Guidelines for calculation: Ring

Please note that the below formulae are only strictly correct under certain boundary conditions

Shape   Axes  Polarization Direction  Applied Field/Voltage Output   Mode of Vibration or displacement / Applied Stress Ring         Radial (r)   Thickness (t)

Frequency  Capacitance  (Static) Displacement  (Static) Voltage     N: Nt or N33 depending on thickness (see boundary conditions) Click below for other calculation guidelines Disc Rod Plate Shear Tube Tube Hemisphere Shear Plate

Ferroperm Piezoceramics A/S Hejreskovvej 18A DK-3490 Kvistgård Tel.: +45 49 12 71 00; Fax: +45 49 13 81 88 e-mail: pz@ferroperm-piezo.com