Abstract
In this research, we propose a buoyancy control device utilizing volume change induced by pneumatic actuator for underwater robot survey. This device is developed for two purposes. The first purpose of this device is to suppress wasteful power consumption from underwater robot. The Seconds purpose of this device is to prevent underwater robots from agitating the sand. The buoyancy control device is actuated by balloon, Direct operated solenoid valve and compressed air. We experimented with buoyancy control device. Experiments indicate that proposed device could be used for motive power of underwater robots. But, we found a point for improvement in that. We are going to experiment it after improvement again.
