An aortic artery measuring probe, device and a method of measuring the diameter of the aortic artery are provided. The aortic artery measuring device includes the aortic artery measuring probe and a signal processing module electrically connected to the aortic artery measuring probe. The aortic artery measuring probe includes a flexible substrate and a sensor array disposed thereon, wherein the sensor array includes multiple ultra-wideband sensors arranged with at M row and at N columns. The ultra-wideband sensors contact a subject to be measured so as to make the flexible substrate deform with the profile of the subject. The ultra-wideband sensors transmit a radio wave into the subject and then the radio wave is reflected by a tissue interface of the artery wall of the aortic artery to form a reflected signal. The ultra-wideband sensors receive the reflected signal and the signal processing module analyses the reflected signal to define the diameter of the aortic artery.主動脈血管量測探針、裝置及主動脈管徑的量測方法。主動脈血管量測裝置包括互相電連接的主動脈血管量測探針及訊號處理模組。主動脈血管量測探針包括可撓性基板及設置於其上的偵測器陣列,偵測器陣列包括MXN個超寬頻無線電波偵測器,這些超寬頻無線電波偵測器接觸待測對象以使可撓性基板隨待測對象的輪廓適應變形。超寬頻無線電波偵測器對待測對象發射無線電波,而無線電波射至待測對象的主動脈血管的管壁的組織界面時反射,超寬頻無線電波偵測器接收回波訊號並由訊號處理模組分析,以定義主動脈的管徑。100‧‧‧主動脈血管量測探針110‧‧‧可撓性基板122、124、126‧‧‧無線電波偵測器200‧‧‧待測對象D‧‧‧主動脈的管徑H、W‧‧‧距離C1、C2、C3‧‧‧中線θ‧‧‧夾角U‧‧‧無線電波R‧‧‧回波訊號
