A Highly Sensitive Triboelectric Vibration Sensor for Machinery Condition Monitoring (Adv. Energy Mater. 37/2022)

Zhao, Hongfa; Shu, Mingrui; Ai, Zihao; Sou, Kit Wa; Lu, Chengyue; Jin, Yuchao; Wang, Zihan; Wang, Jiyu; Wu, Changsheng; Cao, Yidan; Xu, Xiaomin; Ding, Wenbo

doi:10.1002/aenm.202270154

Cited by 9 publications

(14 citation statements)

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Section: Working Mechanism Of Tengmentioning

confidence: 99%

“…developed a highly sensitive self‐powered vibration TENG (VS‐TENG) composed of foamed aluminum and FEP film with a gold‐plated electrode. [ 61 ] Only with its elasticity, FEP film can repeatedly oscillate under the vibration excitation. Specifically, it has been resoundingly engaged in vibration detection for gearbox, compressors, etc., by converting the vibration to an electric signal, which may motivate its application in mechanical VEH.…”

Section: Veh Based On C‐s Mode Tengmentioning

confidence: 99%

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Recent Advances in Mechanical Vibration Energy Harvesters Based on Triboelectric Nanogenerators

Dong

et al. 2023

Small

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With the development of autonomous/smart technologies and the Internet of Things (IoT), tremendous wireless sensor nodes (WSNs) are of great importance to realize intelligent mechanical engineering, which is significant in the industrial and social fields. However, current power supply methods, cable and battery for instance, face challenges such as layout difficulties, high cost, short life, and environmental pollution. Meanwhile, vibration is ubiquitous in machinery, vehicles, structures, etc., but has been regarded as an unwanted by‐product and wasted in most cases. Therefore, it is crucial to harvest mechanical vibration energy to achieve in situ power supply for these WSNs. As a recent energy conversion technology, triboelectric nanogenerator (TENG) is particularly good at harvesting such broadband, weak, and irregular mechanical energy, which provides a feasible scheme for the power supply of WSNs. In this review, recent achievements of mechanical vibration energy harvesting (VEH) related to mechanical engineering based on TENG are systematically reviewed from the perspective of contact–separation (C‐S) and freestanding modes. Finally, existing challenges and forthcoming development orientation of the VEH based on TENG are discussed in depth, which will be conducive to the future development of intelligent mechanical engineering in the era of IoT.

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Section: Working Mechanism Of Tengmentioning

confidence: 99%

Section: Veh Based On C‐s Mode Tengmentioning

confidence: 99%

Recent Advances in Mechanical Vibration Energy Harvesters Based on Triboelectric Nanogenerators

Dong

et al. 2023

Small

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“…One solution to overcome this challenge is developing self‐powered vibration sensors. [ 7 ] Vibration‐driven environmental energy harvesting (VEH) technologies employ energy‐converting devices to convert environmental vibration energy into electrical energy. Examples of VEH devices include piezoelectric, [ 8,9 ] electrostatic, [ 10 ] electromagnetic, [ 11 ] magnetostrictive, [ 12 ] and triboelectric.…”

Section: Introductionmentioning

confidence: 99%

Advances in Wearable Piezoelectric Sensors for Hazardous Workplace Environments

et al. 2023

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Recent advances in wearable energy harvesting technology as solutions to occupational health and safety programs are presented. Workers are often exposed to harmful conditions-especially in the mining and construction industries-where chronic health issues can emerge over time. While wearable sensors technology can aid in early detection and long-term exposure tracking, powering them and the associated risks are often an impediment for their widespread use, such as the need for frequent charging and battery safety. Repetitive vibration exposure is one such hazard, e.g., whole body vibration, yet it can also provide parasitic energy that can be harvested to power wearable sensors and overcome the battery limitations. This review can critically analyze the vibration effect on workers' health, the limitations of currently available devices, explore new options for powering different personal protective equipment devices, and discuss opportunities and directions for future research. The recent progress in self-powered vibration sensors and systems from the perspective of the underlying materials, applications, and fabrication techniques is reviewed. Lastly, the challenges and perspectives are discussed for reference to the researchers who are interested in self-powered vibration sensors.

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“…[ 26–28 ] The most recent state‐of‐the‐art TVS reached 2 kHz frequency signal output, but its sensitivity (≈0.01 V g −1 at more than a few kilohertz of vibration frequencies) still required improvement. [ 44 ] Regardless of the structure, getting a wider bandwidth requires a smaller driving resistance force, and obtaining greater sensitivity requires sufficient mass to obtain energy. Therefore, the balance between a small driving resistance force and sufficient mass remains a challenge, which is a key question in designing a self‐powered sensor capable of measuring a wider frequency range and higher sensitivity to expand their application.…”

Section: Introductionmentioning

confidence: 99%

A Highly Sensitive Triboelectric Quasi‐Zero Stiffness Vibration Sensor with Ultrawide Frequency Response

Wang

et al. 2023

Advanced Science

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Sensors based on triboelectric nanogenerators (TENGs) have gained worldwide interest owing to their advantages of low cost and self‐powering. However, the detection of most triboelectric vibration sensors (TVS) is restricted to low frequency, whereas high‐frequency vibration signals are successfully measured in recent studies; their sensitivity still requires improvement. Hence, a highly sensitive vibration sensor based on TENG (HSVS‐TENG) with ultrawide frequency response is presented. This study is the first to introduce a quasi‐zero stiffness structure into the TENG to minimize the driving force by optimizing the magnetic induction intensity and the weight of the moving part. The results show that the HSVS‐TENG can measure vibrations with frequencies ranging from 2.5 to 4000 Hz, with a sensitivity ranging from 0.32 to 134.9 V g−1. Moreover, the sensor exhibits a good linear response versus the applied acceleration, and the linearity ranges from 0.08 to 2.81 V g−1. The self‐powered sensor can monitor the running state and fault type of the key components with a recognition accuracy of 98.9% by leveraging machine‐learning algorithms. The results reach a new height for the ultrawide frequency response and high sensitivity of the TVS and provide an idea for a follow‐up high‐resolution TVS.

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A Highly Sensitive Triboelectric Vibration Sensor for Machinery Condition Monitoring (Adv. Energy Mater. 37/2022)

Cited by 9 publications

References 0 publications

Recent Advances in Mechanical Vibration Energy Harvesters Based on Triboelectric Nanogenerators

Recent Advances in Mechanical Vibration Energy Harvesters Based on Triboelectric Nanogenerators

Advances in Wearable Piezoelectric Sensors for Hazardous Workplace Environments

A Highly Sensitive Triboelectric Quasi‐Zero Stiffness Vibration Sensor with Ultrawide Frequency Response

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