Jacek Kucharski

Computer-based system for non-contact temperature measurement of high-glittering induction-heated rotating steel cylinder

Induction heated rotating steel cylinders are mainly used in paper-making, textile and chemical industry. Low emissivity and moving surface are the main difficulty of temperature measurement in this kind of devices. In the paper the real-size induction heated rotating steel cylinder has been described. Additionally, it has been used to investigating the possibility of using the infra-red thermocouples to non-contact temperature measurement. The influence of emissivity varying for temperature readings has been described and the methods of reduction disadvantageous phenomenon has been proposed.

Using Infrared Camera for Dynamic Properties Identification of Induction Heated Rotating Steel Cylinder

Abstract Using of precise temperature control method requires knowledge of the dynamic properties of the controlled system. It can be determined by applying infrared camera to the temperature measurement of controlled system. The article presents two models of induction heated rotating steel cylinder and the method of their parameters estimation.

Crisp and Fuzzy Classifiers in the Two-Phase Gas-Liquid Flow Diagnostics

Abstract The following paper presents results of common clustering algorithms use, both crisp and fuzzy, for flow pattern recognition of two-phase gas-liquid flows observed in horizontal pipeline. Obtained results of HCM, FCM, and kNN clustering algorithms were presented in a form of confusion matrix and compared via its prediction performance.

Fuzzy Spatial Relations-Based Markers Location on Images From an Infrared Camera

Abstract The following paper presents a fuzzy assessed spatial relations-based approach to detect a set of visual markers on a rotating steel cylinder previously discussed by the authors. Presented algorithm uses fuzzy inference system based on fuzzy assessed objects’ shape, orientation and mutual relative position in an input image.

Control Algorithms for Inductors Movement in Induction Heated Calenders

Abstract Fixed, placed at regular distances inductors for induction heating of a rotating steel cylinder do not provide sufficiently uniform temperature profile along cylinder axis required by modern technologies,. The article examines the influence of inductors movement along the cylinder axis on the reduction of pick-to- pick temperature amplitude.