| 摘要 |
PROBLEM TO BE SOLVED: To provide a radio wave sensor device that can simultaneously detect multiple kinds of information in a simple configuration.SOLUTION: A radio wave sensor device 1 outputs first and second transmission signals S1, S2separated by one octave or more and becoming different frequencies f1, f2 to each other from a multiband transmitting antenna 6, and receives the signals by a multiband receiving antenna 7. A receiving circuit 9 performs mixing between a first synchronizing signal S1synchronized with the first transmission signal S1and a first received signal S1, and outputs a first composite signal S1. Also, the receiving circuit 9 performs mixing between a second synchronizing signal S2synchronized with the second transmission signal S2and a second received signal S2, and outputs a second composite signal S2. A detection circuit 12 simultaneously obtains different two pieces of information in an object O to be measured based on the first detection signal and the second detection signal. |
