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State space model variables.
| Inputs | Outputs |
|---|---|
| Forces on the TTP on X, Y, and Z axes | Elongation of the piezo actuators (strain measure) |
| Forces acting on the piezo actuators | Distance between moveable module and fixed plate on three points (located on piezo actuators) |
| Forces acting on the kinematic chains X and Y | Accelerations (X, Y, Z axes) measured |
| Displacement of TTP (X, Y, Z axes) elongation of the kinematic chains |
