This design adapts the lab turbidity meter to the requirements for being immersed and waterproofed. The instructions and procedure are here. A zip file of the design files is here.
An anemometer is used for measuring wind speed. It is useful for a surface vehicle, but not so much for a submersible. The instructions and procedures are here. A zip file of the design documents is here.
A weather vane is used for indicating wind direction relative to the local coordinates of a surface craft. It is not so useful for a submersible. There are two possible sensors for the weather vane. The first is the MLX90316. The instructions and procedure are here. The second is the ACE128. The instructions and procedures are here. A zip file of the design files for both is here.
The reference design for the velocity sensor was not terribly successful. Perhaps you can learn from other's mistakes. The instructions and procedures, such as they are, are here. A spreadsheet with the design calculations is here. A spreadsheet with the experimental results is here. A zip archive with the design documents is here.
Salinity Sensor
If you had a design that was particularly successful and you would like to share it with future generations of E80 students, let the professors know, and it may show up here.