
patent: 4355294 (1982-10-01), Ben-David et al.

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