If the transducer diameter increases while keeping frequency constant, what happens to the focal depth?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

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

If the transducer diameter increases while keeping frequency constant, what happens to the focal depth?

Explanation:
Focal depth is set by the aperture size and the wavelength. With a fixed frequency, the wavelength is fixed, so changing the transducer diameter directly shifts where the beam comes to its tightest focus. A larger diameter acts like a bigger focusing element, and the focal length scales roughly with D^2/λ. Since λ is constant, increasing D pushes the focus farther from the transducer, making the focal depth deeper.

Focal depth is set by the aperture size and the wavelength. With a fixed frequency, the wavelength is fixed, so changing the transducer diameter directly shifts where the beam comes to its tightest focus. A larger diameter acts like a bigger focusing element, and the focal length scales roughly with D^2/λ. Since λ is constant, increasing D pushes the focus farther from the transducer, making the focal depth deeper.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy