Load measuring sensor and method
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United States of America Patent
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Issued Date -
Jan 11, 2007
app pub date -
Jan 31, 2006
filing date -
Jul 6, 2005
priority date (Note) -
Abandoned
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Abstract
Systems and methods for measuring a load in a structural element include placing at least one actuator and sensor on the structural element. The actuator is capable of exciting a wave of a predetermined frequency in the structural element and the sensor is capable of sensing the wave excited in the structural element. A computer control unit is applied to operate the actuator so as to excite a wave in the structural member in at least a first frequency, and to operate the sensor so as to measure at least one of a change in a resonance frequency in the structural element as a result of a change in loading on the structural member and a change in phase angle in the wave sensed by the sensor as a result of a change in loading on the structural member.
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