Accession Number:

AD1004161

Title:

Radio Frequency Identification (RFID) Based Corrosion Monitoring Sensors. Part 2: Application and Testing of the Coating Materials

Descriptive Note:

Technical Report

Corporate Author:

DRDC Atlantic Research Centre - Dockyard Laboratory Pacific Victoria, BC Canada

Report Date:

2014-12-22

Pagination or Media Count:

17.0

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.

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE