| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a microwave object detector capable of rapidly and suitably dealing with the alternation of a focal position or distance upon varying of object to be detected or conveying passage. SOLUTION: The microwave object detector comprises microwave generating means 40 for generating microwave oscillated from a microwave oscillator 11 as a transmission wave A, microwave detecting means 50 for capturing the wave A as a reflected wave B by a receiving antenna 24 when the wave A is reflected by an object P to be detected, transmission wave reflecting means 26 for guiding the wave A to the object A between the means 40 and the object P, and reflected wave reflecting means 27 for guiding the wave B to the means 50 between the means 50 and the object P. The waves A, B are altered in the propagating direction by the means 26, 27 to alter the focal distance and position to the object P.</p> |
