CALIBRATION OF ULTRASONIC BEAMS FOR BIO-MEDICAL APPLICATIONS
CALIBRATION OF ULTRASONIC BEAMS FOR BIO-MEDICAL APPLICATIONS
复制标题
DOI：
10.1088/0031-9155/15/2/001
复制
发表时间：
1970-01-01
影响因子：
3.5
通讯作者：
HILL, CR
中科院分区：
文献类型：
--
作者：
HILL, CR
简要介绍了当前医学应用中超声波束的重要参数。介绍了两种分别适用于诊断型和治疗型波束声功率绝对测量的辐射天平设计。两种仪器的灵敏度分别为0.3 mW和0.05w。文中还介绍了一种适用于波束形状和脉冲形状(声能量的时空分布)测量的小型压电式水听器探头的结构和使用。这两种类型的测量提供了互补的信息，人们认为，它们的结合使用为超声波束校准问题提供了一种很好的实用方法。
The important parameters of ultrasonic beams used in current medical applications are briefly surveyed. Two designs of radiation balance are described which are suitable for the absolute measurement of acoustic power in diagnostic and therapeutic type beams respectively. The sensitivities of the two instruments are of the order of 0.3 mW and 0.05 w. A description is also given of the construction and use of a small piezoelectric hydrophone probe which is suitable for measurements of beam shape and pulse shapes (spatial and temporal distribution of acoustic energy). The two types of measurement provide complementary information and it is considered that their use in combination provides a good practical approach to the problem of ultrasonic beam calibration.