Continuous-wave (CW) transducers have higher efficiencies because energy is not lost to damping material.
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Q46: Which of the following is achieved within
Q47: With phasing,the reception beam is _ and
Q48: Which of the following determines the beam
Q49: The impedance of the matching layer is
Q50: The distance from the transducer to the
Q52: Axial resolution is the _.
A) minimum separation
Q53: If the aperture increases,the near-zone length _.
A)
Q54: The operating frequency depends on the element
Q55: Many frequencies are present in short pulses.
Q56: Utilizing multiple focal zones simultaneously increases image
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