Radio frequency identification (RFID) based corrosion monitoring sensors – Part II Application and testing of the coating materials

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Authors
  1. He, Y.
  2. McLaughlin, S.
  3. Lo, J.S.H.
  4. Shi, C.
  5. Lenos, J.
  6. Vincelli, A.
Corporate Authors
Defence Research and Development Canada, Atlantic Research Centre, Halifax NS (CAN);Natural Resources Canada, Hamilton ON (CAN);Waterloo Univ, Waterloo ONT (CAN);Imperial Oil, Sarnia Ont (CAN)
Abstract
Cost-effective Radio Frequency Identification (RFID) transponders (tags) were investigated for wireless corrosion monitoring by applying a metal-filled conductive composite coating onto the surface of the plastic tags. The coating acted as an electromagnetic interference (EMI) shield by attenuating or completely blocking the radio-frequency signals transmitted between the transceiver (reader) and the tag. When the coated RFID tag was exposed to a corrosive environment through accelerated corrosion tests or marine atmospheric tests, the degradation of the coating decreased the EMI shielding effectiveness and resulted in a strengthened communication between the reader and the tag. By establishing a correlation between the corrosion rate of the metal object to be monitored and the sensor responding performance, it was possible to monitor cumulative corrosion damage via wireless sensor reading.
Keywords
corrosion monitoring;wireless sensor;RFID;electromagnetic interference;coating
Report Number
DRDC-RDDC-2014-P62 — External Literature
Date of publication
22 Dec 2014
Number of Pages
17
DSTKIM No
CA039733
CANDIS No
800654
Format(s):
Electronic Document(PDF)

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