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Noncontact transportation in water using ultrasonic traveling waves
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10.1121/1.2436708
/content/asa/journal/jasa/121/3/10.1121/1.2436708
http://aip.metastore.ingenta.com/content/asa/journal/jasa/121/3/10.1121/1.2436708

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Experimental design. is the water height and is the disc thickness. The transducers were affixed to the vibrating plate by flat head bolts. The receiving transducer is connected to a matching load consisting of a resistor and inductor.

Image of FIG. 2.
FIG. 2.

Measured vibration distribution of traveling wave on the vibrating plate for .

Image of FIG. 3.
FIG. 3.

Particle velocity as a function of water height. The series of open symbols are the measurement of driving point and the series of closed symbols are that of receiving point . The circles are for electrical power; the squares, electrical power.

Image of FIG. 4.
FIG. 4.

(Color online) Phase distribution of traveling waves generated on the vibrating plate. The triangle is the phase in air, and the circle is the phase in water when .

Image of FIG. 5.
FIG. 5.

Measurement of the transport velocity. The center axis of the vibrating plate is divided into segments from and the average velocity of the disc at each of these sections is calculated.

Image of FIG. 6.
FIG. 6.

The results of a transport experiment in water. The series of open symbols are measurements in water when the height of the water is , and the closed symbol is that in air at .

Image of FIG. 7.
FIG. 7.

The relationship between transport velocity and mass per unit area taking into account buoyancy. Open symbols correspond to measurements in water when the water height is , and the series of closed symbols is that in air.

Image of FIG. 8.
FIG. 8.

The effect of water height on transport velocity. Here is the height of the water and is the thickness of the acrylic disc.

Image of FIG. 9.
FIG. 9.

(Color online) Cavitation bubbles created in the gap between the disc and the vibrating plate. There are several gaps, associated with movement of cavitation bubbles. The cavitation bubbles appear to move from the right side (driving side) to the left side (receiving side) of the photograph. The bright light is from the source set for photographing cavitation bubbles.

Image of FIG. 10.
FIG. 10.

Comparison of transport velocity.

Image of FIG. 11.
FIG. 11.

(Color online) The undulating pattern formed by the vibrating plate.

Tables

Generic image for table
TABLE I.

Physical parameters for levitation objects.

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/content/asa/journal/jasa/121/3/10.1121/1.2436708
2007-03-01
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Noncontact transportation in water using ultrasonic traveling waves
http://aip.metastore.ingenta.com/content/asa/journal/jasa/121/3/10.1121/1.2436708
10.1121/1.2436708
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