Hertzian pressure Demonstration of the resulting characteristics of the contact area as a function of the contact force Features - demonstration of the contact area under Hertzian pressure - generation of circular or elliptical contact areas - especially clear results due to pairing transparent plastic with silicone rubber Learning objectives/experiments - resulting shape of the contact area under point contact with different radii of curvature - shape of the contact area as a function of the contact force - influence of an additional transverse component of the contact force Specification [1] demonstration of Hertzian pressure [2] silicone rubber pressure pad [3] transparent plastic plate with grid lines makes it easier to measure the contact area [4] spring scale to measure force [5] movable device for the spring balance to generate a continuously adjustable contact force [6] optimum illumination of the contact area by side-mounted halogen lamp Technical data Spring balance - 0...25N - graduation: 0,5N Pressure pad - 60 Shore Halogen lamp - voltage: 12V - power: 20W 230V, 50Hz, 1 phase 230V, 60Hz, 1 phase; 120V, 60Hz, 1 phase UL/CSA optional LxWxH: 400x400x530mm Weight: approx. 16kg