INSTRUMENT FOR LIQUID SURFACE TENSION MEASURING BASED ON WITHDRAWAL RING METHOD
Keywords:
surface tension, measuring, method of extension ring.Abstract
Established that the separation from the surface of the ring is broken static equilibrium latter affecting the surface tension of the liquid. Therefore proposed to determine the relationship between the applied force raised by volume liquid ring and raise it to the height of achievement until clear of the ring from the surface. By the nature of relationship between volume and height to determine values of surface tension. Based on the proposed method developed device that generally consists of electromechanical, electrical components and computers. The process of lifting ring is made and controlled automatically by a stepper motor. Value lifting height and volume converted into an electrical signal is processed by a computer program laid, depending on the experimental comparison of the theoretical value to determine surface tension.
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References
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