Physics Mid Term

Card Set Information

Author:
monkies
ID:
28402
Filename:
Physics Mid Term
Updated:
2010-07-29 19:58:19
Tags:
mid term review
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Description:
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  1. array transducer
    linear
    active elements are arranged in a straight line
  2. array transducers
    annular
    elements are arranged as circular rings with a common center
  3. array transducers
    convex
    • active elements are arranged in a bowed or arched line
    • the transducer may also be called a curved or curvilinear array
  4. if mechanical transducer malfunction
    loss of entire image
  5. if linear and convex arrays malfunction
    • dropout of image information from the top to the bottom of the image
    • the location of the line corresponds to the broken crystal
  6. if phased arrays malfunctions
    • erratic steering and focusing
    • the extent to which the image is affected is variable
  7. if annular phased arrays malfunctions
    a horizontal or side to side band of dropout at a particular depth
  8. mechanical transducer
    • has sector inage shape
    • mechanical steering technique
    • fixed focusing technique
  9. linear switched transducer
    • rectangular image shape
    • electronic steering techinique
    • electronic focusing technique
  10. phased array transducer
    • sector image shape
    • electronic steering technique
    • electronic focusing technique
  11. annular phased transducer
    • sector image shape
    • mechanical steering technique
    • electronic focusing technique
  12. convex transducer
    • blunted sector image shape
    • electronic steering technique
    • electronic focusing technique
  13. vector transducer
    • trapezoidal image shape
    • electronic steering technique
    • electronic focusing technique

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