Method and apparatus for measuring force particularly torque
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United States of America Patent
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Feb 15, 2011
Grant Date -
Oct 1, 2009
app pub date -
Mar 12, 2009
filing date -
Dec 30, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method and apparatus for measuring the force applied by a first member coupled to a second member by a connecting body, by: transmitting a cyclically-repeating energy wave through the connecting body from a first location thereon to a second location thereon; measuring the transit time of the cyclically-repeating energy wave from the first location to the second location; and utilizing the measured transit time to produce a measurement of the force. In the preferred described embodiment, the connecting body is a fastening plate which fastens a drive shaft to a driven shaft and measures the torque output of the drive shaft.
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