Decreasing stiffness at the cost of emerging hysteresis

Experimental results show that the guiding stiffness, and with that the associated motor-current-induced dissipation, of a voice-coil-actuated positioning stage can be significantly decreased using a stiffness-compensation mechanism, as demonstrated by JPE in this Mikroniek article. However, as expected, the contribution of hysteresis from the compensation mechanism becomes noticeable in the force-displacement graph. (Image courtesy of JPE).