| 摘要 |
An abnormality detection apparatus includes a receiver (3; 3A; 3B) for receiving microwaves (2, 8) emitted from objects (1; 1A; 1B; 1C; 1D; 1E; 1F); a detector (4) connected to the receiver (3; 3A; 3B), for converting the microwaves (2, 8) to video signals (2S4; 2S21) and outputting them; and a signal processor (5) for converting the video signals (2S4; 2S21) outputted from the detector (4) to a display signal (2S5), outputting it to an external display device (91; 91A), evaluating the received microwaves (2, 8) for any abnormality on the basis of the duration time of the video signals (2S4; 2S21) and the level of the frequency and/or on the basis of the level of the video signal, and generating an alarm signal (2S6) when the microwaves are judged to be the result of abnormality.
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