Abstract: Systems and methods are provided for contactless determining feature(s) of a layered coating. Such systems may include determiner unit and measurement unit including coating scanner, vibration explorer and optical arrangement. Coating scanner includes ingress-protected transmitter to emit scanning radiation, and ingress-protected receiver to sense interaction radiation caused by interaction of scanning radiation with coating layer(s). Vibration explorer includes ingress-protected emitter to emit exploration radiation, and ingress-protected sensor to sense reflection radiation caused by reflection of exploration radiation on coating to detect a vibration of the coating depending on the reflection radiation. Optical arrangement guides scanning radiation and/or exploration radiation towards common radiation direction, and guides interaction radiation towards ingress-protected receiver and/or reflection radiation towards ingress-protected sensor.