Development and validation of open source CTD sensorPlej, Tadej (Avtor) Kramberger, Iztok (Mentor) Banović, Luka (Komentor) CTDconductivitytemperaturedepthopen source projectThe CTD sensor captures measurements of conductivity, temperature and depth of the oceans. Scientists lack this data to discover unexplored areas of the oceans, as measuring systems and maintaining them are very expensive. The aim of this master's thesis is to produce a open source CTD sensor that will be cost-effective, accurate enough to make the data credible and attachable to a sea turtle. Through the thesis we learned about the theoretical background of processes in the oceans, reviewed the measurement methods for measuring conductivity, temperature and pressure. We made a circuit for measuring conductivity and measuring electrodes from graphite DC motor brushes. We validated all the sensors and finally assembled them into the first prototype of a CTD sensor.[T. Plej]20222022-06-01 21:29:05Magistrsko delo/naloga81807UDK: 681.586:004.057.8(043.2)COBISS_ID: 113444867sl