Static Force Measurement Using Resonance Effect of Polyvinylidene Fluoride Bimorph
Original Publication Date: 1985-May-01
Included in the Prior Art Database: 2005-Feb-18
Using a polyvinylidene fluoride (PVF2) bimorph to generate vibrations, and using a separate PVF2 sensor to measure the static force, minimizes the need for high stress to generate electric displacement, and minimizes electric loss in a static force sensor. PVF2, although flexible, lightweight, and rugged, is not commonly used in piezoelectric bimorph devices. The resonance frequencies recorded by apparatus of the PVF2 bimorph subjected to various tensions the PVF2 provide high-voltage output (0.5 to 1.0 V) at high frequencies. This type of static force measurement is applicable to robotic assembly of printer components or to the calibration of on-line printer platens, for example.