NON-CONTACT RF STRAIN SENSOR

A passive, non-contact radio frequency (RF) strain sensor changes resonant frequency as it is deformed. The sensor's resonant frequency can be determined by monitoring the signals transmitted and/or reflected therefrom upon illumination of the sensor by a known RF signal source. The sensor can...

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Bibliographic Details
Main Authors ZUNINO JAMES L.III, FEDERICI JOHN F, LIM HEE C
Format Patent
LanguageEnglish
Published 16.08.2007
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE
PHYSICS
TESTING
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES
TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
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Summary:A passive, non-contact radio frequency (RF) strain sensor changes resonant frequency as it is deformed. The sensor's resonant frequency can be determined by monitoring the signals transmitted and/or reflected therefrom upon illumination of the sensor by a known RF signal source. The sensor can be implemented using thin film techniques on a flexible thin substrate that can be attached to the surface of a structural member of interest.
Bibliography:Application Number: US20070674835