Electrical control handle for liftingsystem

Sammanfattning

The purpose of this bachelor’s thesis is to investigate and construct a computerized electric control handle for a lifting system. The goal is to construct a prototype that can enable lifts with a weightless feeling. Initially, a literature study was conducted to investigate different possible solutions. Three different sensors were evaluated in the literature study. A load cell proved to be best suited for this project. Furthermore, a prototype was constructed where a signal from a load cell could regulate the speed and direction of an electric DC motor with a worm gear. After the prototype was constructed, it was assessed by 17 people. Overall, they all agreed that the lifting experience was good or decent. Finally, it was found that it is possible to create an electric lifting system that enables lifting with a feeling of weightlessness with the help of a load cell and an electric DC motor with a worm gear. There are also opportunities for further development such as better regulation with control engineering theories. Since this project had both a strict schedule and a tight budget to relate to, it has been difficult to develop the concept to its full potential.