Monitoring with high-frequency sound waves (ULTRASONIC INSPECTION) is a method in non-destructive inspection. For workpiece thickness and flaws are contained within the workpiece. By sending sound waves more than 20000 Hz frequency, which humans can hear it (usually the human ear can hear sounds in the frequency range 20-20000 Hz) that this ULTRASONIC sound waves through a solid medium, and of.Failed but will not transmit and reflect back on the air as intermediaries, therefore, rely on such principles be used to check for defects because defects, it will be a space that is. Thus making the sound waves are reflected back to the receiver, and the processing sector comes as data managers to make. With ULTRASONIC waves for detecting the display in this screen will come out in the form of a signal path called A-Scan, which requires the use of an. Expert in the use of tools and the interpretation of signs to distinguish whether or not stain, which is if the check does not have the experience to make a check and then may cause confusion in distinguishing signals. The next generation has changed, the display is changed as a more Visual. By illustrating a picture in picture VIEW our SIDE called B-Scan and the TOP of the VIEW shown in figure, which is popular in the monitor mixed material, called C-Scan, which checks can. However, all three of the display, there are also limitations in terms of the interpretation of the display. That is, the measure could not be made to find the size and location of the flaw. At the same time, there are also limitations in the area of the surface, which make a head check is there "(DEAD ZONE) make the check could not be performed. Surface area and slightly below the surface. This is because the head check is also a single ELEMENT verification header is a single piece, so in short-distance transmission of sound waves, there will be no mutual interference and regulation. So has research and development to reduce such constraints until the monitoring techniques can override such restrictions. This monitoring technique is the use of a PHASED ARRAY techniques.
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