19 



FREQUENCY [rad/sec] 

 3.0 2.5 2.0 1.5 1.0 0.75 



0.5 0.35 



4 5 



PERIOD [sees] 



FIGURE II-6: Differential pressure response with water depth and 

 frequency. Contours are lines of equal dP response normalized by 

 the rated capacity of the instrument, (l.Opsid). (Sensors are 

 3.875 feet from the seafloor; differenial gage length - 4 feet 

 along wave ray; wave height = 5 feet.) 



