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Balance Pan Damping Using Rings Of Tuned Sloshing Liquids



Edwin R. Williams, Darine El Haddad, V Generalova, Pierre Gournay, C. Hauch, F. Villar, Richard L. Steiner, Ruimin Liu


This paper describes a new method to damp out balance pan oscillations even when the balance is operated in vacuum. The key is to tune the wavelength of the damping liquid, which resides in a sealed container attached above the pan, to the natural frequencies expected in the pan operation. We are investigating the practical application of this damping approach in our respective watt balance experiments. It is shown that rings of tuned liquids work well.
IEEE Transactions on Instrumentation and Measurement


damping control, vacuum control, watt balance, wave damping


Williams, E. , El, D. , Generalova, V. , Gournay, P. , Hauch, C. , Villar, F. , Steiner, R. and Liu, R. (2009), Balance Pan Damping Using Rings Of Tuned Sloshing Liquids, IEEE Transactions on Instrumentation and Measurement, [online], (Accessed May 17, 2024)


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Created April 1, 2009, Updated February 19, 2017