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Marker exploration device

机译:标记物探索装置

摘要

PROBLEM TO BE SOLVED: To provide a marker surveying device for preventing the occurrence of erroneous detection that a marker being a survey object has been detected even when a marker that is not a survey object exists within a close range.SOLUTION: A marker surveying device 111 includes: an antenna 112 constituted by arranging a coil used in common for transmission and reception inside a disk shape housing; and a device body 113. The device body 113 includes: a transmission circuit 114 for transmitting a transmission signal of a frequency being the same as a resonance frequency of a marker 61, to the antenna 112; a reception circuit 115 for receiving a response signal from the antenna 112, passing the signal through a band-pass filter 122, and extracting a position and depth of the marker 61; and a signal switching circuit 120 for performing switching between the transmission circuit 114 and the reception circuit 115. An amplitude limit circuit 124 is formed inside the band-pass filter 122.
机译:解决的问题:提供一种标记物测量装置,即使在不是近距离物体的标记物存在的情况下,也能够防止误检测出作为被调查物的标记物的发生。 111包括:天线112,其通过在盘形壳体内布置用于发送和接收的共用线圈而构成;装置主体113包括:发送电路114,用于将与标记61的共振频率相同的频率的发送信号发送至天线112;以及装置113。接收电路115,用于从天线112接收响应信号,使该信号通过带通滤波器122,并提取标记61的位置和深度。信号切换电路120和用于在发送电路114和接收电路115之间进行切换的信号切换电路120。在带通滤波器122的内部形成有振幅限制电路124。

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