1A1-A16 Improvement of 6-AXIS Material Tester for Measuring Mechanical Spine Properties

Abstract

We are developing the 6-axis material tester, with a 6-DOF parallel mechanism with hybrid position/force control to evaluate mechanical spine properties. We published the principle of the 6-axis material testing machine before. In this study, we show improvements in testing methods. Especially, we arranged control methods for estimating indices, Neutral Zone and Coupling Motion.