Patent ID: 6662652
Filing Date: 2003-12-16
Classification: G01L

Abstract:
An altitude measuring device, comprising:an altimeter of the aneroid type, having a housing, a pressure sensitive mechanical movement disposed within said housing, and a barometric pressure correction control disposed outside said housing; a digitizer disposed within said housing, said digitizer generating an aircraft altitude output value based upon sensed air pressure; means for modifying said aircraft altitude output value of said digitizer including an input device connected to said barometric pressure correction control and said digitizer, so that when said barometric pressure correction control is changed, said input device generates a barometric pressure correction signal which is routed to said digitizer; said barometric pressure correction signal modifying said aircraft altitude output value of said digitizer to result in a corrected aircraft altitude output value; and, means for routing said corrected aircraft altitude output value from said digitizer to an external navigation system.