“医用超声源”是依据《计量法》实施强制检定的医疗器械类别之一,同时又是一个迅速发展的领域。经常有读者询问专业方面的问题,希望专家赐教。中国科学院声学所牛凤岐教授是国内医学超声计量和标准化方面的权威,我国医学超声计量与标准化事业的开创者之一,是多项超声(特别是医 “Medical ultrasound source” is one of the categories of medical devices subject to compulsory verification under the Metrology Law, and at the same time it is a rapidly developing field. Often readers ask professional questions, I hope experts enlighten. Niu Fengqi, a professor of acoustics at the Chinese Academy of Sciences, is the authority of the domestic medical ultrasound measurement and standardization. One of the pioneers in the field of medical ultrasonic metrology and standardization in China is a series of ultrasound (especially medical