Calibration of Sensors for Measuring Load in Shredding Machines

Research and development of new types of machines, their innovation and improvement is inherently linked to understanding the construction of machine nodes and individuel machine parts. Based on knowledge and experience we can optimize the design of equipment and minimize its power consumption for optimal performance. A specialty of shredding machines is a high diversity in the process of disintegration and processed raw materials. Technology of disintegration is stochastic with respect to the principle of disintegration with regard to the processed type of raw material. Design of new machines is mainly based on gained experiences, which considerably increases the time needed for designing and manufacturing new types of devices. To describe this process, it must be supported by a number of measurements on devices that are suitable for the process. Considering these facts, an experimental measurement stand was designed, to measure the influence of basic parameters affecting the process of disintegration. The stand was designed to allow both direct and indirect measurement of the analyzed variables. It is possible to directly measure the value of disintegration force, on the shredding wedge, required for the disintegration of the material. Before measuring, it is necessary to calibrate the measuring system, in order to obtain relevant values.