01 Invent Yourself
Take a box (e.g. a matchbox), filled with identical objects (e.g. matches, balls, …). Find a method to determine the number of objects in the box solely by the sound produced while shaking the box. How does the accuracy depend on the properties of the objects, the box, and the packing density?
  •  Wissenschaftliche Artikel
  • Particle size distribution characterization from acoustic emissions

    A detailed study of the acoustic signals emitted by colliding particles has led to increased precision in the determination of average particle size through an acoustic method and the derivation of methods for characterizing the shape and width of the size distributions of beds of particles. [1978]
    See also previous publications by the author.

  • Shaking a Box to Estimate the Property of Content

    [pages 564-576]
    This paper describes an approach for implementing such a device; the development of a haptic device and control system as well as the modeling and simulation of a virtual box and its
    contents are presented in this paper. The prototype system was evaluated, and different model parameters were experimentally tested.