Advances in Ceramics - Electric and Magnetic Ceramics, by Edited by: Assoc. Costas Sikalidis

By Edited by: Assoc. Costas Sikalidis

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Pierre and Jacques Curie discovered the piezoelectric effect in 1880. With this effect a material itself can effect a small displacement by voltage application. Only for resonance applications like speaker the reachable displacement is adequate. For most technical drive systems the reachable displacement of a piezoelectric actuator seems insufficient. This changes with the utilization of displacement amplification systems. A displacement amplification system transforms the high force but small displacement of the piezoactuator to a moderate force with useful displacement.

Link 0 is chosen as immovable one. d) with structured piezoceramics are developed. (Kasper, Al Wahab, et al. 2 Mechatronic handling device with six piezoelectric actuators It is based on the kinematic structures with two links of the basic serial chain n0=2 (structure type A) and three degrees of freedom h=3. The number of the actuators is 3 and therefore bigger than the number of degrees of freedom of the device, as follows: m = h+r =3+3 = 6. According equation (12) and Table 4 (left side) structure 6–6 corresponds to the chosen parameters.

Kasper, Al Wahab, et al. 2 Mechatronic handling device with six piezoelectric actuators It is based on the kinematic structures with two links of the basic serial chain n0=2 (structure type A) and three degrees of freedom h=3. The number of the actuators is 3 and therefore bigger than the number of degrees of freedom of the device, as follows: m = h+r =3+3 = 6. According equation (12) and Table 4 (left side) structure 6–6 corresponds to the chosen parameters. The structure is symmetric and each basic link can be chosen as immovable one as it is shown in Figure 7 a).

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