Design and Fabrication of a Multi-electrode Metal-core Piezoelectric Fiber and Its Application as an Airflow Sensor

Bian, Yixiang; Zhang, Yanjun; Xia, Xianlong

doi:10.1016/s1672-6529(16)60314-1

Cited by 28 publications

(22 citation statements)

References 26 publications

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“…In summary, sensing-enhancement mechanisms are ubiquitous in biological flow perception systems, such as lateral-line system of Fig. 12 Hair-like airflow sensors a Carbon nanotube fuzzy fibre-type airflow sensor [73] b Piezoelectric fibre-type airflow sensor [74] c Piezoresistive cantilever-type airflow sensor [75] d Capacitive-type airflow sensor array [77] Fig. 13 Airflow sensor array for vectorial sensing a Airflow sensor comprising of four cantilever beams [80] b Ring sensor array with eight PVDF micro-cantilevers [81] Fig.…”

Section: Discussionmentioning

confidence: 99%

“…12 a ). Based on piezoelectric transduction mechanism, a multi‐electrode metal‐core piezoelectric fibre‐based structure has been designed to enhance the performance of the airflow sensor [74]. The longitudinal surface of the piezoelectric ceramic is coated symmetrically with four thin metal layers.…”

Section: Airflow Sensors With Bio‐inspired Interfacial Microstructuresmentioning

confidence: 99%

“… Hair‐like airflow sensors a Carbon nanotube fuzzy fibre‐type airflow sensor [73] b Piezoelectric fibre‐type airflow sensor [74] c Piezoresistive cantilever‐type airflow sensor [75] d Capacitive‐type airflow sensor array [77]…”

Section: Airflow Sensors With Bio‐inspired Interfacial Microstructuresmentioning

confidence: 99%

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Enhanced flow sensing with interfacial microstructures

Jiang

Zhao

et al. 2020

Biosurface and Biotribology

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Biological flow receptors show astonishing performance and are used as models for the design of novel flow sensors. However, the functional importance of interfacial microstructures is seldom discussed in previous review papers. Herein, this review summarises the underlying biomechanical principles in the biological flow receptors and describes the recent progress in bio-inspired flow sensors, in which the underlying sensing-enhancement mechanisms are emphasised. 2.1.2 Pit organ: In non-teleost fishes and amphibians, some SNs that sit in pits or grooves on the skin are referred to be called as 'pit organs,' and linear series of such neuromasts are viewed as 'pit lines' [22-24]. Northcutt and Bleckmann [25] investigated that the 'pit organs' in the axolotl (Ambystoma mexicanum) are similar to other Biosurface and Biotribology

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Section: Discussionmentioning

confidence: 99%

Section: Airflow Sensors With Bio‐inspired Interfacial Microstructuresmentioning

confidence: 99%

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Enhanced flow sensing with interfacial microstructures

Jiang

Zhao

et al. 2020

Biosurface and Biotribology

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“…However, these types of airflow sensors suffer from some common issues including high cost of fabrication, drift problem during operation [ 12 , 13 ], large size and weight [ 14 , 15 ], and poor accuracy [ 16 , 17 ]. Thanks to the emergence of smart materials and devices over recent years [ 18 , 19 ], the current mainstream airflow sensors mainly rely on three types of sensing principles (i.e., piezoresistive [ 19 , 20 , 21 ], piezoelectric [ 1 , 22 , 23 ], and capacitive [ 24 ] principles). Compared with piezoresistive airflow sensors, capacitive airflow sensors mainly suffer from slow responses [ 16 , 24 , 25 ]; piezoelectric airflow sensors have little capability in sensing dynamic airflows, which limits their application ranges [ 1 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

“…Thanks to the emergence of smart materials and devices over recent years [ 18 , 19 ], the current mainstream airflow sensors mainly rely on three types of sensing principles (i.e., piezoresistive [ 19 , 20 , 21 ], piezoelectric [ 1 , 22 , 23 ], and capacitive [ 24 ] principles). Compared with piezoresistive airflow sensors, capacitive airflow sensors mainly suffer from slow responses [ 16 , 24 , 25 ]; piezoelectric airflow sensors have little capability in sensing dynamic airflows, which limits their application ranges [ 1 , 22 ]. Furthermore, both capacitive and piezoelectric airflow sensors require complicated measurement circuits and signal processing methods [ 1 ].…”

