| 摘要 |
<p>An electrical discharge acoustic source 16 comprises a power section 18, a control section 30, a bank of capacitors 24, and a discharge electrode arrangement 28; wherein the bank of capacitors 24 further comprises a switching arrangement 26 by which each capacitor in the bank 24 is independently connectable to an electrode in the discharge electrode arrangement 28 so as to provide a predetermined acoustic signal on operation of the discharge electrode arrangement 28. A method of generating an acoustic signal comprises independently configuring the connection of each electrode in the discharge electrode arrangement 28, and discharging the connected capacitors through the discharge electrode arrangement 28 so as to provide a predetermined acoustic output.</p> |
