2. Industrial Electronic Institute in Warsaw Welding Department Warsaw University of Technology Institute of Ecological Electric Thermal Engineering Warsaw Poland in co-operation with: Computer Engineering Department ( Katedra Informatyki Stosowanej ) TECHNICAL UNIVERSITY OF LODZ Al. Politechniki 11, 90-924 Lodz, Poland

3. Computerised System for High Temperature Measurements of Surface Properties Computer Engineering Department ( Katedra Informatyki Stosowanej ) TECHNICAL UNIVERSITY OF LODZ Al. Politechniki 11, 90-924 Lodz, Poland

4. Important surface properties: of liquid and solid in contact are measured by this system. andsurface tensionwetting angle Measuring conditions:  wide range of temperatures: up to  different atmospheres 1800 o C

5. PROCESSING ALGORITHMS IMAGE ADC PHYSICAL PARAMETERS DETERMINATION TEMPERATURE MEASURMENT TEMPERATURE CONTROLLER OPTICAL FILTER CHANGER PC COMPUTER SPECIMEN INFRARED FILTERS SET CCD CAMERA HEATING ELEMENTS FURNACE THERMOCOUPLE Block diagram of the system Vision unit

6. view-finder subsystem for the optical infrared filter changer lens CCD camera subsystem for the precise setting of the CCD camera

7. PROCESSING ALGORITHMS IMAGE ADC PHYSICAL PARAMETERS DETERMINATION TEMPERATURE MEASURMENT TEMPERATURE CONTROLLER OPTICAL FILTER CHANGER PC COMPUTER SPECIMEN INFRARED FILTERS SET CCD CAMERA HEATING ELEMENTS FURNACE THERMOCOUPLE Block diagram of the system Vision unit

8. PROCESSING ALGORITHMS IMAGE ADC PHYSICAL PARAMETERS DETERMINATION OPTICAL FILTER CHANGER PC COMPUTER SPECIMEN INFRARED FILTERS SET CCD CAMERA HEATING ELEMENTS FURNACE THERMOCOUPLE CONTROLLER TEMPERATURE MEASURMENT Specimen feeding device Block diagram of the system

9. PROCESSING ALGORITHMS IMAGE ADC PHYSICAL PARAMETERS DETERMINATION TEMPERATURE MEASURMENT TEMPERATURE CONTROLLER OPTICAL FILTER CHANGER PC COMPUTER SPECIMEN INFRARED FILTERS SET CCD CAMERA HEATING ELEMENTS FURNACE THERMOCOUPLE Melting process of palladium at a temperature of 1550 0 C Block diagram of the system

10. OPTICAL FILTER CHANGER PROCESSING ALGORITHMS IMAGE ADC PHYSICAL PARAMETERS DETERMINATION TEMPERATURE MEASURMENT TEMPERATURE CONTROLLER PC COMPUTER SPECIMEN INFRARED FILTERS SET CCD CAMERA HEATING ELEMENTS FURNACE THERMOCOUPLE Block diagram of the system Original image Histogram Thresholding Filtration Segmentation Specimen localisation Measurement of geometrical properties Original image

11. OPTICAL FILTER CHANGER ADC PHYSICAL PARAMETERS DETERMINATION TEMPERATURE MEASURMENT TEMPERATURE CONTROLLER PC COMPUTER SPECIMEN INFRARED FILTERS SET CCD CAMERA HEATING ELEMENTS FURNACE THERMOCOUPLE Block diagram of the system PROCESSING ALGORITHMS IMAGE Original image Histogram Thresholding Filtration Segmentation Specimen localisation Measurement of geometrical properties Histogram

12. ADC PHYSICAL PARAMETERS DETERMINATION TEMPERATURE MEASURMENT TEMPERATURE CONTROLLER OPTICAL FILTER CHANGER PC COMPUTER SPECIMEN INFRARED FILTERS SET CCD CAMERA HEATING ELEMENTS FURNACE THERMOCOUPLE Original image Histogram Thresholding Filtration Segmentation Specimen localisation Measurement of geometrical properties Thresholding Block diagram of the system PROCESSING ALGORITHMS IMAGE

