Page 19 - HydrophoneHandbook_eReader_Ed2_20151208
P. 19

Choosing a Hydrophone

Generally, more sensitive hydrophones have larger sensing
areas. The trade-off in lower spatial resolution and narrower
acceptance angle (or directivity) should be noted, however.

                             -220      Effect of Sensing Area on Sensitivity
                             -230
Sensitivity [dB] re 1 V/┬ÁPa  -240      HGL-1000
                             -250      HGL-0400
                             -260
                             -270      HGL-0200
                             -280
                             -290      HGL-0085

                                    0  5 10 15 20                             25
                                                Frequency [MHz]

                                                          17

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