132
Fig. 2 Drawing of the
hydrophone array probe
used to measure sound
pressure and determine
pressure gradients. The
probe holds eight
hydrophones at separation
distances of 5 cm in the x,
y, and z directions.
Adapted from Zeddies
et al. (2010)
Fig. 3 Sound fields of sound pressure and particle motion produced by a J9 projector. (a) Contour
plot of the peak sound pressure level (SPL dB re 1 μPa) produced by the projector in the center of
the tank. Sound pressure was measured with the hydrophones array probe at 9.5 cm above the tank
bottom. (b) Particle displacement vector fields in the XY plane as measured at 4.5 cm above the
tank floor. Particle displacement vector was also measured at 9.5 cm above tank floor (not shown).
The axes in (a) and (b) are the distance from the center of the tank in cm. “A” and “B” denote the
animal release sites during the playback experiments. Adapted from Zeddies et al. (2010)
J.A. Sisneros and P.H. Rogers
Fig. 2 Drawing of the
hydrophone array probe
used to measure sound
pressure and determine
pressure gradients. The
probe holds eight
hydrophones at separation
distances of 5 cm in the x,
y, and z directions.
Adapted from Zeddies
et al. (2010)
Fig. 3 Sound fields of sound pressure and particle motion produced by a J9 projector. (a) Contour
plot of the peak sound pressure level (SPL dB re 1 μPa) produced by the projector in the center of
the tank. Sound pressure was measured with the hydrophones array probe at 9.5 cm above the tank
bottom. (b) Particle displacement vector fields in the XY plane as measured at 4.5 cm above the
tank floor. Particle displacement vector was also measured at 9.5 cm above tank floor (not shown).
The axes in (a) and (b) are the distance from the center of the tank in cm. “A” and “B” denote the
animal release sites during the playback experiments. Adapted from Zeddies et al. (2010)
J.A. Sisneros and P.H. Rogers