DETERMINATION OF THE POLARIZATION DISTRIBUTION IN ELECTRON-BEAM-POLEDPVDF USING HEAT-WAVE AND PRESSURE PULSE TECHNIQUES

In the present paper, heat wave (LIMM) and pressure pulse measurements are reported of the polarization and electric field distribution in n onuniformly electron-beam poled PVDF. In order to obtain the spatial d istributions from the LIMM spectra, the regularization technique is ap plied to the deconvolution. In this connection nonlinear grid distribu tions are discussed. The polarization profiles obtained by the two met hods are compared over the whole thickness range, and a satisfactory a greement is found.