| 摘要 |
A sensing device includes a transmission path, an electromagnetic-wave input unit through which an electromagnetic wave enters the transmission path, an electromagnetic-wave detector configured to detect the electromagnetic wave propagating through the transmission path, and a bent portion provided in the transmission path. The electromagnetic wave propagates through the transmission path while radiating to the periphery of the transmission path. The bent portion is provided in the transmission path for allowing an interaction to occur between a test subject and the electromagnetic wave in the transmission path. When the test subject is positioned relative to the bent portion, the electromagnetic-wave detector detects a change in the state of the electromagnetic wave caused by the interaction occurring between the test subject and the electromagnetic wave in the bent portion. The detected information provides a basis for obtaining information on the test subject.
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