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This paper describes the reproduction of human mastication movements on a chewing robot of six degrees of freedom. Motion is recorded using an Articulograph AG500 while a subject chews on a controlled food sample. Articulograph accuracy considerations, data filtering, and the establishment of reference frames on the human subject are discussed in detail. A teeth mapping technique using the Articulograph...
This paper presents the analysis, design and manufacture of a Surface Acoustic Wave (SAW) delay line for use as a bond-rupture biosensor. In contrast to commercial devices used in signal processing, the analyte changes the delay path of the developed device coating it in a layer of particles. The energy of the surface acoustic waves then removes the particles. Design constraints arise from both the...
Many computer controlled multi-axis machines operate under 'open loop' control. The exact position in space of the end effector cannot always be sensed directly. The controlling software makes a calculated estimate of where the tool head should be by monitoring sensors on axes that track linear translation and rotations of shafts/gears. For some applications this may be appropriate; however positional...
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