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Physics ch. 19
Terms in this set (127)
change in frequency is due to the _______.
doppler shift aka doppler frequency
increase in frequency as it _______ us.
decrease in frequency as it moves ______ us.
the frequency only changes when there is a ______ in the source and receiver position.
there is no change when the source and receiver remain _____.
this is the primary physical principle which is used to measure the velocity of blood in the circulation
the doppler shift is a low frequency that "rides" on ____ of the much higher transducer frequency.
transducer frequencies are _______.
transducer frequencies range from _____ MHz to _____ MHz.
doppler shifts are ______.
doppler shift frequencies range from ______ Hz to ______ Hz.
separating transducer & doppler shift frequencies is done in the system and is called _______.
doppler shift (Hz) = ______ frequency - ______ frequency
what is created when transmitted sound waves strike moving RBC's?
what is created when the change (reflected signal) is higher than the original frequency?
Recommended textbook explanations
Introduction to Electrodynamics
David J. Griffiths
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