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10 Cards in this Set

  • Front
  • Back
The piezoelectric effect was discovered by . . .
Pierre and Jacques Curie.
What happens to a transducer if it is heated above the Curie Point?
The material becomes depolarized.
Damping material shortens 2 things.
Spatial pulse length and pulse duration.
In regards to bandwidth. The shorter the pulse the _______the bandwidth.
Wider.
Beam width at any locatation depends on. (3 things)
Frequency, aperture, distance from the transducer.
Axial resolution is determined by what?
Spatial pulse length.
_______pulse lengths give better axial resolution.
Shorter.
Name 2 types of transducer arrays.
Linear, curved, phased, annular.
The shape of the image given by a vector array transducer is . . .
Trapezoidal.
List components of a transducer. (7)
Case, electrical shield, acoustic insulator,PZT/active element, wire, matching layer, backing layer.