Ascending and descending underwater

A project log for OSUG: Open-Source Underwater Glider

A versatile autonomous environmental drone using a buoyancy engine

alexwalexw 09/22/2017 at 21:540 Comments

Just a quick update regarding some testing of the new hardware: I recently had access to a pool and I was able to test the glider's new hardware in deeper water. There is currently no control software onboard, so the glider is dead reckoning using set timer delays (4 seconds down, 4 seconds up). The pitch mass is not varied during the duration of the filming. The angle of attack is currently quite steep, but this will be optimised as a PID algorithm becomes integrated. The tether at the back of the glider is only there for remote programming, which made it quicker to modify timings whilst the glider was in the water; the tether did not need to be attached whilst it was performing this gliding sequence.