A method and system for generating acoustic tweezers
A technology of acoustic tweezers and sound field, which is applied in the field of acoustics, can solve the problems of acoustic tweezers' limiting ability, poor stability, and poor anti-interference strength, and achieve the effect of improving the limiting ability
Active Publication Date: 2022-04-26
SHENZHEN INST OF ADVANCED TECH
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Problems solved by technology
[0004] In order to solve the above-mentioned technical problems, the application provides a generation method and generation system of acoustic tweezers to solve the problems of poor limiting ability, stability and anti-interference strength of the acoustic tweezers generated by the acoustic tweezers generation method in the prior art
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[0059] The biomedical application of acoustic tweezers has the advantages of no harm and no specific requirements for the physical properties of the manipulated object. Compared with optical tweezers, acoustic tweezers have no requirement for the transparency of the propagation medium, and can be applied to a variety of different propagation media. Under the same energy, the force of sound radiation is much greater than that of light radiation, and larger objects can be manipulated. In addition, sound waves have better penetration capabilities, and acoustic tweezers can achieve non-contact manipulation through the walls of living organisms. Therefore, in recent years, the acoustic tweezers technology using ultrasonic radiation force has become a hot topic in academic research, and some progress has been made in the manipulation of particles in three-dimensional space.
[0060] Most of the existing 3D acoustic tweezers are applied in the air, and it is rare to realize the 3D ac...
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The present application discloses a method and system for generating acoustic tweezers, wherein, in the method for generating acoustic tweezers, a plurality of control sound fields whose sound trap stiffness meets requirements can be determined according to requirements, and the control can be reversely determined. The transmission phase of the transducer array element corresponding to the sound field, and then control the work of the transducer array element according to the emission phase of each transducer array element, and sequentially generate the control sound field in the control sound field sequence to realize the control of the transducer The time-division multiplexing of array elements forms a comprehensive sound field to control target particles. Since the comprehensive sound field is formed by multiple control sound fields arranged in sequence in time sequence, it can be superimposed with different control generation types or different sound field parameters. The control sound field is limited in different directions. Ability advantages, improve the limiting ability, stability and anti-interference strength of the comprehensive sound field.
Description
technical field [0001] The present application relates to the field of acoustic technology, and more specifically, to a method and system for generating acoustic tweezers. Background technique [0002] Acoustic tweezers, also known as miniature acoustic tweezers (Acoustical Tweezers), is a technology that uses the mechanical effects of sound waves to perform non-contact manipulation of tiny objects. [0003] Most of the existing acoustic tweezers control technologies can realize the control of particles in the air. There are few studies on the application of acoustic tweezers in complex environments such as living bodies. The use of acoustic tweezers for particle control in complex environments such as living bodies requires the limitation of acoustic tweezers. Ability, the limiting ability of the acoustic tweezers generated by the control technology generated by the acoustic tweezers in the prior art is difficult to meet the requirements of the limiting ability, stability a...
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IPC IPC(8): G10K11/34
CPCG10K11/346
Inventor 马腾胡颀王丛知肖杨郑海荣
Owner SHENZHEN INST OF ADVANCED TECH