Patent ID: 7498577
Filing Date: 2009-03-03
Classification: G01J,G01N

Abstract:
1. A sensing device comprising: a transmission path through which an electromagnetic wave propagates while radiating to the periphery of the transmission path, wherein the transmission path includes a line made of a conductive material and the frequency of the electromagnetic wave is within a range of 30 GHz to 30 THz; an electromagnetic-wave input unit through which the 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 for allowing an interaction to occur between a test subject and the electromagnetic wave in the transmission path, wherein when the test subject is positioned near the bent portion, the electromagnetic-wave detector detects a change in a state of the electromagnetic wave caused by the interaction occurring between the test subject and the electromagnetic wave in the bent portion, the detected change providing a basis for obtaining information on the test subject.