Samenvatting

Out of the urgent need to monitor the status of soil salinization, the Zeeland government and Waterschap Scheldestromen established a salinity monitoring project called salt watcher. This thesis presents a research on the design of an automatic switch system, which is one of the 3 sub-projects of the salt watcher project. The aim of the thesis research is to design an automatic switch system which is capable to make switching between different possible measurement connections. The project is instructed following V-model design method.

The finished design, which is called the ‘bungalow’ switch system, is a switch system with logic control circuit and a flat layer of switches. The prototype built on the ‘bungalow’ design is tested and the results indicates that the designed system meets all the requirements and performed well for salinity measurement at high accuracy and low signal distortion.

Further research is still recommended on components storage lifetime test, decreasing system scale, completing full-scale product test and integration between different projects.