Concerns over its use include the mass stranding of whales.
A transducer commonly used with this technology consists of stacks of piezoelectric ceramic disks separated by electrodes and sandwiched between a stiff, light head mass and dense, heavy tail mass. That transducer is the tonpilz, so-named for its mushroom-like shape. The multibeam form of this technology produces a "swath" of data that is typically used to produce bathymetric charts while its sidescan form is used in conjunction with a towfish. The passive type of this technology does not have variables such as projector source level and reverberation level, which are instead components of its active type. Concerns over its use include the mass stranding of whales. For 10 points, identify this underwater acoustic technology.
A transducer commonly used with this technology consists of stacks of piezoelectric ceramic disks separated by electrodes and sandwiched between a stiff, light head mass and dense, heavy tail mass.
SONAR [or sound navigation and ranging]