Passive Wireless Optical Sensor In The Near Field For Atmospheric Corrosion Monitoring

This article focused on the design of a passive, non-contact corrosion sensor based on the variation of radiofrequency (RF) wave propagation. Corrosion and degradation of materials are major problems. In this context, monitoring the degradation of materials is essential. the developed microwave sensor is inspired by RFID technology, Radio Frequency Identification which operate at around 1.3 GHz. Experimental results prove the feasibility of a completely energetically passive RF sensor. The sensor works perfectly over a reading distance of around 10 cm. an improvement of this distance is possible.