Which UT data artifact is caused by overload?

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

Which UT data artifact is caused by overload?

Explanation:
Overload happens when the received signal is stronger than the instrument can handle, causing clipping and distortion. The system’s transducer and electronics store energy and then continue to ring as they recover, which shows up as a decaying tail after a strong reflection—the ringdown artifact. This is why ringdown is tied to overload: the exaggerated, lingering tail comes from the system’s response to being driven beyond its normal range. Other artifacts come from beam geometry or multiple reflections (side lobes, ghost echoes) or surface scattering (clutter), not from receiver saturation.

Overload happens when the received signal is stronger than the instrument can handle, causing clipping and distortion. The system’s transducer and electronics store energy and then continue to ring as they recover, which shows up as a decaying tail after a strong reflection—the ringdown artifact. This is why ringdown is tied to overload: the exaggerated, lingering tail comes from the system’s response to being driven beyond its normal range. Other artifacts come from beam geometry or multiple reflections (side lobes, ghost echoes) or surface scattering (clutter), not from receiver saturation.

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