A PVDF micro-force sensor based on inverse-model algorithm and its applications

This paper applies the polymer material PVDF (polyvinylidene fluoride) as the sensing element of a micro-force sensor, designs the inverse model controller of the PVDF physical system, obtains a micro-force sensor with a simple structure, and it works well during the experiment. This paper also sets up a micro-force tracking test, by controlling a XYZ-positioning table to move using VC, LABVIEW programs. During the tracking test, the paper employs the P (proportional) closed-loop control method, and the PD (proportional & differential) control method, then, compares the results of them at last, and also gets good results.