Acoustic micropump

Details Acoustic micropump Acoustic micropump

1996-01-16

2000-01-04

Freay, Charles G.

Pumps

Motor driven

Magnetostrictive chamber

417412, 4174131, F04B 3500, F04B 1700

Patent

active

060103167

ABSTRACT:
A micropump in which a fluid is pumped by the interaction of longitudinal acoustic waves and the fluid in the microchannel. The micropump having an acoustical transducer responsive to a high-frequency input and directing a longitudinal acoustic wave into the channel which induces a pressure gradient. The fluid in the channel flowing in the direction of travel of the acoustic wave in the channel.

REFERENCES:
patent: 4171852 (1979-10-01), Haentjens
patent: 4282532 (1981-08-01), Markham
patent: 4296417 (1981-10-01), Markham et al.
patent: 5212988 (1993-05-01), White et al.
patent: 5525041 (1996-06-01), Deak
R.M. Moroney, R.M. White, R.T. Howe,"Ultrasonically induced microtransport with cylindrical geometry" presented at 1991 ASME Winter Annual Meeting, Atlanta GA, Dec. 1-6, 1991.
R.M. Moroney, R.M. White, R.T. Howe,"Microtransport induced by ultrasonic Lamb waves" Appl.Phys.Lett., vol. 59, No. 7, Aug. 12, 1991.
C.E. Bradley, R.M. White, "Acoustically driven flow in flexural plate wave devices: theory and experiment" presented at IEEE Ultransonics Symposium, Nov. 2-4, 1994, Cannes, France.
J.W. Grate, S.J. Martin, R.M. White, "Acoustic TSMSAWFPWAPM Wave Microsensors" Part I, Analytical Chemistry 1993, 65, 940A-948A.
M.E. Motamedi, R.M. White, Semiconductor Sensors, Ch.3, Acoustic Sensors, pp. 97-151. John Wiley & Sons, Inc. 1994.

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