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Wirelessly Interrogated Wear or Temperature SensorsSensors for monitoring surface wear and/or temperature without need for wire connections have been developed. Excitation and interrogation of these sensors are accomplished by means of a magnetic-field-response recorder. In a sensor of the present type as in the previously reported ones, the capacitance and, thus, the resonance frequency, varies as a known function of the quantity of interest that one seeks to determine. Hence, the resonance frequency is measured and used to calculate the quantity of interest.
Document ID
20100024412
Acquisition Source
Langley Research Center
Document Type
Other - NASA Tech Brief
Authors
Woodard, Stanley E.
(NASA Langley Research Center Hampton, VA, United States)
Taylor, Bryant D.
(Swales Aerospace Hampton, VA, United States)
Date Acquired
August 24, 2013
Publication Date
July 1, 2010
Publication Information
Publication: NASA Tech Briefs, July 2010
Subject Category
Instrumentation And Photography
Report/Patent Number
LAR-16591-1
Report Number: LAR-16591-1
Distribution Limits
Public
Copyright
Public Use Permitted.
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