Single transducer levitator

Details Single transducer levitator Single transducer levitator

1984-07-03

1986-03-04

Levy, Stewart J.

Measuring and testing

Speed, velocity, or acceleration

Angular rate using gyroscopic or coriolis effect

G10K 1500

Patent

active

045733562

ABSTRACT:
A method is described for using acoustic waves to hold an object in position against wandering in any direction, by the use of a single transducer. Formulas are provided for levitating an object along an axis of a rectangular or cylindrical chamber or the center of a spherical chamber. The formulas take into account the relative volume of the object to the chamber.

REFERENCES:
patent: 3164022 (1965-01-01), Ensley
patent: 3232120 (1966-02-01), Ensley
patent: 3882732 (1975-05-01), Fletcher et al.
patent: 4393708 (1983-07-01), Barmatz et al.
patent: 4475921 (1984-10-01), Barmatz
R. R. Whymark, "Acoustic Field Positioning for Containerless Processing", Ultrasonics, Nov. 1975, pp. 251-261.
Vibration and Sound by P. M. Morse (McGraw Hill, N.Y., 1948) p. 399.

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