Force measuring cell with an oscillating string transducer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Dec 11, 2001
Grant Date -
N/A
app pub date -
Sep 20, 2000
filing date -
Oct 30, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The inventive force measuring cell consists of a plate (2) which is provided with a circular hole (2), the axis of which is perpendicular to the surface of said plate (2) and to the direction of the force that is to be measured. Said axis also lies within the neutral surface of the plate (2). The plate (2) can also be the web of a carrier. A measuring transducer (12) is inserted into the hole (3) in order to measure any modification of the size of the diameter of said hole (3) on a plane that is inclined at an angle of 45.degree. counter to the direction of the force (F) to be measured. A lateral force is created in the direction of y in addition to a transverse stress .tau. with a component .tau..sub.xy by applying force in the direction of y when at least one side of the plate (2) is clamped in the base. The originally circular hole (3) is deformed into an ellipse. The measuring transducer (12) consists of a measuring transformer with an oscillating string.
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