| 摘要 |
PROBLEM TO BE SOLVED: To provide a microwave detector capable of identifying a wrong alarm source more surely than a conventional method, and suppressing output of an alarm following normal microwave detection even in front of the wrong alarm source to be passed for the first time.SOLUTION: A microwave detector comprises: microwave detection means (12, 14 and 16) for detecting a prescribed microwave; and multiplied microwave detection means (22, 24 and 26) for detecting a multiplied microwave thereof. When receiving a microwave to be a fundamental wave and a multiplied microwave thereof at the same timing, an analysis determination part 30 determines, on the basis of output from the two detection means, that the microwave detected by the microwave detection means is the microwave from a wrong alarm source, and performs control for suppressing a normal alarm by using an alarm display part 42 and an alarm sound output part 44. |
