Ultrasonic transducer array with a reduced number of transducer elements
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United States of America Patent
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Feb 6, 1996
Grant Date -
N/A
app pub date -
Sep 23, 1994
filing date -
Aug 11, 1994
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Abstract
An ultrasonic transducer array in which distances between the array's transducer elements (T.sub.ij) increase in the direction of the rows (x direction) and in the direction of the columns (y direction) from a center of symmetry (S) outward. The integral over a straight-line function f(x) and/or g(y), which steeply decreases on either side of a center of symmetry (S) between the center points (M.sub.ij) of adjacent transducer elements (T.sub.ij), is constant for each row and/or column. Thus, the number of transducer elements (T.sub.ij) is reduced without considerable deterioration of the beam characteristic of the transducer array.
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