scholarly journals Analysis and prediction of shock formation in acoustic energy transfer systems

2020 ◽  
Vol 128 (23) ◽  
pp. 234902
Author(s):  
Vamsi C. Meesala ◽  
Muhammad R. Hajj ◽  
Shima Shahab
Keyword(s):  
Energy Transfer ◽  
Acoustic Energy ◽  
Shock Formation

Simulating Ultrasound Piezoelectric Power Transfer in the Near Field and Experimental Validations

2021 ◽  
Vol 05 ◽  
Author(s):  
Ammar Mohammed ◽  
Changki Mo ◽  
John Miller ◽  
David Lowry ◽  
Jassim Alhamid
Keyword(s):  
Energy Transfer ◽  
Lead Zirconate Titanate ◽  
Near Field ◽  
Acoustic Power ◽  
Acoustic Energy ◽  
Transfer Efficiency ◽  
Ultrasonic Power ◽  
Power Transfer ◽  
Piezoelectric Energy ◽  
Power Transfer Efficiency

Background: Acoustic power transfer is a method for wireless energy transfer to implanted medical devices that permits a greater range of separation between transmitter and receiver than is possible with inductive power transfer. In some cases, short-distance ultrasonic power transfer may be employed; consequently, their operation may be complicated by the near-field aspects of piezoelectric acoustic energy transfer. Methods: A piezoelectric energy transfer system consisting of two lead zirconate titanate (PZT) transducers was analyzed in this work using a combination of experimental measurements and computer simulations. Results: Simulations using the COMSOL Software package showed good agreement with a measured output voltage as a function of the distance between and alignment of the transmitter and receiver with water as a medium. We also simulated how operating frequency affects power transfer efficiency at various distances between the transmitter and receiver and found reasonable agreement with experiments. We report model predictions for power transfer efficiency as a function of the thickness and diameter of the transmitter and receiver. Conclusion: The results show that with proper choice of parameters, piezoelectric systems can provide high power transfer efficiency in the near-field region.

scholarly journals Acoustic Energy Transfer by Friction Induced Vibrations

2017 ◽  
Vol 199 ◽  
pp. 1356-1361 ◽  
Author(s):  
G. Lacerra ◽  
F. Massi ◽  
E. Chatelet ◽  
E. Moulin
Keyword(s):  
Energy Transfer ◽  
Acoustic Energy

Holographic mirrors for spatial ultrasound modulation in contactless acoustic energy transfer systems

2021 ◽  
Vol 119 (14) ◽  
pp. 144101
Author(s):  
Ahmed Sallam ◽  
Vamsi C. Meesala ◽  
Muhammad R. Hajj ◽  
Shima Shahab
Keyword(s):  
Energy Transfer ◽  
Acoustic Energy ◽  
Ultrasound Modulation

scholarly journals Micro triboelectric ultrasonic device for acoustic energy transfer and signal communication

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Chen Chen ◽  
Zhen Wen ◽  
Jihong Shi ◽  
Xiaohua Jian ◽  
Peiyang Li ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Acoustic Energy ◽  
Ultrasonic Device
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