digital-brain/content/zettels/actuators.md

+++ title = "Actuators" author = ["Dehaeze Thomas"] draft = false category = "equipment" +++

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Short Stroke Actuators

For short stroke and very high dynamic applications, mainly two types of actuators can be used:

• [Voice Coil Actuators]({{< relref "voice_coil_actuators.md" >}})
• [Piezoelectric Actuators]({{< relref "piezoelectric_actuators.md" >}})

Long Stroke Actuators

• Linear motors
• Piezoelectric Walking Drive (PI)

Rotational drives can be combined with ball-screw mechanisms for long (infinite) axial motion:

• Brush-less DC Motor. See (Yedamale 2003) and this working principle.
• [Stepper Motor]({{< relref "stepper_motor.md" >}})

How to choose the correct actuator for my application?

For vibration isolation:

• In (Ito and Schitter 2016), the effect of the actuator stiffness on the attainable vibration isolation is studied ([Notes]({{< relref "ito16_compar_class_high_precis_actuat.md" >}}))
• (Murugesan 1981) On overview of electric motors for space applications

Bibliography

Ito, Shingo, and Georg Schitter. 2016. “Comparison and Classification of High-Precision Actuators Based on Stiffness Influencing Vibration Isolation.” Ieee/Asme Transactions on Mechatronics 21 (2): 1169–78. doi:10.1109/tmech.2015.2478658.

Murugesan, S. 1981. “An Overview of Electric Motors for Space Applications.” Ieee Transactions on Industrial Electronics and Control Instrumentation IECI-28 (4): 260–65. doi:10.1109/TIECI.1981.351050.

Yedamale, Padmaraja. 2003. “Brushless Dc (Bldc) Motor Fundamentals.” Microchip Technology Inc 20: 3–15.