Design of a linear-rotary ultrasonic motor for optical focusing inspired by the bionic motion principles of the earthworms

Wang, Yingzhi; Deng, Jie; Zhang, Shijing; Li, He; Chen, Weishan; Liu, Yingxiang

doi:10.1080/19475411.2022.2084173

Cited by 17 publications

(11 citation statements)

References 41 publications

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“…In this work, a tube‐shaped stator is designed for the two‐DOF RPA since it possesses various advantageous features, including lightweight, low‐profile, and facile fabrication, which can be further miniaturized compared with our previous study. [ 38 ]…”

Section: Resultsmentioning

confidence: 99%

“…In this work, a tube-shaped stator is designed for the two-DOF RPA since it possesses various advantageous features, including lightweight, low-profile, and facile fabrication, which can be further miniaturized compared with our previous study. [38] Interestingly, the piezoelectric tube can be regarded as the biological muscle that can contract and relax based on the inverse piezoelectric effect; thus, the piezoelectric tube's vibration modes are formed according to the cheetah's galloping gait, namely, when the voltage signals were applied to the piezoelectric tube, it generated a linear strain, which was consistent with the deformation mechanism of muscle. Moreover, the piezoelectric tube exhibits an ultrafast vibration state since it can work at the resonant state and the resonant frequency within the inaudible range.…”

Section: Bionic Vibration Modes and Working Principle Of Piezoelectri...mentioning

confidence: 94%

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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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Section: Resultsmentioning

confidence: 99%

Section: Bionic Vibration Modes and Working Principle Of Piezoelectri...mentioning

confidence: 94%

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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“…As plotted in Figure 5, MPRs can be divided into the resonant type ones and nonresonant type ones in the light of whether the piezoelectric actuating elements work at their resonant mode, and the non-resonant type MPRs can be Relatively small deformation, complex and large structure, and complex assembly process further divided into direct driving type ones, stepping driving type ones and inertial actuating ones. [141][142][143][144][145][146] In this section, we will systematically sort out and introduce MPRs with different working principles and compare their characteristics.…”

Section: Mprs With Different Working Principlesmentioning

confidence: 99%

Developments and Challenges of Miniature Piezoelectric Robots: A Review

Li,

Deng,

Zhang

et al. 2023

Advanced Science

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Miniature robots have been widely studied and applied in the fields of search and rescue, reconnaissance, micromanipulation, and even the interior of the human body benefiting from their highlight features of small size, light weight, and agile movement. With the development of new smart materials, many functional actuating elements have been proposed to construct miniature robots. Compared with other actuating elements, piezoelectric actuating elements have the advantages of compact structure, high power density, fast response, high resolution, and no electromagnetic interference, which make them greatly suitable for actuating miniature robots, and capture the attentions and favor of numerous scholars. In this paper, a comprehensive review of recent developments in miniature piezoelectric robots (MPRs) is provided. The MPRs are classified and summarized in detail from three aspects of operating environment, structure of piezoelectric actuating element, and working principle. In addition, new manufacturing methods and piezoelectric materials in MPRs, as well as the application situations, are sorted out and outlined. Finally, the challenges and future trends of MPRs are evaluated and discussed. It is hoped that this review will be of great assistance for determining appropriate designs and guiding future developments of MPRs, and provide a destination board to the researchers interested in MPRs.

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“…Wang et al proposed a novel two-DOF ultrasonic motor to provide a feasible method of application in the lens autofocus of the optical system. The prototype achieves the maximum rotary and linear speeds of 3319.6 rpm and 57.6 mm s −1 , respectively [15]. Pan et al presented a reusable non-explosive release actuator using shape memory alloy wire for high load and low shock [16].…”

Section: Introductionmentioning

confidence: 99%

Piezoelectric actuation combined with ultrasound for enhancing drug delivery in gastric mucosa phantom in vitro

Shen,

Peng,

Zhu

et al. 2023

Smart Mater. Struct.

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In recent years, treatments for gastrointestinal malignant tumors have attracted a lot of attention. However, due to size limitations and the working environment of gastrointestinal peristalsis, traditional treatment methods have poor efficacy. Herein, we proposed a novel drug release method of piezoelectric actuation combined with ultrasound in the endoscope biopsy channel. A bidirectional piezoelectric actuator was manufactured and inserted into the endoscope with an ultrasonic transducer, adjusting the distance between the transducer and the lesion. A gastric mucosa phantom was fabricated and a finite element (FE) model was established for ultrasound thermal calculation. For enhancing the drug release rate, a pulse-echo method was conducted using a Laboratory Virtual Instrument Engineering Workbench (LabVIEW) program for real-time monitoring and feedback. The results of FEM calculations show that the temperature in the phantom can reach the melting-phase transition temperature of the TSL (41 ± 1 °C). The drug release rate can increase from 2.2 × 10−4 mg min−1 to 39.2 × 10−4 mg min−1 with our actuator, the latter is nearly 18 times the former. Furthermore, the drug release rate can be increased to a maximum value of 45.8 × 10−4 mg min−1 by optimizing the driving parameter of our actuator. Therefore, our method has a bright application in targeted drug delivery of major gastrointestinal diseases in the future.

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Design of a linear-rotary ultrasonic motor for optical focusing inspired by the bionic motion principles of the earthworms

Cited by 17 publications

References 41 publications

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

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

Developments and Challenges of Miniature Piezoelectric Robots: A Review

Piezoelectric actuation combined with ultrasound for enhancing drug delivery in gastric mucosa phantom in vitro

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