Huygen’s principle is used to describe
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Which letter corresponds to the casing of the transducer in…
Which letter corresponds to the casing of the transducer in the following image?
The type of transducer that combines the technology of linea…
The type of transducer that combines the technology of linear sequence and phased array to produce a trapezoidal shaped image is called
An increase in reflection amplitude from reflectors that lie…
An increase in reflection amplitude from reflectors that lie behind a weakly attenuating structure is called
The piezoelectric effect is the
The piezoelectric effect is the
The type of reverberation echo that usually results from a s…
The type of reverberation echo that usually results from a small gas bubble and appears as a high-amplitude echo occurring at regular intervals is called a
Rayleigh scattering occurs if the particle dimensions are
Rayleigh scattering occurs if the particle dimensions are
The resistance to flow offered by a fluid in motion is calle…
The resistance to flow offered by a fluid in motion is called
Increasing the frequency of an ultrasonic longitudinal wave…
Increasing the frequency of an ultrasonic longitudinal wave will result in which of the following changes in the velocity of the wave?
To proceed from a measurement of Doppler shift frequency to…
To proceed from a measurement of Doppler shift frequency to a calculation of flow speed, _______________ must be known or assumed.