一、引言 超声诊断仪在近十年中以B型为主形成了一种生产专业,对医疗事业作出了重大贡献。　　　　本文将超声成象的研究工作划分为三个阶段,即探索性研究,应用开发研究和生产技术研究。而生产技术的研究对我国特别重要,因为这是当前的薄弱环节并且没有受到足够的重视。下面先 I. INTRODUCTION Ultrasound diagnostic apparatus has formed a kind of production specialty mainly in Type B in the past ten years and has made a significant contribution to medical undertakings. In this paper, the research work of ultrasound imaging is divided into three stages, that is, exploratory research, applied research and development and production technology research. The study of production technology is of particular importance to my country, because it is the current weak link and has not received enough attention. Below first