Antifouling Effect on Measurement Target of Track Irregularity by Metamaterial Effect

Abstract

Techniques have been developed for measuring orbital deviation by image measurement. In this method, the trajectory distortion is measured by measuring the coordinates of the center of gravity of the circle with a digital camera. However, due to the repeated train running, the surface of the recursive target for measurement becomes black due to dirt, and the position of the center of gravity of the circle cannot be accurately measured on the image. Dirt due to the deposits is an important issue, and a technique for protecting the surface of the target from dirt is desired. In this study, we develop a target antifouling sheet using a metamaterial technology that imitates a snail shell and has an oil-repellent effect and verifies the effect.