The coefficient of restitution is a parameter that describes the loss of kinetic energy during collision. Here, a free-fall setup under vacuum conditions is developed to be able to determine the coefficient of restitution parameter for particles in micrometer range with high impact velocities.
Drücker, S., Krautstrunk, I., Paulick, M., Saleh, K., Morgeneyer, M., Kwade, A. Development of an Experimental Setup for the Measurement of the Coefficient of Restitution under Vacuum Conditions. J. Vis. Exp. (109), e53299, doi:10.3791/53299 (2016).