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+++ title = "Gravity Compensation" author = ["Dehaeze Thomas"] draft = false category = "Control Theory" subcategory = "Vibration Control" +++

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Reviews

https://www.zaber.com/articles/magnetic-counterbalances-for-vertical-applications

Counterweight

(Yoshioka et al. 2017)

Magnetic

Simple Spring

Constant force spring

https://www.inexal.be/fr/ressorts-force-constante https://www.leespring.com/constant-force-springs https://aimcoil.com/constant-force-springs/

Variable Gravity Compensation

As the mass / position of the load may change during operation, a variable gravity compensation mechanism is very useful.

Commercial products

https://linmot.com/blog/floating-weights-with-magspring/

Bibliography

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Hol, S.A.J., E. Lomonova, and A.J.A. Vandenput. 2006. “Design of a Magnetic Gravity Compensation System.” Precision Engineering 30 (3): 265–73. doi:10.1016/j.precisioneng.2005.09.005.
Westhoff, Bela Schulte, and Jürgen Maas. 2024. “Design of an Electromagnetic Linear Drive with Permanent Magnetic Weight Compensation.” Actuators 13 (3): 107. doi:10.3390/act13030107.
Yoshioka, Hayato, Hidenori Shinno, Jiang Zhu, and Manabu Uchiumi. 2017. “A Newly Developed Zero-Gravity Vertical Motion Mechanism for Precision Machining.” CIRP Annals 66 (1): 389–92. doi:10.1016/j.cirp.2017.04.057.