Actuation of Mobile Microbots: A Review

Hussein, Hussein; Damdam, Asrar; Ren, Liangjie; Obeid Charrouf, Youssef; Challita, Jack; Zwain, Mahdi; Fariborzi, Hossein

doi:10.1002/aisy.202300168

Cited by 20 publications

(6 citation statements)

References 228 publications

(597 reference statements)

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“…As a result, achieving accuracy in operations or navigating within narrow working environments becomes a formidable task for traditional robotic systems. [ 258–260 ]…”

Section: The Applications Of Multi‐dof Cross‐scale Piezoelectric Actu...mentioning

confidence: 99%

Review on Multiple‐Degree‐of‐Freedom Cross‐Scale Piezoelectric Actuation Technology

Chang,

Chen,

Zhang

et al. 2024

Advanced Intelligent Systems

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Piezoelectric actuation technology has been widely used in various precise‐oriented fields. Its notable advantages include high resolution, rapid response speed, output force with high density, and immunity to electromagnetic interference. Characteristics of cross‐scale and multiple‐degree‐of‐freedom (multi‐DOF) output motions are of utmost importance in the context of micro‐/nanopositioning technology. For decades, researchers have been working to develop various piezoelectric devices that exploit these important properties. In this review, a comprehensive review of recent research efforts in the field of cross‐scale multi‐DOF piezoelectric drive technology is provided. To commence, it provides an in‐depth exploration of the unique advantages associated with piezoelectric actuation, demonstrating them through comparative analyses with alternative actuation methods. Subsequently, the complexity of piezoelectric cross‐scale motion is introduced, and the multi‐DOF piezoelectric motion is classified in detail. Furthermore, the practical applications of multi‐DOF cross‐scale piezoelectric actuation technology are systematically elucidated, highlighting its versatility and suitability in real‐world environments. Finally, an in‐depth discussion that addresses the challenges encountered in the field is provided, and the prospective directions for further developments in piezoelectric actuation technology are outlined. This scholarly contribution plays an important role in guiding future research and innovative initiatives.

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“…As a result, achieving accuracy in operations or navigating within narrow working environments becomes a formidable task for traditional robotic systems. [ 258–260 ]…”

Section: The Applications Of Multi‐dof Cross‐scale Piezoelectric Actu...mentioning

confidence: 99%

Review on Multiple‐Degree‐of‐Freedom Cross‐Scale Piezoelectric Actuation Technology

Chang,

Chen,

Zhang

et al. 2024

Advanced Intelligent Systems

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“…Moreover, the advantages of piezoelectric motors, such as magnetic field-free operation, gear-free direct drive of loads, and self-locking abilities make these motors highly attractive compared to electromagnetic or other types of motion sources [ 21 , 22 ]. On the other hand, complex driving schematics, high operation frequencies, as well as these motors’ lack of direct integration abilities with small devices limit their application [ 23 ]. This paper presents numerical and experimental investigations of a novel low-profile piezoelectric motor that can be directly mounted to a printed circuit board (PCB).…”

Section: Introductionmentioning

confidence: 99%

Low Profile Triangle-Shaped Piezoelectric Rotary Motor

Čeponis,

Jūrėnas,

Mažeika

2024

Micromachines

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In this paper, we present research on a novel low-profile piezoelectric rotary motor with a triangle-shaped stator. The stator of the motor comprises three interconnected piezoelectric bimorph plates forming an equilateral triangle. Bimorph plates consist of a passive layer fabricated from stainless steel and four piezo ceramic plates glued to the upper and lower surfaces. Furthermore, spherical contacts are positioned on each bimorph plate at an offset from the plate’s center. Vibrations from the stator are induced by a single sawtooth-type electric signal while the frequency of the excitation signal is close to the resonant frequency of the second out-of-plane bending mode of the bimorph plate. The offset of the spherical contacts allows for a half-elliptical motion trajectory. By contrast, the forward and backward motion velocities of the contacts differ due to the asymmetrical excitation signal. The inertial principle of the motor and the angular motion of the rotor were obtained. Numerical and experimental investigations showed that the motor operates at a frequency of 21.18 kHz and achieves a maximum angular speed of 118 RPM at a voltage of 200 Vp-p. Additionally, an output torque of 18.3 mN·mm was obtained under the same voltage. The ratio between motor torque and weight is 36 mN·mm/g, while the ratio of angular speed and weight is 28.09 RPM/g.

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“…Notably, there is substantial interest in micropump technologies, given their capacity to precisely control the movement of drugs or therapeutic agents via channels, facilitating their transfer from reservoirs to targeted locations [2]. A variety of actuation mechanisms, including thermo-responsive, piezoelectric, electromagnetic, and soft actuators, have been used in the development of micropumps, as reported in the literature [3][4][5]. These actuators offer distinctive characteristics and advantages that make them suitable for numerous applications, depending on their needs.…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, electrostatic actuation, which is compatible with the microfabrication process, offers a fast response and minimal power consumption [12,13]. Yet, this approach still has practical and technological limitations, notably in terms of limited force and displacement [3]. Using a similar principle as electrostatic actuators, dielectric elastomer actuators (DEA) that respond to field offer a significant degree of deformability, high actuation strain (>100%), and fast response [14].…”

Section: Introductionmentioning

confidence: 99%

Electrostatic-hydraulic coupled soft actuator for micropump application

Ahmad Fuaad,

Hasan,

Muthalif

et al. 2023

Smart Mater. Struct.

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The development of a soft actuator with high displacement is crucial for the effective operation of micropumps, ensuring a high fluid pump rate. This study introduces an innovative approach by presenting the design and fabrication of a novel electrostatic-hydraulic coupled soft actuator for a micropump within a microfluidic system. This pioneering soft actuator, leveraging electrostatic-hydraulic coupling, showcases a unique solution to enhance the performance of micropumps. The versatility of such a soft actuator makes it particularly promising for biomedical applications. The actuator comprises dielectric fluid in an elastomeric shell and electrodes to form the out-of-plane fluid-amplified displacement. This displacement amplification was used to generate a pumping actuation in the micropump. The actuator was characterized in terms of dielectric fluid volume, electrode size, temporal response, and amplification displacement. The soft actuator showed a maximum amplified displacement of 0.51 mm at 10 kV of the applied voltage, but a higher voltage caused a dielectric breakdown. Moreover, the actuator demonstrated the ability to operate at frequencies of 0.25 Hz and 0.1 Hz. The results of the study indicate that the fabricated electrostatic-hydraulic coupled soft actuator is a dependable and effective method of actuation for a micropump in a microfluidic system. The experimental characterization of the micropump revealed a maximum flow rate of 2304 μl min−1.

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Actuation of Mobile Microbots: A Review

Cited by 20 publications

References 228 publications

Review on Multiple‐Degree‐of‐Freedom Cross‐Scale Piezoelectric Actuation Technology

Review on Multiple‐Degree‐of‐Freedom Cross‐Scale Piezoelectric Actuation Technology

Low Profile Triangle-Shaped Piezoelectric Rotary Motor

Electrostatic-hydraulic coupled soft actuator for micropump application

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