Flexible Strain Sensor Enabled by Back Propagation Neural Network for Gesture Recognition

Advanced Intelligent Systems, Journal Year: 2025, Volume and Issue: unknown

Published: April 15, 2025

Gesture recognition utilizing flexible strain sensors is widely applied in human–machine interfaces. However, it limited to strict environmental requirements and inadequate accuracy. Herein, a sensor developed based on microfluidics using back propagation (BP) neural network for highly accurate gesture recognition. The microfibers are achieved with stretchable polyurethane shells conductive liquid metal cores convenient, safe, effective way. Further, by combining 3D printing microfluidics, the microfiber units constructed. Because of great advantages mechanical electrical performance units, shows impressive stretching conductivity. When finger, converts bending deformation into signals directly. Thus, set attached five fingers record corresponding different gestures, which can be further analyzed To improve accuracy, combined BP network. With introduced input layer as characteristic values training set, high‐precision updating weights through training. This strategy has broad application potential biomedicine, aerospace, other fields.

Language: Английский

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Biomimetic Flexible Capacitive Sensor with Loop Electrode and Snail Tentacle Structure for Enhanced Proximity and Pressure Sensing

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: May 23, 2025

Flexible electronics have garnered significant attention due to their promising applications in embodied intelligence, smart interaction, and human-machine interface (HMI). In particular, flexible sensors with a detectability of proximity pressure hold great potential areas such as touchless control, health monitoring, robotic perception. Here, we present biomimetic capacitive sensor, called the loop electrode bioinspired snail tentacle sensor (LEBSTS). The loop-patterned layer enhances sensing via fringing field effect, while tentacle-structured polydimethylsiloxane (PDMS) dielectric provides high sensitivity for detection. above design significantly improves performance, achieving long-range detection 140 mm, wide pressure-detection range from 0.9 Pa 500 kPa, 2.844 kPa-1 (0-1 kPa), fast response time 87.5 ms. Moreover, demonstrates good durability, maintaining stable performance over 4500 cycles. Furthermore, application was explored, including human motion HMI, Morse code transmission LoRa wireless communication, visualization systems. This work insights into development high-performance multifunctional offering platform advanced intelligent applications.

Language: Английский

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Flexible Linkage Design of Composite Dielectric Layer for High-Performance Capacitive Pressure Sensor

ACS Applied Electronic Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 30, 2025

Language: Английский

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An iontronic pressure sensor with high linearity and ultrawide range over 4 MPa for submarine pressure monitoring

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 164365 - 164365

Published: June 1, 2025

Language: Английский

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High-Linearity Capacitive 3D Force-Flexible Tactile Sensor Inspired by Mushroom Structure for Human Motion Monitoring and Robotic Gripping

IEEE Sensors Journal, Journal Year: 2024, Volume and Issue: 24(17), P. 27309 - 27317

Published: July 25, 2024

Language: Английский

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