VARIABLE ARRAY ACOUSTIC TRACING DEVICE BASED ON OPTO-ACOUSTIC CONVERSION

摘要

According to an embodiment of the present invention, there is provided an acoustic detection device mounted on a surface vessel to detect an underwater target, comprising: a signal generator configured to generate a pulse signal having an arbitrary width and period; A modulator for modulating the signal so that the generated signal has a frequency of a preset band; A light source unit generating light corresponding to the modulated frequency of the signal; A light transmitting part that forms an outer wall of the watercraft and transmits the light; It includes a light steering unit for aiming the light so that the generated light is directed to a preset position on the light transmitting unit, and the light is converted into a sound wave form underwater and radiated after passing through the light transmitting unit at the position. It is characterized.