1.前言在第一篇报告中对全息照相的原理,在第二篇报告[2]中对液面法超声波全息照相进行了说明。本文接着对利用脉冲反射的扫描型超声波全息照相进行说明。 1.1 A 扫描利用超声波脉冲反射的A扫描,作为无损检验仪器之一,在广 1. Introduction The principle of holography in the first report is described in the second report, [2], of liquid holographic ultrasonic holography. This article will next describe the use of pulse-echo scanning ultrasound holography. 1.1 A scan using A-scan ultrasound pulse reflection, as one of the non-destructive testing instruments, in the wide