. The design, development, and evaluation of a differential pressure gauge directional wave monitor. Water waves; Pressure transducers. kl B. Theory of Analysis Selecting the x-y coordinate system in the horizontal with the origin at the instrument's center as in Figure IV-1, the DPG is assumed to faithfully record the water surface displacement ") at the center, the slopes y\^ at A and C and r]y at B and D. The curvatures ri^x ^^'^ ^yv across the center can be arithmetically approximated by (^Ix*^^) ~ 'rix(C))/Ax and (i1y(B) - T\y(D))/Ay respectively. With the present DPG configur
. The design, development, and evaluation of a differential pressure gauge directional wave monitor. Water waves; Pressure transducers. kl B. Theory of Analysis Selecting the x-y coordinate system in the horizontal with the origin at the instrument's center as in Figure IV-1, the DPG is assumed to faithfully record the water surface displacement ") at the center, the slopes y\^ at A and C and r]y at B and D. The curvatures ri^x ^^'^ ^yv across the center can be arithmetically approximated by (^Ix*^^) ~ 'rix(C))/Ax and (i1y(B) - T\y(D))/Ay respectively. With the present DPG configuration, it is not possible to arithmetically create the cross curvature term r^^ . An additional measurement would be necessary to define such a FIGURE IV-1: Coordinate system adopted for DPG Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bodge, Kevin R; Coastal Engineering Research Center (U. S. ). Fort Belvoir, Va. : The Center ; Springfield, Va. : National Technical Information Service, Operations Division [distributor]
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