Physics Mid Term

array transducer
linear

active elements are arranged in a straight line
array transducers
annular

elements are arranged as circular rings with a common center
array transducers
convex
- active elements are arranged in a bowed or arched line
- the transducer may also be called a curved or curvilinear array
if mechanical transducer malfunction

loss of entire image
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
if phased arrays malfunctions
- erratic steering and focusing
- the extent to which the image is affected is variable
if annular phased arrays malfunctions

a horizontal or side to side band of dropout at a particular depth
mechanical transducer
- has sector inage shape
- mechanical steering technique
- fixed focusing technique
linear switched transducer
- rectangular image shape
- electronic steering techinique
- electronic focusing technique
phased array transducer
- sector image shape
- electronic steering technique
- electronic focusing technique
annular phased transducer
- sector image shape
- mechanical steering technique
- electronic focusing technique
convex transducer
- blunted sector image shape
- electronic steering technique
- electronic focusing technique
vector transducer
- trapezoidal image shape
- electronic steering technique
- electronic focusing technique

Author

monkies

28402

Card Set

Physics Mid Term

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Updated

2010-07-29T23:58:19Z

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