Fundamental Study of Coating-type Sensor for Detection of Infrastructure Deterioration

Abstract

This paper presents a coating-type sensor for more efficient remote inspection of infrastructures that are large in scale and have complicated shapes. For crack detection, electromagnetic waves at around 0.2～2.0 GHz penetrated the coating sensor film, and we observed the reflected waves. Measurement and simulation results confirmed that the sensor detects cracks occurring in the coated films with lengths of about 15％ on one side of the sensor.