Altimeter having temperature correction
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United States of America Patent
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-
Apr 1, 2008
Grant Date -
May 18, 2006
app pub date -
Jan 27, 2004
filing date -
Feb 6, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
According to the invention, a climate-related, or to be precise, a temperature-related correction of the altitude reading is carried out on an altimeter. In doing this, the measurement of altitude is based on an average reference temperature value at sea level and on an average air pressure reference value at sea level according to the U.S. Standard Atmosphere 1976. The correction ensues by altering the reference temperature at sea level. A correction is then carried out when the temperature prevailing at a certain altitude above sea level differs from the temperature reference value for this altitude. This temperature reference value results at sea level based on the average temperature reference value.
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