What information does the z-axis (brightness) on the Doppler spectrum provide?

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 $9.99Unlock 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

What information does the z-axis (brightness) on the Doppler spectrum provide?

Explanation:
On a Doppler spectrum, the horizontal axis represents velocity (the Doppler shift), while the vertical brightness encodes how strong the signal is at each velocity. That brightness is the amplitude (or spectral power) of the Doppler-shifted echoes. So the z-axis tells you how much flow signal exists at that velocity—higher brightness means a larger amplitude at that velocity, not the velocity itself, bandwidth, or a separate frequency shift.

On a Doppler spectrum, the horizontal axis represents velocity (the Doppler shift), while the vertical brightness encodes how strong the signal is at each velocity. That brightness is the amplitude (or spectral power) of the Doppler-shifted echoes. So the z-axis tells you how much flow signal exists at that velocity—higher brightness means a larger amplitude at that velocity, not the velocity itself, bandwidth, or a separate frequency shift.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy