NEWS 23 June 2022

Decreasing stiffness at the cost of emerging hysteresis

Minimising power dissipation is critical for applications in cryogenic environments.


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).


References

CryoEM zero-vibration cold tip

In life-sciences research, cooling biological samples of, for example, proteins, viruses and bacteria to extremely low temperatures facilitates new forms of microscopy.

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Decreasing stiffness at the cost…

Minimising power dissipation is critical for applications in cryogenic environments.

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Dances with foils

In-line interferometry of nanometer-scale profiles in flexible electronics has been developed for application on a moving flexible foil.

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