A linkage chewing machine for food texture analysis Online publication date: Fri, 11-Dec-2009
by Cheng Sun, John Bronlund, W.L. Xu, Loulin Huang, Marco P Morgenstern
International Journal of Intelligent Systems Technologies and Applications (IJISTA), Vol. 8, No. 1/2/3/4, 2010
Abstract: A chewing machine is required to provide objective measurements of food texture. To do this it must closely simulate human chewing behaviour in terms of kinematics and force application to the food. A linkage chewing machine is developed to reproduce human chewing trajectory in 2D space. This research aims at enhancing this chewing machine so it is suitable for food texture analysis. An ATI force sensor is installed to measure 3D force dynamically. A spring-mass system is developed for feed forward force control. A SimMechanics simulation model including linkage mechanism, velocity control system, spring-mass system and food resistance model is created. The model validates the design of spring-mass system, provides the dynamic force profile on teeth and will benefit the design of feedback force control to implement human occlusal force profiles in the chewing machine. The chewing device will be a useful tool to quantify texture in foods.
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