Design your own stack
Noliac Piezo Actuators
Download "Design Your Own Stack" as pdf
Noliac's standard stacks are designed with 1mm thick PZT endplates on top and bottom of the actuator, and n active single actuators.
Height
The total height of a SCMA can be estimated by the following equation:
H SCMA = n x H CMA + 2
Where: n = number of single actuators constituting the stack H CMA = height of the single actuators constituting the stack [mm]
Example:
Height of a a stack made of 14 CMAP7.
H CMAP7 = 2mm
H SCMA = 14 x 2 + 2 = 30mm
Free displacement at maximum operating voltage
The maximal free displacement dL of a SCMA can be estimated by the following equation:
dL SCMA = 0,9 x n x dL CMA
Where:
n = number of CMA's constituting the SCMA
dL CMA = maximal displacement of the CMAs constituting the SCMA [m]
Example:
Displacement at 3KV/mm of a SCMA made of 14 CMAP7.
Displacement dL CMAP7 =3,1µm
Displacement dL =0,9 x 14 x 3,1E-6 = 39E-6m = 39µm
Note that those equations are only given as an indication. Please refer to Noliac for exact specifications.
