| Piezo-electric Multicomponent Measuring Force Platform System was made by Institute of Athletics Science DLUT between 1981—1983,awarded with Sports Science Advancing Award of National Sports Committee.It is a multifunctional integrated force measuring equipment,cardinal technical parameters achieved the world level in this field,which is the first Piezo-electric Measuring Force Platform in home.It composes of measuring force platform,charge amplifier,A/D datum collection and analysis software,can collect the force information about human motion in real time.There are the main works about this study:1.YDT-5462 double force platform measuring system was made in this study on the basis of YDT-5461 single force platform measuring system.This system adopts new methods of datum collection,settles the problems of datum lost and collection synchronization;this study solves how to angle warp between double force platform and global coordinates,adjustment of platforms position with software provided by system;thanks to its communication design, this system can have synchronized testing with motion capture,muscle electrics.2.The human motion testing system YDT-5463 have been designed,which is composed of DVMC motion capture apparatus and three dimensional force plate system.This system can use one computer to capture the motion images and force testing in real time and synchronization.With the body segment parameters and body model,the system can calculate the segment position,joint force and joint moment between the joints.Results show: automatic capture function for markers is perfect,synchronization is excellent,have a integrating analysis on human motion and dynamics,calculate the joint force and joint moment of extremity with the help of kinematics and dynamics data,in sports research and other studies provide us new application methods and measures to resolve and appraise human motion,probe into motion theories and rules. |
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