Detection and measurement of impacts in composite structures using a self-powered triboelectric sensor

Garcia, Cristobal; Trendafilova, Irina; Río, José Sánchez del

doi:10.1016/j.nanoen.2018.11.055

Cited by 46 publications

(27 citation statements)

References 52 publications

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“…Additional SEM images of H-PVB and C-PVB films at various hair concentrations are shown in Figure S2. Figure a shows triboelectric series, including the material used in this study. − PFA, which is used as a counter film, has a very high negative charge affinity (−190 nC J –1 ), thus attracting electrons from the contact material . Therefore, PVP with a very large positive charge affinity and PVB with a negative charge affinity lose electrons to PFA.…”

Section: Resultsmentioning

confidence: 99%

Eco-Friendly Keratin-Based Additives in the Polymer Matrix to Enhance the Output of Triboelectric Nanogenerators

Joo

Kim

Lee

et al. 2022

ACS Appl. Bio Mater.

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A triboelectric nanogenerator (TENG) is an energy generator that converts mechanical energy into electrical energy using triboelectricity at a nanoscale. Given their potential application as power sources in electronic devices, various attempts have been made to improve their output performance. Here, we present an eco-friendly, low-cost, and facile fabrication method to enhance TENG characteristics with keratin protein additives. Keratin sources, human and cat hair, are processed into powder and added to the friction layer, which increases their positive charge affinity, thereby boosting the output performance of the TENG. The output performances of the keratin-added TENG (K-TENG) are measured in the vertical contact-separation mode, with both additives having the highest output values at 5 wt % load. The K-TENG generates more output voltage and current values than the pristine TENG by 90 and 208%, respectively. Hence, we conclude that this method would potentially promote TENG as a strong candidate for a competitive "green" energy harvesting device in future electronics applications.

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Section: Resultsmentioning

confidence: 99%

Eco-Friendly Keratin-Based Additives in the Polymer Matrix to Enhance the Output of Triboelectric Nanogenerators

Joo

Kim

Lee

et al. 2022

ACS Appl. Bio Mater.

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“…22b. Moreover, the performance of the TENG-based high-g impact sensor is enhanced by optimizing the material [79].…”

Section: ) Self-powered Sensors For High-g Impact Applicationsmentioning

confidence: 99%

Ammunition Reliability Against the Harsh Environments During the Launch of an Electromagnetic Gun: A Review

2019

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Electromagnetic railguns have an advantage over traditional chemical propulsion weapons, in that the projectile can be accelerated to extremely high speeds and effective damage can be achieved. However, during the launch from an electromagnetic railgun, the ammunition will be subject to a harsh environment, including very strong and violently changing electromagnetic fields, high-g acceleration impact, high temperatures, and so on; and thus, the reliability of the fuze is threatened, and the safety and damage effectiveness of the ammunition will be seriously degraded. In this paper, the harsh environment during the launch process is first reviewed, including the experimental data, the modeling, and simulation of the multiphysics fields. In particular, the coupling effect of these multiphysics fields are revealed, which aggravates the extreme environment. Furthermore, this paper reviews the protection of fuzes against strong magnetic fields and high-g impacts from three aspects, namely, materials, devices, and systems, and presents prospects for future research. This review will guide studies on the protection of fuzes and the stability of ammunition, as well as promote the effectiveness of electromagnetic railguns.INDEX TERMS Electromagnetic launching, fuze, reliability, harsh environment of multiphysics fields, electromagnetic shielding, anti-high-g impact technology.

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“…The active sensor based on TENG also showed many advantages, for instance, extremely high sensitivity, strong adaptability, high flexibility, and good environment friendliness [ 2 , 19 , 20 , 21 , 22 ]. TENG was regarded to be a promising alternative to human mechanical energy harvesting [ 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 ] and self-powered active sensing [ 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 ].…”

Section: Introductionmentioning

confidence: 99%

Smart Wearable Sensors Based on Triboelectric Nanogenerator for Personal Healthcare Monitoring

Wei

et al. 2021

Micromachines

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Accurate monitoring of motion and sleep states is critical for human health assessment, especially for a healthy life, early diagnosis of diseases, and medical care. In this work, a smart wearable sensor (SWS) based on a dual-channel triboelectric nanogenerator was presented for a real-time health monitoring system. The SWS can be worn on wrists, ankles, shoes, or other parts of the body and cloth, converting mechanical triggers into electrical output. By analyzing these signals, the SWS can precisely and constantly monitor and distinguish various motion states, including stepping, walking, running, and jumping. Based on the SWS, a fall-down alarm system and a sleep quality assessment system were constructed to provide personal healthcare monitoring and alert family members or doctors via communication devices. It is important for the healthy growth of the young and special patient groups, as well as for the health monitoring and medical care of the elderly and recovered patients. This work aimed to broaden the paths for remote biological movement status analysis and provide diversified perspectives for true-time and long-term health monitoring, simultaneously.

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Detection and measurement of impacts in composite structures using a self-powered triboelectric sensor

Cited by 46 publications

References 52 publications

Eco-Friendly Keratin-Based Additives in the Polymer Matrix to Enhance the Output of Triboelectric Nanogenerators

Eco-Friendly Keratin-Based Additives in the Polymer Matrix to Enhance the Output of Triboelectric Nanogenerators

Ammunition Reliability Against the Harsh Environments During the Launch of an Electromagnetic Gun: A Review

Smart Wearable Sensors Based on Triboelectric Nanogenerator for Personal Healthcare Monitoring

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