Section: Introductionmentioning

confidence: 99%

A Direct-Writing Approach for Fabrication of CNT/Paper-Based Piezoresistive Pressure Sensors for Airflow Sensing

Chen

Tran

et al. 2021

Micromachines

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Airflow sensor is a crucial component for monitoring environmental airflow conditions in many engineering fields, especially in the field of aerospace engineering. However, conventional airflow sensors have been suffering from issues such as complexity and bulk in structures, high cost in fabrication and maintenance, and low stability and durability. In this work, we developed a facile direct-writing method for fabricating a low-cost piezoresistive element aiming at high-performance airflow sensing, in which a commercial pen was utilized to drop solutions of single-walled carbon nanotubes onto tissue paper to form a piezoresistive sensing element. The encapsulated piezoresistive element was tested for electromechanical properties under two loading modes: one loading mode is the so-called pressure mode in which the piezoresistive element is pressed by a normal pressure, and another mode is the so-called bending mode in which the piezoresistive element is bended as a cantilever beam. Unlike many other developed airflow sensors among which the sensing elements are normally employed as cantilever beams for facing winds, we designed a fin structure to be incorporated with the piezoresistive element for airflow sensing; the main function of the fin is to face winds instead of the piezoresistive element, and subsequently transfer and enlarge the airflow pressure to the piezoresistive element for the normal pressure loading mode. With this design, the piezoresistive element can also be protected by avoiding experiencing large strains and direct contact with external airflows so that the stability and durability of the sensor can be maintained. Moreover, we experimentally found that the performance parameters of the airflow sensor could be effectively tuned by varying the size of the fin structure. When the fin sizes of the airflow sensors were 20 mm, 30 mm, and 40 mm, the detection limits and sensitivities of the fabricated airflow sensors were measured as 8.2 m/s, 6.2 m/s, 3.2 m/s, 0.0121 (m/s)−2, 0.01657 (m/s)−2, and 0.02264 (m/s)−2, respectively. Therefore, the design of the fin structure could pave an easy way for adjusting the sensor performance without changing the sensor itself toward different application scenarios.

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Bionic Adaptive Thin‐Membranes Sensory System Based on Microspring Effect for High‐Sensitive Airflow Perception and Noncontact Manipulation

Zhou

Xiao

Liang

et al. 2021

Adv Funct Materials

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Recently airflow sensors based on mechanical deformation mechanisms have drawn extensive attention due to their favorable flexibility and sensitivity. However, the fabrication of highly sensitive and self-adaptive airflow sensors in a simple, controllable, and scalable method still remains a challenge. Herein, inspired by the wing membrane of a bat, a highly sensitive and adaptive graphene/single-walled nanotubes-Ecoflex membrane (GSEM) based airflow sensor mediated by the reversible microspring effect is developed. The fabricated GSEM is endowed with an ultralow airflow velocity detection limit (0.0176 m s −1 ), a fast response time (≈1.04 s), and recovery time (≈1.28 s). The GSEM-based airflow sensor can be employed to realize noncontact manipulation. It is applied to a smart window system to realize the intelligent, open, and close behaviors via a threshold control. In addition, an array of airflow sensors is effectively designed to differentiate the magnitude and spatial distribution of the applied airflow stimulus. The GSEM-based airflow sensor is further integrated into a wireless vehicle model system, which can sensitively capture the flow velocity information to realize a real-time direction of motion manipulation. The microspring effect-based airflow sensing system shows significant potentials in the fields of wearable electronics and noncontact intelligent manipulation.

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Design and Fabrication of a Multi-electrode Metal-core Piezoelectric Fiber and Its Application as an Airflow Sensor

Cited by 28 publications

References 26 publications

Enhanced flow sensing with interfacial microstructures

Enhanced flow sensing with interfacial microstructures

A Direct-Writing Approach for Fabrication of CNT/Paper-Based Piezoresistive Pressure Sensors for Airflow Sensing

Bionic Adaptive Thin‐Membranes Sensory System Based on Microspring Effect for High‐Sensitive Airflow Perception and Noncontact Manipulation

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