Method and apparatus for ultrasonic sensing
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United States of America Patent
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Mar 22, 2011
Grant Date -
Oct 23, 2008
app pub date -
Feb 5, 2008
filing date -
Apr 20, 2007
priority date (Note) -
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Abstract
A distance and temperature sensing unit is used on paving vehicles. The unit has a first set of range sensors of a first diameter and a second set of range sensors of a second diameter. The unit calculates a weighted average distance to a road surface based on ranges measured by the multiple sensors. The unit also has a temperature sensor on a temperature bar. The bar is affixed to the unit by a flexible connection preventing break-off when the bar encounters obstacles, like the road surface, while the paving vehicle is moving.
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