G - Physics – 01 – N
Patent
G - Physics
01
N
349/42
G01N 29/04 (2006.01) G01N 29/07 (2006.01) G01N 29/265 (2006.01) G01N 29/44 (2006.01) G01N 29/48 (2006.01)
Patent
CA 1245337
ENHANCEMENT OF LINEAR SCAN ULTRASONICS ABSTRACT OF THE DISCLOSURE An ultrasonic testing method and apparatus stores the reflected ultrasonic signals from each of a plurality of locations along a scan path over a piece of material to be tested. For each individual location, the reflected signal at that location is added to contributing signals from each other location to produce a composite signal which has a good signal-to-noise ratio. The contributing signals from each other location is formed by multiplying the signal of those other locations by a corrective phase shift factor which is a characteristic of a time delay for a reflected signal from the other locations to the individual location of interest. The contributing signal from each other location thus represents a rotated reflected signal from the other locations. -- 15 --
496807
Flora John H.
Powers Thomas Jr.
Babcock & Wilcox Company The
Ridout & Maybee Llp
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