This thesis describes the development an easy to use, low cost device which can continuously measure the water transparency throughout different layers in ditches. The development of this device...Show moreThis thesis describes the development an easy to use, low cost device which can continuously measure the water transparency throughout different layers in ditches. The development of this device has started in several forms using several detection methods with LEDs, a laser or a pre-made turbidity sensor. The intended use of the device is in the ditches of the Living Lab in Leiden and might be expanded to ditches across the country. Another part of this thesis describes the development of an automatic air-based monitoring system for the Living Lab using a drone. The first steps towards the automation of this system have been made.Show less
In this project the presence and characteristics of a (lubricating) water layer during ice skating were studied. A water layer of several micrometers in thickness was found, influenced by...Show moreIn this project the presence and characteristics of a (lubricating) water layer during ice skating were studied. A water layer of several micrometers in thickness was found, influenced by parameters such as the normal force on the skate, the speed at which the skate moves and the temperature of the ice and the temperature of the skate. Various improvements to the setup have been implemented and are described in this work. Theoretical models of the problem have been refined and used to allow for more direct measurements of the water layer thickness. Lastly, an outlook is given which provides a future student with a starting point for a new project.Show less
