. The design, development, and evaluation of a differential pressure gauge directional wave monitor. Water waves; Pressure transducers. - h - the pressure sensors, as in Figure I~2, one could imagine that one sensor would report the passage of the crest before the other. The difference in pressure over time between the sensors' records can be analyzed by well-known techniques and a first estimate of the wave direction calculated, (Longuet-Higgins,Cartwright,and Smith,1963). There is, of course, a directional ambiguity with only two sensors since a wave approaching as in Figure 1-3 would create
. The design, development, and evaluation of a differential pressure gauge directional wave monitor. Water waves; Pressure transducers. - h - the pressure sensors, as in Figure I~2, one could imagine that one sensor would report the passage of the crest before the other. The difference in pressure over time between the sensors' records can be analyzed by well-known techniques and a first estimate of the wave direction calculated, (Longuet-Higgins,Cartwright,and Smith,1963). There is, of course, a directional ambiguity with only two sensors since a wave approaching as in Figure 1-3 would create the same pressure record over time as in Figure 1-2. Such ambiguities may be resolved by additional sensors. Presently, the analysis of data from bottom-mounted arrays of pressure sensors usually develops pressure differences through the sub- traction of individually meas- ured absolute pressures. However, instantaneous differ- ences in the transducers' records due to wave action are typically very small when compared to the large pressure values that they. FIGURES 1-1,2,3: Approach of a long-crested "wave to two adjacent pressure 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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