Multilayer Microstructured High-Sensitive Ultrawide-Range Flexible Pressure Sensor With Modulus Gradient

Lü, Xiaozhou; Meng, Xiangyu; Shi, Yaoguang; Tang, Hongyao; Bao, Weimin

doi:10.1109/ted.2022.3154677

Cited by 20 publications

(11 citation statements)

References 32 publications

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“…However, too much fluid electrolyte cannot be effectively bound through the polymer network, which leads to environmental instability, that is, potential leakage, high‐temperature evaporation, and low‐temperature freezing during deformation, among other intrinsic limitations. [ 78–91 ] Some new ion‐conductive materials need to be urgently developed to overcome these problems.…”

Section: Integrated Design Of Dynamic Bonds and Stress‐sensing Structurementioning

confidence: 99%

“…Conductive self-healing hydrogels based on self-healing mechanisms can be classified as external stimuli (heat, self-healing agents) or autonomous interactions of the material itself (dynamic chemical bonding, non-covalent interactions). [84][85][86][87] Recently reported mechanisms of conductive self-healing hydrogels are mainly based on autonomous self-healing. These include mainly dynamic covalent bonds (Schiff base reactions, disulfide bonds, Diels-Alder reactions, and borate ester bonds), and noncovalent bonds (hydrogen bonds, ionic interactions, hydrophobic interactions, and host-guest interactions).…”

Section: Self-healing Hydrogel Sensorsmentioning

confidence: 99%

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Self‐Healing Stress Sensors: Coupling Stress‐Sensing Performance with Dynamic Chemistry

Wang

Zhang

2023

Advanced Sensor Research

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Flexible stress sensors that can convert different forces into electrical signals show great potential for applications in wearable electronics and electronic skin. The integration of self‐healing capacity into stress‐sensing materials can boost their reliability, stability, and long‐term performance. There have been many reviews describing the progress of research on self‐healing stress sensors. However, most have typically investigated the self‐healing design separately from the sensing mechanism. The review focuses on how the latest advances in coupling stress‐sensing performance with dynamic chemistry balance self‐healing and sensing performance. Then, based on sensing structures and self‐healing dynamic bonds, the design strategies, and preparation methods of self‐healing sensors and their advantages and disadvantages in recent years are summarized in detail. It is anticipated that this work will provide insights and guidance for the future development of sensors with synergistically enhanced self‐healing and sensing properties and their application designs.

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Section: Integrated Design Of Dynamic Bonds and Stress‐sensing Structurementioning

confidence: 99%

Section: Self-healing Hydrogel Sensorsmentioning

confidence: 99%

Self‐Healing Stress Sensors: Coupling Stress‐Sensing Performance with Dynamic Chemistry

Wang

Zhang

2023

Advanced Sensor Research

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“…The strip resistor in the pressure taker changes with the pressure. Through the Wheatstone bridge, it amplifies the resistance change into the pressure difference change and transmits it to the transmission circuit, where the pressure difference signal is filtered and amplified again before being transmitted via the electrical interface [6][7] . As all the response hysteresis occurs at the first action, there is no major fault in the electrical part of the pressure sensor.…”

Section: Fault Mechanism Analysismentioning

confidence: 99%

Influence of different testing positions of sensors on the dynamic response of load sensing hydraulic systems

Liu

Wang²

2023

J. Phys.: Conf. Ser.

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This paper first introduced the load sensing hydraulic system and elaborated on its load feedback, pressure cut-off, and constant power control principles. Moreover, based on the response hysteresis of the load sensing hydraulic system in the actual commissioning of the project, this paper proposed the possible influence of the sensor on the response of the hydraulic system through troubleshooting analysis. Third, experiments were conducted to obtain the system dynamic response curves given different sensor positions and to prove the hypothesis. Meanwhile, the influence mechanism and improvement measures were analyzed. Finally, the optimal installation positions of the sensor based on different operating conditions were discussed.

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“…Flexible sensors have attracted tremendous attention due to their potential applications in the fields of health monitoring, medical diagnosis, electronic skin (e-skin), and artificial intelligence [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 ]. In recent years, flexible sensors have made great progress in material selection, structure design, and practical application [ 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 ]. Currently, the most widely studied sensing materials include traditional silicon-based materials, flexible and stretchable polymers, and conductive carbon and metal nanostructures, including nanoparticles, nanowires, nanosheets, and nanofibers [ 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , <...…”

Section: Introductionmentioning

confidence: 99%

Conjugated Polymer-Based Nanocomposites for Pressure Sensors

et al. 2023

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Flexible sensors are the essential foundations of pressure sensing, microcomputer sensing systems, and wearable devices. The flexible tactile sensor can sense stimuli by converting external forces into electrical signals. The electrical signals are transmitted to a computer processing system for analysis, realizing real-time health monitoring and human motion detection. According to the working mechanism, tactile sensors are mainly divided into four types—piezoresistive, capacitive, piezoelectric, and triboelectric tactile sensors. Conventional silicon-based tactile sensors are often inadequate for flexible electronics due to their limited mechanical flexibility. In comparison, polymeric nanocomposites are flexible and stretchable, which makes them excellent candidates for flexible and wearable tactile sensors. Among the promising polymers, conjugated polymers (CPs), due to their unique chemical structures and electronic properties that contribute to their high electrical and mechanical conductivity, show great potential for flexible sensors and wearable devices. In this paper, we first introduce the parameters of pressure sensors. Then, we describe the operating principles of resistive, capacitive, piezoelectric, and triboelectric sensors, and review the pressure sensors based on conjugated polymer nanocomposites that were reported in recent years. After that, we introduce the performance characteristics of flexible sensors, regarding their applications in healthcare, human motion monitoring, electronic skin, wearable devices, and artificial intelligence. In addition, we summarize and compare the performances of conjugated polymer nanocomposite-based pressure sensors that were reported in recent years. Finally, we summarize the challenges and future directions of conjugated polymer nanocomposite-based sensors.

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Multilayer Microstructured High-Sensitive Ultrawide-Range Flexible Pressure Sensor With Modulus Gradient

Cited by 20 publications

References 32 publications

Self‐Healing Stress Sensors: Coupling Stress‐Sensing Performance with Dynamic Chemistry

Self‐Healing Stress Sensors: Coupling Stress‐Sensing Performance with Dynamic Chemistry

Influence of different testing positions of sensors on the dynamic response of load sensing hydraulic systems

Conjugated Polymer-Based Nanocomposites for Pressure Sensors

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