Depth of view increases, duty factor does what?

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Sharpen your skills for the Davies Publishing SPI Test with targeted flashcards and multiple-choice questions, complete with hints and clarifications. Prepare thoroughly for success!

Multiple Choice

Depth of view increases, duty factor does what?

Explanation:
Duty factor is the fraction of time the transducer is actively emitting. When you increase depth, you need more time for echoes from deeper structures to return, so the system spaces pulses further apart to avoid range ambiguity. The duration of each emitted pulse stays the same, but the interval between pulses gets longer, so the duty factor decreases. In short, deeper imaging means longer listening time between pulses, which lowers the proportion of time the transducer is "on."

Duty factor is the fraction of time the transducer is actively emitting. When you increase depth, you need more time for echoes from deeper structures to return, so the system spaces pulses further apart to avoid range ambiguity. The duration of each emitted pulse stays the same, but the interval between pulses gets longer, so the duty factor decreases. In short, deeper imaging means longer listening time between pulses, which lowers the proportion of time the transducer is "on."

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