Measurement apparatus and process for determining the position of an object relative to a reference surface
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United States of America Patent
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Oct 26, 2004
Grant Date -
May 1, 2003
app pub date -
Oct 15, 2002
filing date -
Oct 12, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A measurement apparatus for determining the position of an object relative to a reference surface, with a measurement nozzle, a reference nozzle, and a measurement device, the outlet opening of the measurement nozzle being located in the reference surface. A compressed air source provides air having a certain feed pressure so that the measurement device acquires one of three state variables: flow rate, pressure and speed of the air upstream of the measurement nozzle.
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