Prototype of underwater acoustic video camera

Authors have developed 3D acoustic video camera which is small and light weight in order to mount on ROV for ocean floor resources exploration and/or underwater construction. The objective of this camera is forward looking, surveying and especially monitoring underwater work. Here, a prototype of the camera was developed in short range and high resolution, because it monitors a robot arm attached to a vehicle for subsea operations. The main specifications of the prototype; sector angle is 40 deg. (V) × 80 deg. (H), beam width is both 0.25 deg. In this case, updated rate of image is ignored because it has not yet been completed (currently assembling). Then authors were conducted a tank experiment, Prototype was successful to acquire a clear picture of a target in a tank.