13. ADC PHYSICAL PARAMETERS DETERMINATION TEMPERATURE MEASURMENT TEMPERATURE CONTROLLER OPTICAL FILTER CHANGER PC COMPUTER SPECIMEN INFRARED FILTERS SET CCD CAMERA HEATING ELEMENTS FURNACE THERMOCOUPLE Original image Histogram Thresholding Filtration Segmentation Specimen localisation Measurement of geometrical properties Filtration Block diagram of the system PROCESSING ALGORITHMS IMAGE

14. ADC PHYSICAL PARAMETERS DETERMINATION TEMPERATURE MEASURMENT TEMPERATURE CONTROLLER OPTICAL FILTER CHANGER PC COMPUTER SPECIMEN INFRARED FILTERS SET CCD CAMERA HEATING ELEMENTS FURNACE THERMOCOUPLE Original image Histogram Thresholding Filtration Segmentation Specimen localisation Measurement of geometrical properties Segmentation Block diagram of the system PROCESSING ALGORITHMS IMAGE

15. ADC PHYSICAL PARAMETERS DETERMINATION TEMPERATURE MEASURMENT TEMPERATURE CONTROLLER OPTICAL FILTER CHANGER PC COMPUTER SPECIMEN INFRARED FILTERS SET CCD CAMERA HEATING ELEMENTS FURNACE THERMOCOUPLE Original image Histogram Thresholding Filtration Segmentation Specimen localisation Measurement of geometrical properties Specimen localisation Block diagram of the system PROCESSING ALGORITHMS IMAGE

16. ADC PHYSICAL PARAMETERS DETERMINATION TEMPERATURE MEASURMENT TEMPERATURE CONTROLLER OPTICAL FILTER CHANGER PC COMPUTER SPECIMEN INFRARED FILTERS SET CCD CAMERA HEATING ELEMENTS FURNACE THERMOCOUPLE Original image Histogram Thresholding Filtration Segmentation Specimen localisation Measurement of geometrical properties Measurement of geometrical Block diagram of the system PROCESSING ALGORITHMS IMAGE

17. PROCESSING ALGORITHMS IMAGE ADC PHYSICAL PARAMETERS DETERMINATION TEMPERATURE MEASURMENT TEMPERATURE CONTROLLER OPTICAL FILTER CHANGER PC COMPUTER SPECIMEN INFRARED FILTERS SET CCD CAMERA HEATING ELEMENTS FURNACE THERMOCOUPLE Block diagram of the system Geometrical parameters of the specimen Surface tension calculation on the basis of Dorsey’s and Porter’s equations Wetting angle calculation

18. PROCESSING ALGORITHMS IMAGE ADC PHYSICAL PARAMETERS DETERMINATION TEMPERATURE MEASURMENT TEMPERATURE CONTROLLER OPTICAL FILTER CHANGER PC COMPUTER SPECIMEN INFRARED FILTERS SET CCD CAMERA HEATING ELEMENTS FURNACE Block diagram of the system Geometrical parameters of the specimen Surface tension calculation on the basis of Dorsey’s and Porter’s equations Wetting angle calculation

19. PROCESSING ALGORITHMS IMAGE ADC PHYSICAL PARAMETERS DETERMINATION TEMPERATURE MEASURMENT TEMPERATURE CONTROLLER OPTICAL FILTER CHANGER PC COMPUTER SPECIMEN INFRARED FILTERS SET CCD CAMERA HEATING ELEMENTS FURNACE THERMOCOUPLE Block diagram of the system Geometrical parameters of the specimen Surface tension calculation on the basis of Dorsey’s and Porter’s equations Wetting angle calculation

20. INDUSTRIAL APPLICATIONS:  metallurgy  foundry  surface engineering  welding  glass-making industry  manufacturing of composite materials  production of tiles, varnishes and high-temperature paints, glasses and glazes

21. The results obtained are far more accurate than those obtained by means of the currently applied, extremely time consuming non-automatic methods and the operator’s subjective evaluation. The essential characteristic of the results obtained on the system is their repeatability.