灵活的鱼尾压电具有双向抽特性
Naiyue Wang1, Zhaoqiang Chen2, Junxuan Mai2
1School of Mechanical and Electrical Engineering, North China Institute of Aerospace Engineering, Langfang 065000, Hebei, China.
The Review of scientific instruments
|October 31, 2025
概括
这项研究介绍了一种新的无门的压电,能够实现双向液体流量控制. 这项创新通过改变振动模式与频率来增强微流体应用的流体控制.
科学领域:
- 微流体学 微流体学
- 生物医学工程 生物医学工程
- 材料科学 材料科学 材料科学
背景情况:
- 动态无门压电提供小型化和没有门歇斯底里.
- 目前的设计仅限于单向液体送.
- 这种限制限制了它们在微流体学中的应用潜力.
研究的目的:
- 设计了一种新的无门压电,可调节液体流动方向.
- 为了克服现有的压电的单向流量限制.
- 为了增强微流体系统的流体控制能力.
主要方法:
- 灵感来自鱼尾结构,灵活的鱼尾被整合到一个压电中.
- 通过调整激发频率来改变压电振动器的振动模式.
- 使用多普勒扫描激光振动计和流场观测来分析流体动力学.
主要成果:
- 灵活的鱼尾展示了基于激发频率的可调节液体流动方向.
- 最大向前流量达到23.68毫升/分钟在105赫兹 (160V).
- 在230 Hz (160 V) 时,最大反流速达到5.76毫升/分钟.
结论:
- 灵活的鱼尾压电成功实现了双向流体控制.
- 这项研究提供了一个更灵活,更高效的流体控制技术.
- 潜在的应用包括微流体混合,药物输送和生物技术研究.
相关概念视频
Charging Conductors By Induction
The Earth is a good conductor of electricity, and it is so big that it can be considered an infinite source or sink of charges. It can easily exchange charges with any matter.
Generally, conductors like metals do not allow any excess charge to be present on them. Any excess charge added to metals easily flows away, for example, when a metal is placed on the Earth. This process is called earthing.
However, conductors can be charged by a process called induction. For example, consider charging a...
Generally, conductors like metals do not allow any excess charge to be present on them. Any excess charge added to metals easily flows away, for example, when a metal is placed on the Earth. This process is called earthing.
However, conductors can be charged by a process called induction. For example, consider charging a...
DC Battery
A conductor needs to be a component of a path that creates a closed loop or full circuit to have a continuous current flowing through it. A current starts to flow if an electric field is created inside an isolated conductor that is not part of a full circuit. The conductor quickly develops a net positive charge at one end and a net negative charge at the other. These charges generate an electric field opposite the direction of the applied electric field, which reduces the current. Eventually,...
Clipper Circuit
A clipper circuit is a fundamental wave-shaping device that harnesses the unique properties of diodes to alter and control waveform characteristics. This technology is widely used in electronic devices, especially in television and radar communication systems, where it enhances waveform modulation in both transmitters and receivers.
The operation of a clipper circuit can be exemplified by analyzing a dual-clipper configuration setup that integrates two ideal diodes, each paired with a biasing...
The operation of a clipper circuit can be exemplified by analyzing a dual-clipper configuration setup that integrates two ideal diodes, each paired with a biasing...
Voltage Doubler Circuit
A voltage doubler circuit integrates two main components: a clamping section and a rectifier section. The clamping section consists of a capacitor (C1) and a diode (D1), whereas the rectifier section is equipped with another diode (D2) and capacitor (C2). This circuit produces an output voltage with twice the amplitude of the sinusoidal input voltage.
Types of Reversible Electrodes
For electrode reversibility to be maintained, all the reactants and products involved in the half-reaction must be present at the electrode. There are several types of reversible electrodes (half-cells).In metal-metal-ion electrodes, a metal balances electrochemically with a solution of its own ions. Examples are Cu2+|Cu and Zn2+|Zn. Metals that react with the solvent, like group 1 and most group 2 metals, which react with water, and zinc, which reacts with aqueous acidic solutions, cannot be...
The Electrical Double Layer
In the region where two bulk phases meet, an intricate electric charge distribution arises due to charge transfer, ion adsorption, molecular orientation, and charge distortion. This complex distribution is commonly referred to as the electrical double layer.When a solid electrode interfaces with ions in an electrolyte solution, the speed of electron transfer dictates the rates of oxidation and reduction. The electrode acquires a charge through the escape of atoms into the solution as cations or...


