Drop Shape Analysis System for Contact Angle Measurement. Allows the determination of dynamic and static contact angle, and surface energy of solids. Windows® software is used to process images acquired by the video camera and digitizing card of the DSA10 system. Images of sessile drops, enclosed bubbles and pendant drops can be fitted to yield surface tension, interfacial tension, and contact angle data. Software uses a special algorithm to define the drop boundary reliably. Four different drop contour fitting routines are available depending on the measurements desired. Measurements of sessile or pendant drops and enclosed bubbles. Four different image fitting options, polynomial, height/width and Laplace. Seven different surface energy calculation equations, acid-base, Fowkes, Owen-Wendt-Rabel-Kaelble, Schultz 1 and 2, Wu and Zisman. Real time display of drop images and data in graphs and tables. Capability to export data and drop images for storage or printing. 120/240V, 50/60 Hz, CE.