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A - scan mode and its application

A-scan - the information is contained in the way that the acoustic wave is reflected from the specimen. This time of flight information is depending upon the depths of the sample feature. A digital waveform on the user interface screen displays the arriving echoes. This quantitative time distance measurement (echo- time) display is used to set electronic gates to select the depth range of view. If more than one gate is placed multiple images are displayed in the monitor screen.

A-scan signal with a selected gate (red box)