Patent ID: 11921055
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 9:
10. A surface change detection body disposed on a surface of an object and configured to detect a change in the surface, the surface change detection body comprising:
a first layer disposed on the surface of the object, the first layer comprising a first sensor unit portion, a first signal propagation portion, and a first incidence and reflection unit portion;
a dielectric film overlayed on top of first sensor unit portion; and
a second layer comprising:
a second sensor unit portion overlayed on top of the dielectric film, wherein the first sensor unit portion, the dielectric film, and the second sensor unit portion combine to form a sensor unit configured to resonate with a high-frequency signal;
a second signal propagation portion, wherein the first signal propagation portion and the second signal propagation portion combine to form a signal propagation unit configured to propagate the high-frequency signal to the sensor unit; and
a second incidence and reflection unit portion, wherein the first incidence and reflection unit portion and the second incidence and reflection unit portion combine to form an incidence and reflection unit configured to receive the high-frequency signal from an outside and output a reflected high-frequency signal reflected from the sensor unit to the outside.