Device for measuring the stiffness of tension springs.

This paper describes a novel mechatronic device for measuring the stiffness constant of simple steel tension springs. The device can measure the stiffness using two principles: quasi-static and dynamic methods. The device is based on the Arduino Mega platform and has a touch-sensitive display for measurement control and visualization. The operation and measurement accuracy of the designed system on selected steel tension springs is evaluated. [ABSTRACT FROM AUTHOR]