In an A-scan display, what does the vertical deflection represent?

Study for the Ultrasonic Testing Level 1 Test. Utilize flashcards and multiple-choice questions, each with hints and explanations. Prepare effectively for your exam!

Multiple Choice

In an A-scan display, what does the vertical deflection represent?

Explanation:
In an A-scan display, the vertical deflection represents the amplitude of the received ultrasonic echo. Each spike shows a reflection from a boundary, and the height of that spike corresponds to how strong that reflection is (the echo’s amplitude). The horizontal axis, not the vertical, is the time after emission, which maps to depth based on the material’s sound speed. Frequency or phase aren’t directly shown on the vertical axis in a standard A-scan.

In an A-scan display, the vertical deflection represents the amplitude of the received ultrasonic echo. Each spike shows a reflection from a boundary, and the height of that spike corresponds to how strong that reflection is (the echo’s amplitude). The horizontal axis, not the vertical, is the time after emission, which maps to depth based on the material’s sound speed. Frequency or phase aren’t directly shown on the vertical axis in a standard A-scan.

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