Agricultural robotics uses grippers to grasp multiple objects with different shapes, fragility, etc. The use of nonlinear stiffness springs can make it possible to grasp the object carefully with high compliance and then hold on to the object firmly by actuating the stiffness.
Next to this, it also allows for a single robot to be able to handle different objects accordingly. In multiple other fields, active compliant joints are also being researched, however, it is not yet possible to create an accurate nonlinear stiffness spring that is small enough for application.
This assignment could contribute to robotics becoming more advanced in terms of smooth movements, more human-like behaviour in robotics and better/faster robotics in agricultural applications.