Electrically induced mechanical vibrations of a surface stabilized ferroelectric liquid crystal cell

Electric field induced mechanical vibrations are investigated in an SSFLC cell using a piezoelectric accelerometer. It is shown that vibrations exist both normal and parallel to the confining substrates. Typical waveforms and frequency spectra of the acceleration signal are presented. Dependences of the vibration amplitude on the frequency and amplitude of the applied voltage as well as on the temperature are analysed.