【摘要】 圆形换能器是A超上最常用的换能器,俗称探头。从数学推导入手,对其远场特性进行分析,并且和光的圆孔衍射相比较。再通过水中超声场区的探测,得出相一致的结论。更多还原

【Abstract】 The circular transducer(generally known as probe)is a most popular one in A ultrasound medical instrument.From the mathematics point of view the characteristics of remote area are analyzed and compared with the circular diffraction of light.The consistent conclusion is also drawn by the detection of the area of ultrasound in the water.更多还原