Scattered near-field and induced current of a beam wave by pits on optical disks using boundary element analysis

Radio Science ◽  
1991 ◽  
Vol 26 (1) ◽  
pp. 281-289 ◽  
Author(s):  
Yasumitsu Miyazaki ◽  
Katsuya Manabe
Keyword(s):  
Boundary Element ◽  
Near Field ◽  
Induced Current ◽  
Element Analysis ◽  
Beam Wave ◽  
Boundary Element Analysis ◽  
Optical Disks

Study on the Conditions of Near-Field Acoustic Levitation

2010 ◽  
Vol 97-101 ◽  
pp. 4135-4140 ◽  
Author(s):  
Yan De Liang ◽  
Hong Ling ◽  
Yuan Zhang
Keyword(s):  
Finite Element ◽  
Boundary Element ◽  
Radiation Pressure ◽  
Acoustic Radiation ◽  
Near Field ◽  
Acoustic Levitation ◽  
Element Analysis ◽  
Boundary Element Analysis ◽  
Acoustic Radiation Pressure

This paper establishes a near-field acoustic radiation pressure solving model applying with acoustics theory and derives an initial acoustic levitation calculating formula of rotundity objects. Combining with finite element and boundary element analysis, levitate conditions of levitated objects are calculated. This paper takes rectangular ultrasonic oscillator for example, testing and analyzing conditions of near-field acoustic levitation by using self-designed test equipments, the results are proved to be better.

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