WIRELESS SAW MOISTURE SENSOR

The present disclosure provides methods and systems for wireless moisture sensing. In one illustrative embodiment, a moisture sensor includes a sensor probe and one or more wirelessly-interrogable SAW devices. The sensor probe may have two spaced conductors, with a probe capacitance therebetween. Th...

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Bibliographic Details
Main Authors BOSTAN, Cazimir Gabriel, GEORGESCU, Ion, AVRAMESCU, Viorel
Format Patent
LanguageEnglish
French
German
Published 28.10.2020
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Summary:The present disclosure provides methods and systems for wireless moisture sensing. In one illustrative embodiment, a moisture sensor includes a sensor probe and one or more wirelessly-interrogable SAW devices. The sensor probe may have two spaced conductors, with a probe capacitance therebetween. The probe capacitance may be dependent upon the moisture content proximate the two spaced conductors. A wirelessly-interrogable SAW device of the moisture sensor may have a resonance frequency that is dependent on the probe capacitance of the sensor probe. Temperature correction of the SAW device may be provided. Such a moisture sensor 600 may be made compact, robust, and easily deployable.
Bibliography:Application Number: EP20160173378