Customized and high-performing acoustic levitators for contact-free experiments

IF 6.7 3区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Journal of Science: Advanced Materials and Devices Pub Date : 2024-04-16 DOI:10.1016/j.jsamd.2024.100720
Smaragda-Maria Argyri , Carl Andersson , Nicolas Paillet , Lars Evenäs , Jens Ahrens , Asier Marzo , Víctor Contreras , Romain Bordes
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Abstract

Acoustic levitators are becoming increasingly common research instrumentation for contact-free, lab-in-a-droplet studies. Recently, levitators that employ multiple, small, ultrasonic transducers have gained popularity, given their low price, temperature and spatial stability, low voltage, and accessibility. Yet, the current state-of-the-art device, TinyLev, presents limitations for certain applications in terms of stability, strength, and compactness. Herein, we developed three new levitators and evaluated the effect of the construction parameters (e.g., distance of opposing arrays, number and arrangement of transducers, etc.) on their performance. The best performing levitator from this work had half the number of transducers, compared to TinyLev, though presented 1.7 and 3.5 times higher levitation capacity along the horizontal and vertical configurations, respectively, and 4.7 and 2.0 times higher horizontal and vertical stability of a levitated object, respectively. Additionally, we present a direct means to evaluate the acoustic radiation net force acting on a deformable object for uniaxial levitators, without the use of a microphone or a schlieren deflectometer for this type of levitators. The theoretical and experimental observations provide insights for adapting the acoustic levitator design for specific applications. Finally, we developed an open-source software which allows the evaluation of the acoustic pressure field generated by customized designs and provides the necessary files for 3D printing the scaffold of the levitator. This study aims to increase accessibility and promote further developments in contact-free experiments.

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用于非接触实验的定制高性能声学悬浮器
声学悬浮仪正日益成为非接触式、实验室液滴研究的常用研究仪器。最近,采用多个小型超声波传感器的悬浮器因其低廉的价格、温度和空间稳定性、低电压和易接近性而大受欢迎。然而,目前最先进的设备 TinyLev 在稳定性、强度和紧凑性方面对某些应用存在限制。在此,我们开发了三种新型悬浮器,并评估了结构参数(如对立阵列的距离、传感器的数量和排列等)对其性能的影响。与 TinyLev 相比,这项工作中性能最好的悬浮器的传感器数量仅为 TinyLev 的一半,但其水平和垂直配置的悬浮能力分别提高了 1.7 倍和 3.5 倍,悬浮物体的水平和垂直稳定性分别提高了 4.7 倍和 2.0 倍。此外,我们还提出了一种直接评估单轴悬浮器作用在可变形物体上的声辐射净力的方法,对于这类悬浮器,无需使用麦克风或施利尔偏转计。理论和实验观察结果为针对特定应用调整声学悬浮器设计提供了启示。最后,我们开发了一个开源软件,可以评估定制设计所产生的声压场,并提供三维打印悬浮器支架所需的文件。这项研究旨在提高非接触式实验的可及性并促进其进一步发展。
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来源期刊
Journal of Science: Advanced Materials and Devices
Journal of Science: Advanced Materials and Devices Materials Science-Electronic, Optical and Magnetic Materials
CiteScore
11.90
自引率
2.50%
发文量
88
审稿时长
47 days
期刊介绍: In 1985, the Journal of Science was founded as a platform for publishing national and international research papers across various disciplines, including natural sciences, technology, social sciences, and humanities. Over the years, the journal has experienced remarkable growth in terms of quality, size, and scope. Today, it encompasses a diverse range of publications dedicated to academic research. Considering the rapid expansion of materials science, we are pleased to introduce the Journal of Science: Advanced Materials and Devices. This new addition to our journal series offers researchers an exciting opportunity to publish their work on all aspects of materials science and technology within the esteemed Journal of Science. With this development, we aim to revolutionize the way research in materials science is expressed and organized, further strengthening our commitment to promoting outstanding research across various scientific and technological fields.
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