Bio-Inspired PVDF-Based, Mouse Whisker Mimicking, Tactile Sensor

Tiwana, Mohsin I.; Tiwana, Moazzam Islam; Redmond, Stephen J.; Lovell, Nigel H.; Iqbal, Javaid

doi:10.3390/app6100297

Cited by 13 publications

(12 citation statements)

References 49 publications

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“…The theoretical value of the eigenfrequency can be obtained using an analytical model based on (8). The simulated and theoretical values for the six modes are listed and compared in Table 2.…”

Section: Finite Element Analysismentioning

confidence: 99%

“…Ju and Ling developed a piezoelectric whisker and applied it to tactile and geometry measurements [6,7]. Another kind of tactile sensor, a PVDF beam-based whisker was reported, and its frequency response was studied by Tiwana et al [8]. Pearson et al and N'Guyen et al applied the whisker sensory system in a robotic rat for obstacle identification [9,10].…”

Section: Introductionmentioning

confidence: 99%

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Influence of Frequency on the Resolution of Magnetostrictive Bio-Inspired Whisker Sensors

Zhao

Wang

et al. 2018

Journal of Sensors

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Magnetostrictive biomimetic whiskers have been used as tactile and flow sensors. Compared to other types of whiskers, such whiskers have the advantage of being able to perform static and dynamic measurements. For dynamic measurement, the whisker’s resolution changes with varying vibration frequency; however, the mechanism for this influence has not been studied yet. Thus, the aim of this study is to investigate the resolution–frequency correlation. First, the structure and operation principle of the whisker were analyzed. Then, the Euler–Bernoulli beam theory was employed to establish the sensing model of the magnetostrictive whisker. Finally, the mapping relationship between sensor resolution and frequency was obtained. The eigenfrequency analysis was implemented by FEM to obtain the frequency response of the whisker. A vibration experimental system was built for dynamic testing. The experimental results were in good agreement with the theoretical calculations. Furthermore, it was noted that the resolution was positively correlated with frequency, and the maximum resolution was attained at the natural frequency (two peak values appeared at the first-order and second-order eigenfrequencies). Our research reveals the manner in which a whisker sensor’s resolution is affected by the vibration frequency. The theoretical model can be used to predict the resolution of magnetostrictive whisker sensors.

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Section: Finite Element Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of Frequency on the Resolution of Magnetostrictive Bio-Inspired Whisker Sensors

Zhao

Wang

et al. 2018

Journal of Sensors

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“…It is widely used for excellent sensing characteristics and offers light flexibility characteristics to the PVDF piezoelectric film [23]. At present, the application research of PVDF mainly focuses on tactile perception [24], impact detection [25,26], bionic prosthesis [27], intelligent structure [28], motion monitoring [29], and others [30,31]. Because of its good flexibility and sensing characteristics for PVDF piezoelectric films, the material has obvious advantages with the use of PVDF for contact topography sensing application research.…”

Section: Introductionmentioning

confidence: 99%

Experimental Research on PVDF Sensing Surface Characteristic Curve Applied to Topography Perception

Zhang

2020

Micromachines

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With the development of intelligent technology, it is of great significance to develop intelligent equipment with topography self-sensing function. The micro morphology perception technology applied to intelligent equipment is the key technology for development. In this paper, at first, topography perception theory based on the PVDF (Polyvinylidene Fluoride) technology is researched, then an experimental study is conducted to sense the characteristic points of the geometric curve of the preset topography surface used in the PVDF film, and then the Ferguson curve model is used to reconstruct the topography characteristic curve. The experimental results show that the reconstruction curve can truly reflect the features of the characteristic curve of the surface of the preset topography, and the feasibility of topography surface sensing technology by PVDF sensing technology is verified. The research provides technical support for the development of intelligent equipment with topography self-sensing function.

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“…Notably, nature provides inspirations to the development of flexible sensor in many ways such as functional material investigation, structural design methodologies, and unique sensing mechanisms [6,[32][33][34][35]. Compared with traditional sensors, the sensors with special bio-mimicking design show higher efficient sensitivity, and have profoundly enlightened an approach in the field of smart sensor development [36][37][38]. For example, animals' whisker perform as a tactile sensor that can detect wind from all directions; based on the bioinspired electronic whisker, a real-time multiple…”

Section: Introductionmentioning

confidence: 99%

3D Printing of Flexible Liquid Sensor Based on Swelling Behavior of Hydrogel with Carbon Nanotubes

Yang

Xie

et al. 2018

Adv Materials Technologies

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Flexible sensors with accurate detection of environmental stimuli (e.g. humidity and chemical substances) have drawn increasing research interests in biomedical engineering and environmental science. However, most work is focused on isotropic sensing of liquid occurrence due to the limitation of material development, sensor design, and fabrication capability. In this paper, 3D printing was used to build multi-functional flexible liquid sensors with multi-materials enabling anisotropic detection of micro liquid droplets. Electrical conductive composite hydrogels capable of This article is protected by copyright. All rights reserved. 2 detecting chemical liquid are developed with poly (ethylene diacrylate) (PEGDA) and multi-walled carbon nanotube (MWCNT). Due to the absorption of the liquid droplet and related swelling behavior, the resistance of PEGDA/MWCNT composite hydrogel increases dramatically while the resistance of pure PEGDA hydrogel decreases significantly. Based on the two composite hydrogels and the related 3D printing method, a mesh-shaped liquid sensor that can effectively identify the position and volume of liquid leakage in a short time was developed. Furthermore, a three-layered liquid sensor to enable bi-directional monitor and detection of the liquid leakage in two different sides was demonstrated. The 3D printed liquid sensor offers a distinctive perspective on the potential applications in various fields for detection of liquid leakage in accurate position and direction.Received: ((will be filled in by the editorial staff)) Revised: ((will be filled in by the editorial staff))

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Bio-Inspired PVDF-Based, Mouse Whisker Mimicking, Tactile Sensor

Cited by 13 publications

References 49 publications

Influence of Frequency on the Resolution of Magnetostrictive Bio-Inspired Whisker Sensors

Influence of Frequency on the Resolution of Magnetostrictive Bio-Inspired Whisker Sensors

Experimental Research on PVDF Sensing Surface Characteristic Curve Applied to Topography Perception

3D Printing of Flexible Liquid Sensor Based on Swelling Behavior of Hydrogel with Carbon Nanotubes

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