Liquid detection rfid tag arrangement

A liquid and/or moisture detecting RFID tag arrangement (1) comprises a substrate (4, 4'), at least one antenna element (2) arranged on the substrate, and an RFID chip (3) connected to the antenna element(s). At least a part of the substrate forms a water degradable part (4), made of a water de...

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Bibliographic Details
Main Author Huhtasalo, Lauri
Format Patent
LanguageEnglish
Published 03.01.2022
Subjects
BANDAGES, DRESSINGS OR ABSORBENT PADS
DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS
FILTERS IMPLANTABLE INTO BLOOD VESSELS
FIRST-AID KITS
FOMENTATION
HUMAN NECESSITIES
HYGIENE
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
MEDICAL OR VETERINARY SCIENCE
ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES
PHYSICS
PROSTHESES
TESTING
TREATMENT OR PROTECTION OF EYES OR EARS
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Summary:A liquid and/or moisture detecting RFID tag arrangement (1) comprises a substrate (4, 4'), at least one antenna element (2) arranged on the substrate, and an RFID chip (3) connected to the antenna element(s). At least a part of the substrate forms a water degradable part (4), made of a water degradable material, arranged to dissolve or disintegrate when wetted by a liquid. When the water degradable part disintegrates or dissolves, the response signal from the RFID tag arrangement (1) changes, either to cease, or to be of different content or characteristics. The change in response signal can e.g. be accomplished by a main antenna (2) becoming totally or partly inoperative, by a secondary antenna (5) becoming fully or partly inoperative, or by breaking a detection loop (5').
Bibliography:Application Number: SE20200050830