Equivalent beam angles for several standard transducers
Kenneth G. Foote · NORA - Norwegian Open Research Archives · 1990
Nominal values for the equivalent beam angle are given for several transducers. These are the standard split-beam transducers designed for the SIMRAD EK500 scientific echo sounder, with operating frequencies of 38 and 120 kHz, and the new two-beamwidth SIMRAD ESS transducer, with operating frequency of 38 kHz.