Results 241 to 250 of about 1,352 (284)

Ultrasonic Atomization of Liquids

The Journal of the Acoustical Society of America, 1963
A theory of ultrasonic atomization of liquid films is presented. It is assumed that exponential growth of surface disturbances ultimately results in the formation of liquid drops, the diameters of which are proportional to the wavelength of the most rapidly growing initial disturbance.
Richard L. Peskin, Roland J. Raco
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A pinhole-plate ultrasonic atomizer

Ultrasonics, 1984
Abstract A new pinhole-plate ultrasonic atomizer has been proposed and developed. A pinhole-plate having one or more pinholes is joined to a cavity filled with liquid and is vibrated by a circular ring piezoelectric element bonded onto it. The vibrating plate generates ultrasonic waves only in the vicinity of the pinholes to jet and atomize the ...
N. Maehara, S. Nakane, K. Yamamoto, K. Iga   +3 more
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Air-assisted ultrasonic atomization

1996 IEEE Ultrasonics Symposium. Proceedings, 2002
We have established a correlation between the drop diameter with peak volume-percent of the drop-size distribution obtained in ultrasonic atomization and the wavelength of the capillary waves determined by the ultrasonic frequency in accordance with the Kelvin equation.
S.C. Tsai, P. Childs, P. Luu, A. Teshome, C.S. Tsai   +4 more
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Ultrasonic atomization of the DNA solution for atomic force microscopy

Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena, 1995
We have investigated the ultrasonic atomization of the deoxyribonucleic acid (DNA) solution as a simple preparation technique to image circular DNA molecules with the atomic force microscope. The DNA solution with a relatively high concentration (∼25 μg/ml) is ultrasonically atomized at the exciting frequency of 2.4 MHz.
Minoru Sasaki, Shigeru Okuma, Keizou Miyata, Kazuhiro Hane, Yutaka Takeda   +4 more
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Ultrasonic Atomization of Liquids

The Journal of the Acoustical Society of America, 1962
An experimental study was made of the mechanism by which the ultrasonic vibration of liquid surfaces causes atomization. At exciting frequencies in the range of 10 to 800 kc, uniform patterns of crossed capillary waves were found on the liquid surface when atomization occurred.
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Ultrasonic Atomization Amount for Different Frequencies

Japanese Journal of Applied Physics, 2011
The mass flow rate of ultrasonic atomization was estimated by measuring the vaporization amount from a bulk liquid with a fountain. The effects of ultrasonic frequency and intensity on the atomization characteristics were investigated when the directivities of the acoustic field from a transducer were almost the same.
Keiji Yasuda, Hiroyuki Honma, Zheng Xu, Yoshiyuki Asakura, Shinobu Koda   +4 more
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Production of SAC305 powder by ultrasonic atomization

Powder Technology, 2011
Ultrasonic atomization has been used for the production of high quality powders for soldering and soldering pastes. This research is to study the production of SAC305 powder employing an ultrasonic atomizer. Effects of operating parameters: melt temperature, melt feed rate, amplitude of acoustic wave and oxygen content in the atomizing vessel, on the ...
Sirikul Wisutmethangoon, Thawatchai Plookphol, Phairote Sungkhaphaitoon   +2 more
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Design and Atomization Experiments of an Ultrasonic Atomizer with a Levitation Mechanism

Applied Engineering in Agriculture, 2016
According to Lang equation, the diameter of droplet generated by an ultrasonic atomizer is inversely proportional to the ultrasonic drive frequency to the two-thirds power. In an ultrasonic aeroponic cultivation system, nutrient solution droplet sizes influence plant growth speed directly.
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ULTRASONIC ATOMIZATION OF LIQUIDS

Proceedings of the Sixth International Conference on Liquid Atomization and Spray Systems, 2023
Daniel Sindayihebura, Leon Bolle
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Ultrasonic Atomic Force Microscopy UAFM

2012
A version of scanning probe acoustic technique was developed as ultrasonic atomic force microscopy (UAFM), where higher order mode cantilever vibration is excited at its base (support). It enables precise imaging of both topography and elasticity of stiff samples such as metals and ceramics, without a need for bonding a transducer to the sample.
Kazushi Yamanaka, Toshihiro Tsuji
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