Hypersensitive pressure sensors inspired by scorpion mechanosensory mechanisms for near-body flow detection in intelligent robots

IF 12.5 1区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Science Advances Pub Date : 2025-08-20 DOI:10.1126/sciadv.ady5008

Pinkun Wang, Changchao Zhang, Bo Li, Xiancun Meng, Yuechun Ding, Junqiu Zhang, Shichao Niu, Zhiwu Han, Liwei Lin, Luquan Ren

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Abstract

Sensitivity enhancement for pressure sensors over a broad linear range can improve sensing performance for a wide range of applications such as health monitoring and artificial intelligence. Here, inspired by the high-precision mechanosensory mechanism of the scorpion, a bioinspired piezoresistive pressure sensor (BPPS) is reported for the synergistic enhancement of sensitivity and linearity at 65.56 millivolts per volt per kilopascal and 0.99934, respectively, in a pressure range from 0 to 500 kilopascals. The BPPS can distinguish laminar, transitional, and turbulent flows as well as identify approaching objects of different shapes with an accuracy exceeding 85.42% by integrating a wavelet transform algorithm and the ResNet18 deep learning network. As a proof of concept, BPPS has been engineered in a hexapod robot to enable near-body flow field sensing for active collision avoidance. This work underscores the potential to leverage key design concepts inspired by living insects for improved sensing performance and offers structural insights for other high-precision sensors.

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受蝎子机械感觉机制启发的超敏压力传感器用于智能机器人的近体流量检测

在宽线性范围内提高压力传感器的灵敏度可以提高健康监测和人工智能等广泛应用的传感性能。在此，受蝎子的高精度机械感觉机制的启发，一种仿生压阻压力传感器（BPPS）在0至500千帕的压力范围内，分别在65.56毫伏/伏/千帕和0.99934毫伏/千帕的压力下协同增强了灵敏度和线性度。结合小波变换算法和ResNet18深度学习网络，BPPS可以区分层流、过渡流和湍流，识别不同形状的接近物体，准确率超过85.42%。作为概念验证，BPPS已被设计用于六足机器人，以实现近体流场传感，以主动避免碰撞。这项工作强调了利用受活体昆虫启发的关键设计概念来提高传感性能的潜力，并为其他高精度传感器提供了结构见解。

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来源期刊

Science Advances 综合性期刊-综合性期刊

CiteScore

21.40

自引率

1.50%

发文量

1937

审稿时长

29 weeks

期刊介绍： Science Advances, an open-access journal by AAAS, publishes impactful research in diverse scientific areas. It aims for fair, fast, and expert peer review, providing freely accessible research to readers. Led by distinguished scientists, the journal supports AAAS's mission by extending Science magazine's capacity to identify and promote significant advances. Evolving digital publishing technologies play a crucial role in advancing AAAS's global mission for science communication and benefitting humankind.