Our general idea for our first design is to keep it simple. We needed something that was able to tackle our main issue which will be the buoyancy and stability of the whole buoy. On top of that, a large enough component that is able to hold our sensors and devices that we want to be deployed in the tank. While doing so, we needed to keep in mind to keep its footprint compact since we were told that every volume is valuable to industry companies.
We did some sketching and this was what we had came up with. Our very first iteration that is able to tick our checklist. We have designed a case (as seen in the left photo) that is able to house all of our components snuggly, in a space as compact as possibly.
After running the case in a SOLIDWORKS stimulation, we found that it was far from buoyant and decided to add a ring to rectify this.
This resulted in the finalized first design as seen in the pictures on the right.