The Development of Piezoelectric Inchworm Actuator Clamped With Magnetorheological Elastomer and Its Potential Application in Brain–Computer Interface Implantation

Lu, Qitao; Ma, Jijie; Lin, Xin; Hu, Yili; Li, Jianping; Wen, Jianming

doi:10.1109/tie.2022.3176293

Cited by 17 publications

(6 citation statements)

References 42 publications

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“…Sun et al [97] Inchworm-actuated 60 5100 μm s À1 1.6 N -Lu et al [98] Inchworm-actuated 24 1250.4 μm s À1 0.42 N 100 Â 100Â-Ghenna et al [99] Inchworm-actuated 1.25 2.9 μm s À1 5 N 100 Â 16 Â 7…”

Section: Series Multi-dof Piezoelectric Actuationmentioning

confidence: 99%

“…To simplify the complicated structure and control system, Ma et al [ 49 ] developed a walker–pusher inchworm actuator actuated by two piezoelectric stacks with the characteristics of large carrying capacity and no backward motion, the proposed actuator achieved the maximum velocity of 0.471 mm s −1 and the carrying load of 6.1 kg. Based on the three‐jaw‐type clamping mechanism, Deng et al [ 96 ] proposed a compact inchworm piezoelectric actuator, which actuated an output shaft to realize linear motion based on the automatic centering and guidance functions of the three‐jaw‐type clamping mechanism; the proposed actuator achieved the maximum velocity of 155.5 μm s −1 and the thrust force of 12.3 N. Different from the traditional structure of the inchworm actuator, the clamping switching was achieved by only one piezoelectric actuator based on flexible supported baffles, and a high‐speed bidirectional inchworm actuator using two piezoelectric actuators was developed, [ 97 ] which achieved the maximum velocity of 5.1 mm s −1 and the thrust force of 1.6 N. To solve the problems of complex control and uneven friction, a magnetorheological elastomer (MRE) was used as the material of clamping unit, and a piezoelectric inchworm actuator with high‐positioning accuracy and large output force was proposed, [ 98 ] which used an MRE–capillary–cover sandwich structure to achieve rigid‐to‐elastomeric clamping, so that the feeding motions were performed. Ghenna et al [ 99 ] proposed a compact inchworm piezoelectric linear motor with high integration flexibility and blocking force, which consisted of an actuation mechanism and two doubled clamping mechanisms; the proposed motor achieved the maximum velocity of 2.9 μm s −1 under the voltage of 80 V and the frequency of 1.25 Hz.…”

Section: Cross‐scale Piezoelectric Actuationmentioning

confidence: 99%

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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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Section: Series Multi-dof Piezoelectric Actuationmentioning

confidence: 99%

Section: Cross‐scale Piezoelectric Actuationmentioning

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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“…Liu et al [ 22 ] proposed an actuator for precision positioning based on piezoelectric stack actuation and electrorheological fluids. Its maximum speed is 14.8 mm/s and the output force is 42 N. Lu et al [ 23 ] proposed the use of magnetorheological elastomers for the inchworm actuator powered by batteries. Its maximum speed is 1.25 mm/s, and the output force is 0.42 N. Wang et al [ 24 ] designed an actuator consisting of a piezoelectric stack, a DC motor, two permanent magnets, and a photoelectric sensor.…”

Section: Introductionmentioning

confidence: 99%

A Single-Clamp Inchworm Actuator with Two Piezoelectric Stacks

Liu,

Ji,

Zhang

et al. 2024

Micromachines

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Inchworm piezoelectric actuators have attracted much attention in the field of precision positioning due to the advantages of a large stroke, high output force, and high resolution. However, traditional inchworm piezoelectric actuators use two sets of clamps and a set of drive structures to achieve stepping motion, which generally requires at least three piezoelectric stacks, resulting in a complex structure and the control system. Several methodologies have been advanced to minimize the utilization of piezoelectric stacks. However, there still exists the issue of excessive volume. Therefore, an inchworm piezoelectric actuator with a single-clamp and single drive structure is proposed in the study, which provides a compact size and smaller volume. The clamping mechanism comprises two sets of clamping feet with opposite displacement, which alternate contact with the guide frame and adjustable plate to ensure that the clamping mechanism always has frictional force and accomplishes the stepping motion. The testing of the actuator’s step distance, output force, and other parameters was conducted utilizing a displacement sensor. Experimental results indicate that the actuator achieved a maximum speed of 174.3 μm/s and an output force of 8.6 N when the frequency and voltage were 19 Hz and 150 V.

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“…The stepper motor (SM) draws increasing attention due to its long service life and its mechanical performance in repeatability and stability. [18][19][20] Nevertheless, the SM requires a transmission mechanism such as ball screws, gears, racks, and bearings, which are usually heavy and bulky; thus, it is not easy to be carried by MSC. Besides, the SM is susceptible to electromagnetic interference, affecting the filtering and focusing functions in the high magnetic field environment, which is unfavorable for MSC working in complex environments (e.g., deep space).…”

Section: Introductionmentioning

confidence: 99%

Toward Compact Motorized Lens: Switch and Focus a Filter Wheel with Single Piezoelectric Tube

Wang,

Chen,

Deng

et al. 2023

Adv Materials Technologies

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Multispectral cameras (MSCs) have the capability of detecting and analyzing features invisible to human eyes and are of interest for many applications. However, the traditional MSC suffers from bulkiness since the light filtering and optical focusing mechanisms are independent. Herein, it proposed an integrated strategy that implements two functions through a tunable filtering‐focusing mechanism (TFFM), driven by two degrees of freedom (two‐DOF) piezoelectric tube actuator (PTA). The TFFM can realize light filtering and optical focusing through the rotary and linear motions of PTA. The configuration of PTA is presented, and the working principle is discussed. Then, prototypes of PTA and TFFM are developed, weighing merely 5.5 and 8 g, sizing of Ø7 × 21.4 mm and Ø35 × 7 mm, demonstrating the merits of lightweight and miniaturization. Experiments validate the effectiveness of TFFM, including multispectral images acquired with 0.1 s through rotary motion, focused images obtained with a linear speed of 60.2 mm−1s, and a series of images with different sharpness and wavelengths. The sharpness evaluation algorithms are adopted to determine the sharpest image. The work contributes to reducing the volume of MSC systems with multifunctionalities while keeping the devices simple, providing a practical and effective solution for the integrated design of MSC.

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The Development of Piezoelectric Inchworm Actuator Clamped With Magnetorheological Elastomer and Its Potential Application in Brain–Computer Interface Implantation

Cited by 17 publications

References 42 publications

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

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

A Single-Clamp Inchworm Actuator with Two Piezoelectric Stacks

Toward Compact Motorized Lens: Switch and Focus a Filter Wheel with Single Piezoelectric Tube

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